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1. The Millennium Seed Bank Partnership

Author

Breman, E., primary, Balding, S., additional, Cable, S., additional, Carvey, N., additional, Castillo-Lorenzo, E., additional, Chapman, T., additional, Cockel, C., additional, Cossu, T.A., additional, Dickie, J., additional, Faruk, A., additional, Hardwick, K., additional, Hudson, A., additional, Mattana, E., additional, Miles, S., additional, Oldfield, H., additional, Osborne, J., additional, Peach, J., additional, Pearce, T., additional, Phillips, C., additional, Rakotoarisoa, S., additional, Ulian, T., additional, Way, M., additional, and Willey, I., additional

Published
2023
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2. Gundelia tournefortii L. (Akkoub): a review of a valuable wild vegetable from Eastern Mediterranean.

Author

Hani, N., Abulaila, K., Howes, M.-J. R., Mattana, E., Bacci, S., Sleem, K., Sarkis, L., Eddine, N. Saed, Baydoun, S., Apostolides, N. Arnold, and Ulian, T.

Abstract

Gundelia tournefortii L. (Asteraceae) is an artichoke-like wild edible vegetable that grows in the semi-arid climate of the East Mediterranean. Due to its high cultural and economic values for culinary and therapeutic uses, this plant is exposed to overharvesting driven by household consumption and trade, threatening the survival of natural populations. Some limited data on the nutrient composition of G. tournefortii exists indicating presence of folic acid and several essential amino acids. Research on seed germination reports that mechanical scarification, gibberellic acid, and cold stratification are all effective treatments for seed dormancy breaking and therefore to propagate plants from seed. Successful vegetative propagation from the plant meristems is also available. However, despite some exceptions, the species is still not widely cultivated due to its thorny habit and complex seed germination requirements, and the ability to ensure seed germination under natural field conditions remains to be addressed. [ABSTRACT FROM AUTHOR]

Published
2024
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8. State of the World’s Plants and Fungi

Author

Antonelli, A., Smith, R. J., Fry, C., Simmonds, Monique S. J., Kersey, Paul J., Pritchard, H. W., Abbo, M. S., Acedo, C., Adams, J., Ainsworth A.M., Allkin B., Annecke W, Bachman S P, Bacon, K., Bárrios, S., Barstow, C., Battison, A., Bell, E., Bensusan, K., Bidartondo, M. I., Blackhall-Miles, R. J., Borrell, J. S., Brearley, F. Q., Breman, E., Brewer, R. F. A., Brodie, J., Cámara-Leret, R., Campostrini Forzza, R., Cannon, P., Carine, M., Carretero, J., Cavagnaro, T. R., E Cazar, M., Chapman, T., Cheek, M., Clubbe, C., Cockel, C., Collemare, J., Cooper, A., Copeland, A. I., Corcoran, M., Couch, C., Cowell, C., Crous, P., Da Silva, M., Dalle, G., Das, D., David, J. C., Davies, L., Davies, N., Canha, M. N., Lirio, E. J., Demissew, S., Diazgranados, M., Dickie, J., Dines, T., Douglas, B., Dröge, G., Dulloo, M. E., Fang, R., Farlow, A., Farrar, K., Fay, M. F., Felix, J., Forest, F., Forrest, L. L., Fulcher, T., Gafforov, Y., Gardiner, L. M., Gâteblé, G., Gaya, E., Benoit Geslin, Gonçalves, S. C., Gore, C. J. N., Govaerts, R., Gowda, B., Grace, O. M., Grall, A., Haelewaters, D., Halley, J. M., Hamilton, M. A., Hazra, A., Heller, T., Hollingsworth, P. M., Holstein, N., Howes, M. -J R., Hughes, M., Hunter, D., Hutchinson, N., Hyde, K., Iganci, J., Jones, M., Kelly, L. J., Kirk, P., Koch, H., Krisai-Greilhuber, I., Lall, N., Langat, M. K., Leaman, D. J., Leão, T. C., Lee, M. A., Leitch, I. J., Leon, C., Lettice, E., Lewis, G. P., Li, L., Lindon, H., Liu, J. S., Liu, U., Llewellyn, T., Looney, B., Lovett, J. C., Łukasz Łuczaj, Lulekal, E., Maggassouba, S., Valéry Malécot, Martin, C., Masera, O. R., Mattana, E., Maxted, N., Mba, C., Mcginn, K. J., Metheringham, C., Miles, S., Miller, J., Milliken, W., Moat, J., Moore, P. G. P., Morim, M. P., Mueller, G. M., Muminjanov, H., Negrão, R., Nic Lughadha, E., Nicolson, N., Niskanen, T., Nono Womdim, R., Noorani, A., Obreza, M., O’donnell, K., O’hanlon, R., M Onana, J., Ondo, I., Padulosi, S., Paton, A., Pearce, T., Pérez Escobar, O. A., Pieroni, A., Pironon, S., Prescott, T. A. K., Qi, Y. D., Qin, H., Quave, C. L., Rajaovelona, L., Razanajatovo, H., Reich, P. B., Rianawati, E., Rich, T. C. G., Richards, S. L., Rivers, M. C., Ross, A., Rumsey, F., Ryan, M., Ryan, P., Sagala, S., Sanchez, M. D., Sharrock, S., Shrestha, K. K., Sim, J., Sirakaya, A., Sjöman, H., Smidt, E. C., Smith, D., Smith, P., Smith, S. R., Sofo, A., Spence, N., Stanworth, A., Stara, K., Stevenson, P. C., Stroh, P., Suz, L. M., Tambam, B. B., Tatsis, E. C., Taylor, I., Thiers, B., Thormann, I., Trivedi, C., Twilley, D., Twyford, A. D., Ulian, T., Utteridge, T., Vaglica, V., Vásquez-Londoño, C., Victor, J., Viruel, J., Walker, B. E., Walker, K., Walsh, A., Way, M., Wilbraham, J., Wilkin, P., Wilkinson, T., Williams, C., Winterton, D., Wong, K. M., Woodfield-Pascoe, N., Woodman, J., Wyatt, L., Wynberg, R., Zhang, B. G., Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Royal Botanic Gardens (Kew), and Sfumato Foundation

Subjects
[SDE.BE]Environmental Sciences/Biodiversity and Ecology, [SDE.ES]Environmental Sciences/Environmental and Society, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2020

13. Photoinhibition of seed germination: Occurrence, ecology and phylogeny

Author

Carta, A. Skourti, E. Mattana, E. Vandelook, F. Thanos, C.A.

Abstract

Light conditions provide important information about the best time and place for seedling establishment. Photoinhibition of seed germination (PISG), defined as the partial or complete suppression of germination under white light, has been interpreted as a physiological adaptation to avoid germination at or near the soil surface. This review is the first report of an all-inclusive, fully quantitative analysis of PISG in seed plants. Pertinent data available from the published literature for 301 taxa from 59 families and 27 orders were assessed. The association of PISG with several plant and seed traits allowed us to consider the adaptive significance of PISG in relation to plant life histories and the natural environments. As no gymnosperm has been found to be truly photoinhibited, it seems that PISG is apomorphic to flowering plants (especially monocots). Seeds of most taxa with PISG have a dark colour and intermediate mass, mostly in the range 1 to 27 mg. PISG is absent from humid tropical regions and from cold climates, but it is strongly associated with open, disturbed and dry habitats. An intriguing implication of PISG is the formation of a soil-surface seed bank. Taken together, these results clearly indicate that PISG is a physiological adaptation to avoid germination on the soil surface, where conditions are not suitable for seedling establishment. PISG is probably much more frequent in seed plants than previously thought. Thus, laboratory experiments should be conducted under well-characterized light and dark conditions. Copyright © Cambridge University Press 2017.

Published
2017

16. Genetic variability of the narrow endemic Rhamnus persicifolia Moris (Rhamnaceae) and its implications for conservation

Author

Bacchetta, G, Fenu, G, Mattana, E, Zecca, G, Grassi, F, Casazza, G, Minuto, L, Bacchetta G, Fenu G, Mattana E, Zecca G, GRASSI, Fabrizio, Casazza G, Minuto L., Bacchetta, G, Fenu, G, Mattana, E, Zecca, G, Grassi, F, Casazza, G, Minuto, L, Bacchetta G, Fenu G, Mattana E, Zecca G, GRASSI, Fabrizio, Casazza G, and Minuto L.

Abstract

Rhamnus persicifolia Moris is an endemic small tree belonging to the Rhamnus cathartica group, growing along mountainous streams of Central-Eastern Sardinia (Italy). ISSR markers were used to detect the genetic diversity within and among six populations representative of the species distribution range. In spite of the limited distribution of this endemic taxon, fairly high levels of genetic diversity were detected. Percentage of polymorphic bands (PPB), gene diversity (HS and HT) and Shannon information measure (Sh) were calculated both at population (PPB = 30.70%, HS = 0.1105, Sh = 0.1646) and at species level (PPB = 68.42%, HT = 0.2066, Sh = 0.3139).The existence of a spatial distribution of genetic diversity in R. persicifolia was revealed by a low gene flow, a fairly high level of genetic differentiation (GST = 0.4583) among populations and a positive correlation between genetic and geographic distances (Mantel test, r = 0.71, p = 0.016). The spatial genetic structure was also confirmed with BAPS analysis. Our results show that a certain level of isolation by distance and sex-ratio bias may explain the distribution of genetic diversity among populations. Conservation measures are suggested on the basis of the genetic diversity detected, by implementing an integrated in situ and ex situ conservation program for each population, in order to ensure effective protection for this endemic species. © 2011 Elsevier Ltd.

Published
2011

17. Morphological and functional seed traits of the wild medicinal plant Dioscorea strydomiana, the most threatened yam in the world.

Author

Mattana, E., Gomez‐Barreiro, P., Lötter, M., Hankey, A. J., Froneman, W., Mamatsharaga, A., Wilkin, P., Ulian, T., and Pritchard, H.

Subjects
*GERMINATION, *WILD plants, *ENDANGERED plants, *MEDICINAL plants, *YAMS, *RARE plants
Abstract

Morphological and functional seed traits have important roles in characterising the species regeneration niche and help to understand the reproductive biology of rare and threatened plants, which can thus support appropriate plant conservation measures.Seed morphometric and dispersal kinetics of the critically endangered Dioscorea strydomiana were measured and compared with those of four other Dioscorea species, and seed germination response under constant temperatures (5–35 °C) was compared with that of the congeneric and widespread D. sylvatica.Seed mass of D. strydomiana (ca. 14 mg) was twice that of D. sylvatica, but similar to or smaller than the other species examined. Seeds of D. strydomiana have the lowest speed of descent and lowest variability in most of the morphological traits considered, suggesting lower phenotypic plasticity but higher variance in the wing‐loading value. Seeds of D. strydomiana reached maximum germination at 15 °C (ca. 47%), which decreased slightly to ca. 37% at 25 °C and was completely inhibited at 35 °C. D. sylvatica seeds started to germinate at 10 °C (ca. 3%), reached 75–80% germination at 15–20 °C and maximum (ca. 90%) at 25–30 °C. Base temperatures for germination (Tb) were 9.3 and 5.7 °C, for D. strydomiana and D. sylvatica, respectively. Due to the higher germination percentages of D. sylvatica, ceiling and optimum temperatures could also be modelled for this species, suggesting higher sensitivity to high temperature for seeds of D. strydomiana.The detected poor seed lot quality of D. strydomiana suggests difficulties in reproduction from seed, highlighting the need for further investigation and conservation actions for this threatened yam species. [ABSTRACT FROM AUTHOR]

Published
2019
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18. Quanto è utile la conservazione ex situ per quella in situ?

Author

Minuto, L, Bacchetta, G, Bedini, G, Carta, A, Casazza, G, Fenu, G, Grassi, F, Mattana, E, Zecca,G, RAIMONDO, Francesco Maria, SCIALABBA, Anna, Minuto, L, Bacchetta, G, Bedini, G, Carta, A, Casazza, G, Fenu, G, Grassi, F, Mattana, E, Raimondo, FM, Scialabba, A, and Zecca,G

Subjects
Settore BIO/01 - Botanica Generale, analisi molecolari, conservazione semi, conservazione in situ, Conservazione, diversità genetica, banca del germoplasma, flora minacciata
Published
2010

19. Population genetics and reproductive biology investigations for conservation of Malcolmia littorea : introduction to a multidisciplinary approach

Author

De Vitis M., Fabrini G., Seal C., Ulian T, Pritchard H, Mattana E., Mattioni C., Crosti R., and Magrini S.

Subjects
conservation, malcolmia littorea
Abstract

Sandy coastal habitats are among the most vulnerable in the world because of their physicaldynamism, and because they are strongly affected by human activities such as construction of harbours, private and tourism infrastructures, mechanical cleaning of beaches, trampling, pollution and invasion by alien plants (Carboni et al., 2009; Defeo et al., 2009). All these factors of disturbance cause and facilitate habitat fragmentation and degradation processes (Carranzaet al., 2010), and as a result, most coastlines are experiencing accelerated rates of erosion(Defeo et al., 2009). The destruction of these habitats is strictly linked with the loss of numerous species which are highly specialized for life in these dynamic systems and are found in no other

Published
2015

22. Understanding biological and ecological factors affecting seed germination of the multipurpose tree <italic>Anogeissus leiocarpa</italic>.

Author

Mattana, E., Sacande, M., Bradamante, G., Gomez‐Barreiro, P., Sanogo, S., and Ulian, T.

Subjects
*COMBRETACEAE, *FRUIT morphology, *GERMINATION, *OVULES, *SEED viability
Abstract

Abstract: Anogeissus leiocarpa (DC.) Guill. & Perr. (Combretaceae) has important economic and cultural value in West Africa as source of wood, dye and medicine. Although this tree is in high demand by local communities, its planting remains limited due to its very low propagation via seed. In this study, X‐rays were used to select filled fruits in order to characterise their morphology and seed germination responses to treatment with sulphuric acid and different incubation temperatures. Morphological observations highlighted a straight orthotropous seed structure. The increase in mass detected for both intact and scarified fruits through imbibition tests, as well as morphological observations of fruits soaked in methylene blue solution, confirmed that they are water‐permeable, although acid‐scarified fruits reached significantly higher mass increment values than intact ones. Acid scarification (10 min soaking in 98% H2SO4) positively affected seed germination rate but not final germination proportions. When intact fruits where incubated at a range of temperatures, no seeds germinated at 10 °C, while maximum seed germination (ca. 80%) was reached at 20 °C. T50 values ranged from a minimum of ca. 12 days at 25 °C to a maximum of ca. 34 days at 15 and 35 °C. A theoretical base temperature for germination (Tb) of ca. 10 °C and a thermal requirement for 50% germination (S) of ca. 195 °Cd were also identified for intact fruits. The results of this study revealed the seed germination characteristics driven by fruit and seed morphology of this species, which will help in its wider propagation in plantations. [ABSTRACT FROM AUTHOR]

Published
2018
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25. Conservation genetics of two island endemic Ribes spp. (Grossulariaceae) of Sardinia: Survival or extinction?

Author

Gentili, R, Fenu, G, Mattana, E, Citterio, S, DE MATTIA, F, Bacchetta, G, GENTILI, RODOLFO FILIPPO, CITTERIO, SANDRA, DE MATTIA, FABRIZIO, Bacchetta, G., Gentili, R, Fenu, G, Mattana, E, Citterio, S, DE MATTIA, F, Bacchetta, G, GENTILI, RODOLFO FILIPPO, CITTERIO, SANDRA, DE MATTIA, FABRIZIO, and Bacchetta, G.

Abstract

Measuring levels of population genetic diversity is an important step for assessing the conservation status of rare or endangered plant species and implementing appropriate conservation strategies. Populations of Ribes multiflorum subsp. sandalioticum and R. sardoum, two endangered endemic species from Sardinia, representing the whole genus on the island, were investigated using ISSR and SSR markers to determine levels and structure of genetic variability in their natural populations. Results indicated medium to low genetic diversity at the population level: Nei's gene diversity for ISSR markers ranged from 0.0840 to 0.1316; the expected heterozygosity (HE) for SSR ranged from 0.4281 to 0.7012. In addition, only one remnant population of R. sardoum showed a high level of inbreeding, in accordance with its very small size. Regarding the structure of the six R. sandalioticum populations, both principal coordinates analysis (PCoA) and STRUCTURE analysis of ISSR and SSR data highlighted low population structure, although two populations appeared to be clearly distinct from the others. The genetic pattern of the two taxa associated with their different ecological positions indicated resilience of R. sandalioticum populations in fresh and humid habitats and uncertain future resistance for the residual R. sardoum population in xeric calcareous stands. Hence, this study highlights the importance of an integrated conservation approach (genetic plus in situ and ex situ conservation studies/measures) for activating management programmes in these endemic and threatened taxa that can be considered as crop wild relatives of cultivated Ribes species.

Published
2015

26. Lamyropsis genus in the Mediterranean area: Phylogenetic position of L. microcephala (Asteraceae: Cardueae)

Author

Gentili, R, Fenu, G, Labra, M, Bruni, I, Mattana, E, Bacchetta, G, Gentili, R, Fenu, G, Labra, M, Bruni, I, Mattana, E, and Bacchetta, G

Abstract

The aim of this study was to give results about position of Lamyropsis microcephala within an already existing phylogeny of Lamyropsis genus on the Mediterranean area, by analyzing external transcribed spacer/internal transcribed spacer sequence data. The four Lamyropsis species considered in the model can be recognized as distinct taxa originated from successive migration/speciation events.

Published
2015

28. La conservazione ex situ della biodiversità delle specie vegetali spontanee e coltivate in Italia. Stato dell'arte, criticità e azioni da compiere

Author

Acosta, A., Alonzi, A., Annicchiarico, P., Antonacci, D., Aprile, S., Avanzato, D., Bacchetta, G., Bacchetta, L., Bagella, S., Baiocco, M., Baldi, M., Barbera, G., Bartolini, G., Baruzzi, G., Bedini, G., Belletti, P., Benvenuti, S., Bergamaschi, M., Bergamo, P., Bertin, L., Bianchi, P. G., Biscotti, N., Blando, F., Bonito, A., Bonomi, C., Borgo, M., Branca, F., Brandoni, L., Bretzel, F., Brundu, G., Bullitta, S., Burchi, G., Bussotti, F., Caboni, E., Calvo, E., Camarda, I., Camoriano, L., Cantini, C., Capriolo, A., Capuana, M., Carrabba, P., Casti, M., Cattabriga, A., Ceriani, R., Cervelli, C., Civale, P., Clerici, F., Colletti, L., Contri, M. L., Converio, F., Crescente, M. F., Crinó, P., Crosti, R., Damiano, C., Danti, R., DE GIORGIO, D., DE LISI, A., D'Egidio, M. G., DE MATTEIS TORTORA, M., DE STEFANIS, E., Delfine, S., DE ROGATIS, A., DI CANDILO, M., DI GIUSEPPE, E., D’Ovidio, C., Dominione, V., Ducci, F., Engel, P., Ercole, S., Esposito, S., Falcinelli, M., Farina, E., Fenu, G., Ferrari, V., Ferroni, F., Ficcadenti, N., Fideghelli, C., Filigheddu, R., Fineschi, S., Fiorentin, R., Franca, A., Forte, L., Fusaro, E., Gardiman, M., Gentile, A., Gentili, R., Germanà, M. A., Giacanelli, V., Giannini, M., Giannini, R., Giardina, F., Giovannini, A., Giovannini, D., Gironi, R., Giust, M., Gorian, F., Gras, M., Grassotti, A., Gratani, L., Grossoni, P., Guidi, S., Ianni, G., Inglese, P., Insero, O., Izzi, F., LA MALFA, S., LA MANTIA, T., Labra, M., Laghetti, G., Lamastra, S., Lambardi, M., LI DESTRI NICOSIA, O., Lioi, L., Liverani, A., Logozzo, G., Longhi, E., Lorenzetti, F., Lorenzetti, S., Lupotto, E., Macculi, M., Magaldi, T., Malfanti, F., Malvolti, M. E., Mameli, G., Margiotta, B., Marino, D., Marino, M., Mariotti, M. G., Mascolo, R. A., Mattana, E., Meloni, F., Milan, C., Montanari, I., Montesano, V., Moraldi, M., Mucciarelli, M., Mughini, G., Mulè, P., Negri, V., Negro, D., Nepi, M., Nervo, G., Nesti, U., Nobili, P., Notarmuzi, M. C., Orru, M., Pacini, E., Padulosi, S., Pallotta, L., Palmieri, M., Palumbo, M., Paolucci, G., Paris, P. L., Pasqua, G., Pasqui, M., Pasquini, M., Pavone, P., Pelillo, R., Pepe, R., Peratoner, G., Perri, E., Perrino, P., Petrucci, B., Pettenella, D., Piccini, C., Piergiovanni, A. R., Piffanelli, P., Pignone, D., Piluzza, G., Piotto, B., Podda, L., Polignano, G., Pollutri, A., Pontecorvo, C., Porceddu, E., Porqueddu, C., Puglisi, S., Quarta, R., Rainini, F., G. A., Re, Recupero, S., Redaelli, R., REFORGIATO RECUPERO, G., Resta, P., Romano, D., Ronchi, B., Rosellini, D., Rossi, G., Sabatti, M., Sabatini, A. G., Saccardo, F., Salvati, R., Salvioni, C., Santini, A., Saporito, L., Sarli, G., SCARASCIA MUGNOZZA, G. T., SCARASCIA MUGNOZZA, G., Scarpa, G. M., Schiavella, P., Schiavi, M., Schiavon, L., Schirone, B., Scippa, G., Sgarbi, Elisabetta, Sgorbati, S., Sgrulletta, D., Simeone, A. M., Sonnante, G., Sorrentino, C., Sottile, F., Spada, P., Speranza, M., Stanca, M., Stanisci, A., Sulas, L., Terzi, M., Terzi, V., Tomaselli, V., Tomat, E., Torricelli, R., Tugliozzi, C., Urbano, M., Vaccino, P., Valletta, A., Varone, L., Vender, C., Vento, D., Veronesi, F., Veronesi, M., Vettori, C., Vietto, L., Villa, M., Villani, G., Vlahov, G., Zanatta, K., and Zizzo, G.

Subjects
biodiversità vegetale, banche del germoplasma, conservazione ex situ, conservazione "on farm"
Published
2010

29. La conservazione ex situ della biodiversità delle specie vegetalispontanee e coltivate in Italia Stato dell’arte, criticità e azioni da compiere

Author

Acosta, Alonzi, A., Annicchiarico, P., Antonacci, D., Aprile, S., Avanzato, D., Bacchetta, G., Bacchetta, L., Bagella, S., Baiocco, M., Baldi, M., Barbera, G., Bartolini, G., Baruzzi, G., Bedini, G., Belletti, P., Benvenuti, S., Bergamaschi, M., Bergamo, P., Bertin, L., Bianchi, Pg, Biscotti, N., Blando, F., Bonito, A., Bonomi, C., Borgo, M., Branca, F., Brandoni, L., Bretzel, F., Brundu, G., Bullitta, S., Burchi, G., Bussotti, F., Caboni, E., Calvo, E., Camarda, I., Camoriano, L., Cantini, C., Capriolo, A., Capuana, M., Carrabba, P., Casti, M., Cattabriga, A., Ceriani, R., Cervelli, C., Civale, P., Clerici, F., Colletti, L., Contri, Ml, Converio, F., Crescente, M. F., Crinó, P., Crosti, R., Damiano, C., Danti, R., DE GIORGIO, D., DE LISI, A., D'Egidio, M. G., DE MATTEIS TORTORA, M., DE STEFANIS, E., Delfine, S., DE ROGATIS, A., DI CANDILO, M., DI GIUSEPPE, E., D’Ovidio, C., Dominione, V., Ducci, F., Engel, P., Ercole, S., Esposito, S., Falcinelli, M., Farina, E., Fenu, G., Ferrari, V., Ferroni, F., Ficcadenti, N., Fideghelli, C., Filigheddu, R., Fineschi, S., Fiorentin, R., Franca, A., Forte, L., Fusaro, E., Gardiman, M., Gentile, A., Gentili, R., Germanà, M., Giacanelli, V., Giannini, M., Giannini, R., Giardina, F., Agiovannini, Giovannini, D., Gironi, R., Giust, M., Gorian, F., Gras, M., Grassotti, A., Gratani, L., Grossoni, P., Guidi, S., Ianni, G., Inglese, P., Insero, O., Izzi, F., LA MALFA, S., LA MANTIA, T., Labra, M., Laghetti, G., Lamastra, S., Lambardi, M., Lanza, B., LI DESTRI NICOSIA, O., Lioi, L., Liverani, A., Logozzo, G., Longhi, E., Lorenzetti, F., Lorenzetti, S., Lupotto, E., Macculi, M., Magaldi, T., Malfanti, F., Malvolti, M. E., Mameli, G., Margiotta, B., Marino, D., Marino, M., Mariotti, Mauro, Mascolo, R. A., Mattana, E., Meloni, F., Milan, C., Montanari, I., Montesano, V., Moraldi, M., Mucciarelli, M., Mughini, G., Mulè, P., Negri, V., Negro, D., Nepi, M., Nervo, G., Nesti, U., Nobili, P., Notarmuzi, M. C., Orru, M., Pacini, E., Padulosi, S., Pallotta, L., Palmieri, M., Palumbo, M., Paolucci, G., Paris, P. L., Pasqua, G., Pasqui, M., Pasquini, M., Pavone, P., Pelillo, R., Pepe, R., Peratoner, G., Perri, E., Perrino, P., Petrucci, B., Pettenella, D., Piccini, C., Piergiovanni, A. R., Piffanelli, P., Pignone, D., Piluzza, G., Piotto, B., Podda, L., Polignano, G., Pollutri, A., Pontecorvo, C., Porceddu, E., Porqueddu, C., Puglisi, S., Quarta, R., Rainini, F., G. A., Re, Recupero, S., Redaelli, R., REFORGIATO RECUPERO, G., Resta, P., Romano, D., Ronchi, B., Rosellini, D., Rossi, G., Sabatti, M., Sabatini, A. G., Saccardo, F., Salvati, R., Salvioni, C., Santini, A., Saporito, L., Sarli, G., SCARASCIA MUGNOZZA, G. T., SCARASCIA MUGNOZZA, G., Scarpa, G. M., Schiavella, P., Schiavi, M., Schiavon, L., Schirone, B., Scippa, G., Sgarbi, E., Sgorbati, S., Sgrulletta, D., Simeone, A. M., Sonnante, G., Sorrentino, C., Sottile, F., Spada, P., Speranza, M., Stanca, M., Stanisci, A., Sulas, L., Terzi, M., Terzi, V., Tomaselli, V., Tomat, E., Torricelli, R., Tugliozzi, C., Urbano, M., Vaccino, P., Valletta, A., Varone, L., Vender, C., Vento, D., Veronesi, F., Veronesi, M., Vettori, C., Vietto, L., Villa, M., Villani, G., Vlahov, G., Zanatta, K., and Zizzo, G.

Published
2010

30. Conservaciòn ex situ de plantas silvestres

Author

Bacchetta, G., Ballestreros, D., Belletti, Piero, Brullo, S., Bueno, A., Cagelli, L., CANO CASTILLO, M., Carasso, V., Carriò, E., Casas, J. L., CAUJAPÉ CASTELLS, J., Cervelli, C., Draper, D., ESCRIBÀ BAEZA, M. C., Fenu, G., GOMEZ CAMPO, C., Gorian, F., Grillo, O., Güemes, J., JIMENEZ ALFARO, B., Marques, I., Mattana, E., Mulè, P., Nepi, M., Pacini, E., Pavone, P., Piotto, B., Pontecorvo, C., Prada, A., SERRANO MARTINEZ, F., Venora, G., Vietto, L., and Virevaire, M.

Published
2008

32. Integration of genetic and seed fitness data to the conservation of isolated subpopulations of the Mediterranean plant Malcolmia littorea.

Author

De Vitis, M., Mattioni, C., Mattana, E., Pritchard, H. W., Seal, C. E., Ulian, T., Cherubini, M., and Magrini, S.

Subjects
BRASSICACEAE, PLANT ecology, ENDANGERED plants, GERMINATION
Abstract

Plant autoecology and population genetics provide a perspective on the likelihood of natural regeneration, which is critical when designing conservation strategies for endangered species. The threatened coastal plant Malcolmia littorea (Brassicaceae) was sampled across its European distribution and studied for genetic diversity and seed fitness, with the aim of providing information for the conservation of isolated and declining populations., Nine microsatellite markers (five chloroplast and four nuclear) were analysed to assess population genetic diversity and structure and to conduct a spatial analysis using the software DIVA-GIS. Germination percentages and rates were assessed by incubating the seeds under eight constant temperatures (0-27 °C)., The genetic diversity was found to be similar among subpopulations (chloroplast H = 0.04-0.17; nuclear Ho = 0.20-0.37), with no correlation between subpopulation diversity and the area of occupancy (AOO). The subpopulations were found to be clustered in three genetic groups, and three of them were identified as conservation priorities due to their unique genetic composition. The germination study revealed a significant influence of the maternal environment and AOO on seed germination, with the smaller subpopulations showing lower germination percentages ( P < 0.05)., These results highlight the importance of obtaining information on isolated subpopulations through different experimental approaches ( e.g. seed germination plus population genetics) to enable planning of effective conservation actions. For M. littorea, seed collection for both in situ and ex situ conservation should take into account the local adaptation of the subpopulation and the genetic structure of the species. [ABSTRACT FROM AUTHOR]

Published
2018
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33. Effects of NaCl stress on seed germination and seedling development of Brassica insularis Moris (Brassicaceae).

Author

Santo, A., Mattana, E., Frigau, L., Marzo Pastor, A., Picher Morelló, M. C., Bacchetta, G., and Smit, C.

Subjects
*EFFECT of salt on plants, *BRASSICA seeds, *SEED development, *EFFECT of stress on plants, *PLANT populations
Abstract

Brassica insularis is a protected plant that grows on both coastal and inland cliffs in the western Mediterranean Basin. The objective of this study was to test if any variability exists in the salt stress response during seed germination and seedling development in this species relative to its provenance habitat., Variability among three populations in the salt stress effects on seed germination and recovery under different temperatures was evaluated. The effect of nebulisation of a salt solution on seedling development was evaluated between populations growing at different distances from the sea., Seeds of B. insularis could germinate at NaCl concentrations up to 200 m m. Seed viability was negatively affected by salt, and recovery ability decreased with increasing temperature or salinity. Inter-population variability was detected in salt response during the seed germination phase, as well as in seedling salt spray tolerance. The inland population seedlings had drastically decreased survival and life span and failed to survive to the end of the experiment. In contrast, at least 90% of the coastal seedlings survived, even when sprayed at the highest frequency with salt solution., This study allowed investigation of two natural factors, soil salinity and marine aerosols, widely present in the B. insularis habitat, and provided the first insights into ecology of this protected species and its distribution in the Mediterranean. These results might be useful in understanding the actual distributions of other species with the same ecology that experience these same abiotic parameters. [ABSTRACT FROM AUTHOR]

Published
2017
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36. Preliminary assessment of the genetic diversity in Lamyropsis microcephala (Asteraceae)

Author

Bacchetta, G, Fenu, G, Gentili, R, Mattana, E, Sgorbati, S, Sgorbati, S., GENTILI, RODOLFO FILIPPO, Bacchetta, G, Fenu, G, Gentili, R, Mattana, E, Sgorbati, S, Sgorbati, S., and GENTILI, RODOLFO FILIPPO

Abstract

Endangered species with small and isolated populations has been a key topic of conservation biology studies in the last decade. Lamyropsis microcephala is among the most significant narrow endemic plants in the Mediterranean region, lying on the Gennargentu massif of the Sardinia island (Italy). Due to heavy threat factors, this species has rapidly become threatened with extinction. The inter-simple sequence repeat technique was used to assess the genetic variation and structure of the individuals growing in the four remnant localities known to date, with the aim to implement further conservation strategies. Results indicated a degree of differentiation among the four subpopulations, in particular for the Fonni one. The estimates of Nei's genetic diversity (H) ranged from 0.0563 (Fonni) and 0.1104 (Bau 'e Laccos). Analysis of molecular variance values showed that 53% of the total variation may be attributed to the individuals within subpopulations, while 47% is due to differences among subpopulations (P < 0.001). Results also highlighted a scarce gene flow (Nm = 0.503). © 2013 Societá Botanica Italiana.

Published
2013

37. A new species of Aquilegia (Ranunculaceae) from Sardinia (Italy)

Author

Bacchetta, G., Brullo, S., Congiu, Angelino, Fenu, Giuseppe, Garrido, José L., Mattana, E., Bacchetta, G., Brullo, S., Congiu, Angelino, Fenu, Giuseppe, Garrido, José L., and Mattana, E.

Abstract

The new species Aquilegia cremnophila (Ranunculaceae) from the Italian island of Sardinia is here described and illustrated. It occurs in shady rocky crevices, near the upper parts of Mt. Corrasi (Supramontes Region), where it is a member of chasmophilous communities. This species is morphologically, phenologically, ecologically and genetically well differentiated from the other Sardinian taxa, showing some relationships mainly with A. nugorensis, an endemic species of Central-Eastern Sardinia. Its conservation status is examined. A key of all taxa present in Sardinia is also provided. © 2012 Magnolia Press.

Published
2012

38. Spatial genetic structure of Aquilegia taxa endemic to the island of Sardinia

Author

Garrido, José L., Fenu, Giuseppe, Mattana, E., Bacchetta, G., Garrido, José L., Fenu, Giuseppe, Mattana, E., and Bacchetta, G.

Abstract

Background and Aims The Mediterranean Basin is one of the most important regions for the Earths plant biodiversity; however, the scarcity of studies on fine scale patterns of genetic variation in this region is striking. Here, an assessment is made of the spatial genetic structure of all known locations of the three Sardinian endemic species of Aquilegia in order to determine the relative roles of gene flow and genetic drift as underlying evolutionary forces canalizing the divergence of Sardinian Aquilegia taxa, and to see if the spatial genetic structure found fits the current taxonomic differentiation of these taxa. Methods DNA from 89 individuals from all known locations of Aquilegia across Sardinia was analysed by means of amplified fragment length polymorphism (AFLP) markers. Both principal co-ordinates analysis (PCoA) and Bayesian clustering analyses were used to determine the spatial genetic structure irrespective of any taxonomic affiliation. Historical effects of gene flow and genetic drift were assessed by checking for the existence of isolation-by-distance patterns. Key Results STRUCTURE and PCoA analyses revealed a pattern of genetic variation geographically structured into four spatial genetic groups. No migrationdrift equilibrium was detected for Aquilegia in Sardinia, when analysed either as a whole or in individual groups. The scenario approached a Case III pattern sensu Hutchinson and Templeton, which is associated with extreme isolation conditions where genetic drift has historically played a dominant role over gene flow. Conclusions The pattern of genetic variation of Sardinian taxa of Aquilegia indicates that genetic drift has been historically more influential than gene flow on population structure of Sardinian species of Aquilegia. Limited seed dispersal and divergent selection imposed by habitat conditions have been probably the main causes reinforcing post-Pleistocene geographical isolation of Aquilegia populations. The spatial genetic struct

Published
2012

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