Search

Your search keyword '"Tjoelker, Mark"' showing total 584 results
Start Over "Tjoelker, Mark"
584 results on '"Tjoelker, Mark"'

3. Extreme heat increases stomatal conductance and drought‐induced mortality risk in vulnerable plant species

Author

Marchin, Renée M, Backes, Diana, Ossola, Alessandro, Leishman, Michelle R, Tjoelker, Mark G, and Ellsworth, David S

Subjects
Climate Change Impacts and Adaptation, Biological Sciences, Ecology, Plant Biology, Environmental Sciences, Clean Water and Sanitation, Droughts, Extreme Heat, Photosynthesis, Plant Leaves, Plant Stomata, Plant Transpiration, Water, Xylem, drought stress, heatwave, high temperature tolerance, leaf critical temperature, thermal safety margin, water deficit experiment, Biological sciences, Earth sciences, Environmental sciences
Abstract

Tree mortality during global-change-type drought is usually attributed to xylem dysfunction, but as climate change increases the frequency of extreme heat events, it is necessary to better understand the interactive role of heat stress. We hypothesized that some drought-stressed plants paradoxically open stomata in heatwaves to prevent leaves from critically overheating. We experimentally imposed heat (>40°C) and drought stress onto 20 broadleaf evergreen tree/shrub species in a glasshouse study. Most well-watered plants avoided lethal overheating, but drought exacerbated thermal damage during heatwaves. Thermal safety margins (TSM) quantifying the difference between leaf surface temperature and leaf critical temperature, where photosynthesis is disrupted, identified species vulnerability to heatwaves. Several mechanisms contributed to high heat tolerance and avoidance of damaging leaf temperatures-small leaf size, low leaf osmotic potential, high leaf mass per area (i.e., thick, dense leaves), high transpirational capacity, and access to water. Water-stressed plants had smaller TSM, greater crown dieback, and a fundamentally different stomatal heatwave response relative to well-watered plants. On average, well-watered plants closed stomata and decreased stomatal conductance (gs ) during the heatwave, but droughted plants did not. Plant species with low gs , either due to isohydric stomatal behavior under water deficit or inherently low transpirational capacity, opened stomata and increased gs under high temperatures. The current paradigm maintains that stomata close before hydraulic thresholds are surpassed, but our results suggest that isohydric species may dramatically increase gs (over sixfold increases) even past their leaf turgor loss point. By actively increasing water loss at high temperatures, plants can be driven toward mortality thresholds more rapidly than has been previously recognized. The inclusion of TSM and responses to heat stress could improve our ability to predict the vulnerability of different tree species to future droughts.

Published
2022

4. COSORE: A community database for continuous soil respiration and other soil‐atmosphere greenhouse gas flux data

Author

Bond‐Lamberty, Ben, Christianson, Danielle S, Malhotra, Avni, Pennington, Stephanie C, Sihi, Debjani, AghaKouchak, Amir, Anjileli, Hassan, Arain, M Altaf, Armesto, Juan J, Ashraf, Samaneh, Ataka, Mioko, Baldocchi, Dennis, Black, Thomas Andrew, Buchmann, Nina, Carbone, Mariah S, Chang, Shih‐Chieh, Crill, Patrick, Curtis, Peter S, Davidson, Eric A, Desai, Ankur R, Drake, John E, El‐Madany, Tarek S, Gavazzi, Michael, Görres, Carolyn‐Monika, Gough, Christopher M, Goulden, Michael, Gregg, Jillian, del Arroyo, Omar Gutiérrez, He, Jin‐Sheng, Hirano, Takashi, Hopple, Anya, Hughes, Holly, Järveoja, Järvi, Jassal, Rachhpal, Jian, Jinshi, Kan, Haiming, Kaye, Jason, Kominami, Yuji, Liang, Naishen, Lipson, David, Macdonald, Catriona A, Maseyk, Kadmiel, Mathes, Kayla, Mauritz, Marguerite, Mayes, Melanie A, McNulty, Steve, Miao, Guofang, Migliavacca, Mirco, Miller, Scott, Miniat, Chelcy F, Nietz, Jennifer G, Nilsson, Mats B, Noormets, Asko, Norouzi, Hamidreza, O’Connell, Christine S, Osborne, Bruce, Oyonarte, Cecilio, Pang, Zhuo, Peichl, Matthias, Pendall, Elise, Perez‐Quezada, Jorge F, Phillips, Claire L, Phillips, Richard P, Raich, James W, Renchon, Alexandre A, Ruehr, Nadine K, Sánchez‐Cañete, Enrique P, Saunders, Matthew, Savage, Kathleen E, Schrumpf, Marion, Scott, Russell L, Seibt, Ulli, Silver, Whendee L, Sun, Wu, Szutu, Daphne, Takagi, Kentaro, Takagi, Masahiro, Teramoto, Munemasa, Tjoelker, Mark G, Trumbore, Susan, Ueyama, Masahito, Vargas, Rodrigo, Varner, Ruth K, Verfaillie, Joseph, Vogel, Christoph, Wang, Jinsong, Winston, Greg, Wood, Tana E, Wu, Juying, Wutzler, Thomas, Zeng, Jiye, Zha, Tianshan, Zhang, Quan, and Zou, Junliang

Subjects
Climate Change Impacts and Adaptation, Environmental Sciences, Climate Action, Atmosphere, Carbon Dioxide, Ecosystem, Greenhouse Gases, Methane, Nitrous Oxide, Reproducibility of Results, Respiration, Soil, carbon dioxide, greenhouse gases, methane, open data, open science, soil respiration, Biological Sciences, Ecology, Biological sciences, Earth sciences, Environmental sciences
Abstract

Globally, soils store two to three times as much carbon as currently resides in the atmosphere, and it is critical to understand how soil greenhouse gas (GHG) emissions and uptake will respond to ongoing climate change. In particular, the soil-to-atmosphere CO2 flux, commonly though imprecisely termed soil respiration (RS ), is one of the largest carbon fluxes in the Earth system. An increasing number of high-frequency RS measurements (typically, from an automated system with hourly sampling) have been made over the last two decades; an increasing number of methane measurements are being made with such systems as well. Such high frequency data are an invaluable resource for understanding GHG fluxes, but lack a central database or repository. Here we describe the lightweight, open-source COSORE (COntinuous SOil REspiration) database and software, that focuses on automated, continuous and long-term GHG flux datasets, and is intended to serve as a community resource for earth sciences, climate change syntheses and model evaluation. Contributed datasets are mapped to a single, consistent standard, with metadata on contributors, geographic location, measurement conditions and ancillary data. The design emphasizes the importance of reproducibility, scientific transparency and open access to data. While being oriented towards continuously measured RS , the database design accommodates other soil-atmosphere measurements (e.g. ecosystem respiration, chamber-measured net ecosystem exchange, methane fluxes) as well as experimental treatments (heterotrophic only, etc.). We give brief examples of the types of analyses possible using this new community resource and describe its accompanying R software package.

Published
2020

8. Acclimation and adaptation components of the temperature dependence of plant photosynthesis at the global scale

Author

Kumarathunge, Dushan P, Medlyn, Belinda E, Drake, John E, Tjoelker, Mark G, Aspinwall, Michael J, Battaglia, Michael, Cano, Francisco J, Carter, Kelsey R, Cavaleri, Molly A, Cernusak, Lucas A, Chambers, Jeffrey Q, Crous, Kristine Y, De Kauwe, Martin G, Dillaway, Dylan N, Dreyer, Erwin, Ellsworth, David S, Ghannoum, Oula, Han, Qingmin, Hikosaka, Kouki, Jensen, Anna M, Kelly, Jeff WG, Kruger, Eric L, Mercado, Lina M, Onoda, Yusuke, Reich, Peter B, Rogers, Alistair, Slot, Martijn, Smith, Nicholas G, Tarvainen, Lasse, Tissue, David T, Togashi, Henrique F, Tribuzy, Edgard S, Uddling, Johan, Vårhammar, Angelica, Wallin, Göran, Warren, Jeffrey M, and Way, Danielle A

Subjects
Plant Biology, Biological Sciences, Environmental Sciences, Climate Change Impacts and Adaptation, Climate Action, Acclimatization, Carbon Dioxide, Cell Respiration, Electron Transport, Linear Models, Models, Biological, Photosynthesis, Plant Leaves, Plants, Ribulose-Bisphosphate Carboxylase, Temperature, AC(i) curves, climate of origin, global vegetation models, growth temperature, J(max), maximum carboxylation capacity, maximum electron transport rate, V-cmax, J max, V cmax, ACi curves, Agricultural and Veterinary Sciences, Plant Biology & Botany, Plant biology, Climate change impacts and adaptation, Ecological applications
Abstract

The temperature response of photosynthesis is one of the key factors determining predicted responses to warming in global vegetation models (GVMs). The response may vary geographically, owing to genetic adaptation to climate, and temporally, as a result of acclimation to changes in ambient temperature. Our goal was to develop a robust quantitative global model representing acclimation and adaptation of photosynthetic temperature responses. We quantified and modelled key mechanisms responsible for photosynthetic temperature acclimation and adaptation using a global dataset of photosynthetic CO2 response curves, including data from 141 C3 species from tropical rainforest to Arctic tundra. We separated temperature acclimation and adaptation processes by considering seasonal and common-garden datasets, respectively. The observed global variation in the temperature optimum of photosynthesis was primarily explained by biochemical limitations to photosynthesis, rather than stomatal conductance or respiration. We found acclimation to growth temperature to be a stronger driver of this variation than adaptation to temperature at climate of origin. We developed a summary model to represent photosynthetic temperature responses and showed that it predicted the observed global variation in optimal temperatures with high accuracy. This novel algorithm should enable improved prediction of the function of global ecosystems in a warming climate.

Published
2019

14. Wide climatic niche breadth and traits associated with climatic tolerance facilitate eucalypt occurrence in cities worldwide.

Author

Esperon‐Rodriguez, Manuel, Tjoelker, Mark G., Lenoir, Jonathan, Laugier, Bree, and Gallagher, Rachael V.

Subjects
*EUCALYPTUS, *CITIES & towns, *SPECIES diversity, *DROUGHT tolerance, *URBAN trees, WOOD density
Abstract

Aim: Eucalypts are important and popular urban tree species across cities worldwide. However, little is known about how their climatic niche breadth (CNB) and functional traits predict their success, and vulnerability, to current climate change in cities. We assessed the relationship between the CNB of eucalypts and key traits to understand their tolerance to climate change. Location: Global urban areas, 66 cities in 21 countries. Time period: 1981 to 2022. Major species studied: Fifty 'eucalypt' species belonging to the genera Eucalyptus, Angophora and Corymbia. Methods: We used the species' safety margin concept to determine cities where eucalypts were planted outside the limits of their CNB, as defined from the native range, considering two extreme variables, maximum temperature of the warmest month (MTWM) and precipitation of the driest month (PDM). We assessed correlations between functional traits (leaf δ13C, leaf dry mass, leaf length, leaf N per dry mass, wood density) and negative safety margins, indicative of tolerance to non‐native conditions. Results: In total, 42 species planted in 40 cities exceeded their safety margins for MTWM, while 43 species in 38 cities exceeded their safety margins for PDM. Within 24 cities, all species exceeded their native CNB for both MTWM and PDM. The cities of Atakpame (Togo), Chennai (India), Chongqing (China) and the US cities of Phoenix and Riverside had the highest richness of eucalypt species growing outside their native CNB. Broadly, species with wide CNB, small leaves, high δ13C, high leaf N per dry mass and high wood density were more likely to persist in cities where climatic conditions exceeded their native CNB. Main conclusions: Eucalypts occupy many cities experiencing climatic conditions outside their native CNB. Species with traits characteristic of heat and drought tolerance are more often planted in cities where climatic conditions may exceed their CNB native limits. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

19. AusTraits, a curated plant trait database for the Australian flora

Author

Falster, Daniel, Gallagher, Rachael, Wenk, Elizabeth H., Wright, Ian J., Indiarto, Dony, Andrew, Samuel C., Baxter, Caitlan, Lawson, James, Allen, Stuart, Fuchs, Anne, Monro, Anna, Kar, Fonti, Adams, Mark A., Ahrens, Collin W., Alfonzetti, Matthew, Angevin, Tara, Apgaua, Deborah M. G., Arndt, Stefan, Atkin, Owen K., Atkinson, Joe, Auld, Tony, Baker, Andrew, von Balthazar, Maria, Bean, Anthony, Blackman, Chris J., Bloomfield, Keith, Bowman, David M. J. S., Bragg, Jason, Brodribb, Timothy J., Buckton, Genevieve, Burrows, Geoff, Caldwell, Elizabeth, Camac, James, Carpenter, Raymond, Catford, Jane A., Cawthray, Gregory R., Cernusak, Lucas A., Chandler, Gregory, Chapman, Alex R., Cheal, David, Cheesman, Alexander W., Chen, Si-Chong, Choat, Brendan, Clinton, Brook, Clode, Peta L., Coleman, Helen, Cornwell, William K., Cosgrove, Meredith, Crisp, Michael, Cross, Erika, Crous, Kristine Y., Cunningham, Saul, Curran, Timothy, Curtis, Ellen, Daws, Matthew I., DeGabriel, Jane L., Denton, Matthew D., Dong, Ning, Du, Pengzhen, Duan, Honglang, Duncan, David H., Duncan, Richard P., Duretto, Marco, Dwyer, John M., Edwards, Cheryl, Esperon-Rodriguez, Manuel, Evans, John R., Everingham, Susan E., Farrell, Claire, Firn, Jennifer, Fonseca, Carlos Roberto, French, Ben J., Frood, Doug, Funk, Jennifer L., Geange, Sonya R., Ghannoum, Oula, Gleason, Sean M., Gosper, Carl R., Gray, Emma, Groom, Philip K., Grootemaat, Saskia, Gross, Caroline, Guerin, Greg, Guja, Lydia, Hahs, Amy K., Harrison, Matthew Tom, Hayes, Patrick E., Henery, Martin, Hochuli, Dieter, Howell, Jocelyn, Huang, Guomin, Hughes, Lesley, Huisman, John, Ilic, Jugoslav, Jagdish, Ashika, Jin, Daniel, Jordan, Gregory, Jurado, Enrique, Kanowski, John, Kasel, Sabine, Kellermann, Jürgen, Kenny, Belinda, Kohout, Michele, Kooyman, Robert M., Kotowska, Martyna M., Lai, Hao Ran, Laliberté, Etienne, Lambers, Hans, Lamont, Byron B., Lanfear, Robert, van Langevelde, Frank, Laughlin, Daniel C., Laugier-Kitchener, Bree-Anne, Laurance, Susan, Lehmann, Caroline E. R., Leigh, Andrea, Leishman, Michelle R., Lenz, Tanja, Lepschi, Brendan, Lewis, James D., Lim, Felix, Liu, Udayangani, Lord, Janice, Lusk, Christopher H., Macinnis-Ng, Cate, McPherson, Hannah, Magallón, Susana, Manea, Anthony, López-Martinez, Andrea, Mayfield, Margaret, McCarthy, James K., Meers, Trevor, van der Merwe, Marlien, Metcalfe, Daniel J., Milberg, Per, Mokany, Karel, Moles, Angela T., Moore, Ben D., Moore, Nicholas, Morgan, John W., Morris, William, Muir, Annette, Munroe, Samantha, Nicholson, Áine, Nicolle, Dean, Nicotra, Adrienne B., Niinemets, Ülo, North, Tom, O’Reilly-Nugent, Andrew, O’Sullivan, Odhran S., Oberle, Brad, Onoda, Yusuke, Ooi, Mark K. J., Osborne, Colin P., Paczkowska, Grazyna, Pekin, Burak, Guilherme Pereira, Caio, Pickering, Catherine, Pickup, Melinda, Pollock, Laura J., Poot, Pieter, Powell, Jeff R., Power, Sally A., Prentice, Iain Colin, Prior, Lynda, Prober, Suzanne M., Read, Jennifer, Reynolds, Victoria, Richards, Anna E., Richardson, Ben, Roderick, Michael L., Rosell, Julieta A., Rossetto, Maurizio, Rye, Barbara, Rymer, Paul D., Sams, Michael A., Sanson, Gordon, Sauquet, Hervé, Schmidt, Susanne, Schönenberger, Jürg, Schulze, Ernst-Detlef, Sendall, Kerrie, Sinclair, Steve, Smith, Benjamin, Smith, Renee, Soper, Fiona, Sparrow, Ben, Standish, Rachel J., Staples, Timothy L., Stephens, Ruby, Szota, Christopher, Taseski, Guy, Tasker, Elizabeth, Thomas, Freya, Tissue, David T., Tjoelker, Mark G., Tng, David Yue Phin, de Tombeur, Félix, Tomlinson, Kyle, Turner, Neil C., Veneklaas, Erik J., Venn, Susanna, Vesk, Peter, Vlasveld, Carolyn, Vorontsova, Maria S., Warren, Charles A., Warwick, Nigel, Weerasinghe, Lasantha K., Wells, Jessie, Westoby, Mark, White, Matthew, Williams, Nicholas S. G., Wills, Jarrah, Wilson, Peter G., Yates, Colin, Zanne, Amy E., Zemunik, Graham, and Ziemińska, Kasia

Published
2021
Full Text
View/download PDF

21. The fate of carbon in a mature forest under carbon dioxide enrichment

Author

Jiang, Mingkai, Medlyn, Belinda E., Drake, John E., Duursma, Remko A., Anderson, Ian C., Barton, Craig V. M., Boer, Matthias M., Carrillo, Yolima, Castañeda-Gómez, Laura, Collins, Luke, Crous, Kristine Y., De Kauwe, Martin G., dos Santos, Bruna M., Emmerson, Kathryn M., Facey, Sarah L., Gherlenda, Andrew N., Gimeno, Teresa E., Hasegawa, Shun, Johnson, Scott N., Kännaste, Astrid, Macdonald, Catriona A., Mahmud, Kashif, Moore, Ben D., Nazaries, Loïc, Neilson, Elizabeth H. J., Nielsen, Uffe N., Niinemets, Ülo, Noh, Nam Jin, Ochoa-Hueso, Raúl, Pathare, Varsha S., Pendall, Elise, Pihlblad, Johanna, Piñeiro, Juan, Powell, Jeff R., Power, Sally A., Reich, Peter B., Renchon, Alexandre A., Riegler, Markus, Rinnan, Riikka, Rymer, Paul D., Salomón, Roberto L., Singh, Brajesh K., Smith, Benjamin, Tjoelker, Mark G., Walker, Jennifer K. M., Wujeska-Klause, Agnieszka, Yang, Jinyan, Zaehle, Sönke, and Ellsworth, David S.

Published
2020
Full Text
View/download PDF

23. Phenotypic plasticity in agriculture and forestry

Author

Aspinwall, Michael J, Loik, Michael E, Resco de Dios, Victor, Tjoelker, Mark G, Payton, Paxton R, and Tissue, David T

Subjects
Genetics, Zero Hunger, Climate Action, Agriculture, Carbon Dioxide, Climate Change, Crops, Agricultural, Droughts, Efficiency, Forestry, Forests, Genetic Variation, Plants, acclimation, agriculture, forestry, genetic variation, physiology, Biological Sciences, Agricultural and Veterinary Sciences, Plant Biology & Botany
Abstract

Climate change threatens the ability of agriculture and forestry to meet growing global demands for food, fibre and wood products. Information gathered from genotype-by-environment interactions (G × E), which demonstrate intraspecific variation in phenotypic plasticity (the ability of a genotype to alter its phenotype in response to environmental change), may prove important for bolstering agricultural and forest productivity under climate change. Nonetheless, very few studies have explicitly quantified genotype plasticity-productivity relationships in agriculture or forestry. Here, we conceptualize the importance of intraspecific variation in agricultural and forest species plasticity, and discuss the physiological and genetic factors contributing to intraspecific variation in phenotypic plasticity. Our discussion highlights the need for an integrated understanding of the mechanisms of G × E, more extensive assessments of genotypic responses to climate change under field conditions, and explicit testing of genotype plasticity-productivity relationships. Ultimately, further investigation of intraspecific variation in phenotypic plasticity in agriculture and forestry may prove important for identifying genotypes capable of increasing or sustaining productivity under more extreme climatic conditions.

Published
2015

24. Utilizing intraspecific variation in phenotypic plasticity to bolster agricultural and forest productivity under climate change.

Author

Aspinwall, Michael J, Loik, Michael E, Resco de Dios, Victor, Tjoelker, Mark G, Payton, Paxton R, and Tissue, David T

Subjects
Plants, Crops, Agricultural, Carbon Dioxide, Efficiency, Agriculture, Forestry, Genetic Variation, Droughts, Climate Change, Forests, acclimation, agriculture, forestry, genetic variation, physiology, Plant Biology & Botany, Biological Sciences, Agricultural and Veterinary Sciences
Abstract

Climate change threatens the ability of agriculture and forestry to meet growing global demands for food, fibre and wood products. Information gathered from genotype-by-environment interactions (G × E), which demonstrate intraspecific variation in phenotypic plasticity (the ability of a genotype to alter its phenotype in response to environmental change), may prove important for bolstering agricultural and forest productivity under climate change. Nonetheless, very few studies have explicitly quantified genotype plasticity-productivity relationships in agriculture or forestry. Here, we conceptualize the importance of intraspecific variation in agricultural and forest species plasticity, and discuss the physiological and genetic factors contributing to intraspecific variation in phenotypic plasticity. Our discussion highlights the need for an integrated understanding of the mechanisms of G × E, more extensive assessments of genotypic responses to climate change under field conditions, and explicit testing of genotype plasticity-productivity relationships. Ultimately, further investigation of intraspecific variation in phenotypic plasticity in agriculture and forestry may prove important for identifying genotypes capable of increasing or sustaining productivity under more extreme climatic conditions.

Published
2015

31. Coordinated approaches to quantify long‐term ecosystem dynamics in response to global change

Author

LUO, YIQI, MELILLO, JERRY, NIU, SHULI, BEIER, CLAUS, CLARK, JAMES S, CLASSEN, AIMÉE T, DAVIDSON, ERIC, DUKES, JEFFREY S, EVANS, R DAVE, FIELD, CHRISTOPHER B, CZIMCZIK, CLAUDIA I, KELLER, MICHAEL, KIMBALL, BRUCE A, KUEPPERS, LARA M, NORBY, RICHARD J, PELINI, SHANNON L, PENDALL, ELISE, RASTETTER, EDWARD, SIX, JOHAN, SMITH, MELINDA, TJOELKER, MARK G, and TORN, MARGARET S

Subjects
Biological Sciences, Climate Action, climate change, data assimilation, earth system, experimentation, global change, process study, terrestrial ecosystems, Environmental Sciences, Ecology, Biological sciences, Earth sciences, Environmental sciences
Abstract

Many serious ecosystem consequences of climate change will take decades or even centuries to emerge. Long-term ecological responses to global change are strongly regulated by slow processes, such as changes in species composition, carbon dynamics in soil and by long-lived plants, and accumulation of nutrient capitals. Understanding and predicting these processes require experiments on decadal time scales. But decadal experiments by themselves may not be adequate because many of the slow processes have characteristic time scales much longer than experiments can be maintained. This article promotes a coordinated approach that combines long-term, large-scale global change experiments with process studies and modeling. Long-term global change manipulative experiments, especially in high-priority ecosystems such as tropical forests and high-latitude regions, are essential to maximize information gain concerning future states of the earth system. The long-term experiments should be conducted in tandem with complementary process studies, such as those using model ecosystems, species replacements, laboratory incubations, isotope tracers, and greenhouse facilities. Models are essential to assimilate data from long-term experiments and process studies together with information from long-term observations, surveys, and space-for-time studies along environmental and biological gradients. Future research programs with coordinated long-term experiments, process studies, and modeling have the potential to be the most effective strategy to gain the best information on long-term ecosystem dynamics in response to global change.

Published
2011

32. Climate, soil and plant functional types as drivers of global fine-root trait variation

Author

Freschet, Grégoire T., Valverde-Barrantes, Oscar J., Tucker, Caroline M., Craine, Joseph M., McCormack, M. Luke, Violle, Cyrille, Fort, Florian, Blackwood, Christopher B., Urban-Mead, Katherine R., Iversen, Colleen M., Bonis, Anne, Comas, Louise H., Cornelissen, Johannes H. C., Dong, Ming, Guo, Dali, Hobbie, Sarah E., Holdaway, Robert J., Kembel, Steven W., Makita, Naoki, Onipchenko, Vladimir G., Picon-Cochard, Catherine, Reich, Peter B., de la Riva, Enrique G., Smith, Stuart W., Soudzilovskaia, Nadejda A., Tjoelker, Mark G., Wardle, David A., and Roumet, Catherine

Published
2017

35. Circadian rhythms regulate the environmental responses of net CO2 exchange in bean and cotton canopies

Author

Resco de Dios, Víctor, Gessler, Arthur, Ferrio, Juan Pedro, Alday, Josu G., Bahn, Michael, del Castillo, Jorge, Devidal, Sébastien, García-Muñoz, Sonia, Kayler, Zachary, Landais, Damien, Martín-Gómez, Paula, Milcu, Alexandru, Piel, Clément, Pirhofer-Walzl, Karin, Ravel, Olivier, Salekin, Serajis, Tissue, David T., Tjoelker, Mark G., Voltas, Jordi, and Roy, Jacques

Published
2017
Full Text
View/download PDF

38. Differential nighttime decreases in leaf respiratory CO2‐efflux and O2‐uptake.

Author

Bruhn, Dan, Noguchi, Ko, Griffin, Kevin L., and Tjoelker, Mark G.

Subjects
RESPIRATION in plants, PLANT ecophysiology, BOTANY, PLANT physiology, RESPIRATORY quotient
Abstract

This article examines the changes in leaf respiration during the night, specifically focusing on the decrease in leaf respiratory O2-uptake and CO2-efflux. The authors analyze data from various studies and find that these decreases indicate a decrease in leaf mitochondrial electron transport and ATP demand. The article emphasizes the need for further research to understand the underlying mechanisms and species-specific differences in nocturnal changes in leaf respiration. The authors also discuss the implications of changes in the respiratory quotient (RQ), suggesting that the relative composition of respiratory substrates may shift during the early hours of the dark period. They highlight the importance of studying factors that affect RQ, such as substrate composition and demand for respiratory intermediates. Overall, this information is valuable for understanding the relationship between environmental and metabolic regulation of respiration and its impact on carbon uptake. [Extracted from the article]

Published
2024
Full Text
View/download PDF

42. REPLY TO ADAMS ET AL. : Empirical versus process-based approaches to modeling temperature responses of leaf respiration

Author

Heskel, Mary A., Atkin, Owen K., O’Sullivan, Odhran S., Reich, Peter, Tjoelker, Mark G., Weerasinghe, Lasantha K., Penillard, Aurore, Egerton, John J. G., Creek, Danielle, Bloomfield, Keith J., Xiang, Jen, Sinca, Felipe, Stangl, Zsofia R., Martinez-de la Torre, Alberto, Griffin, Kevin L., Huntingford, Chris, Hurry, Vaughan, Meir, Patrick, and Turnbull, Matthew H.

Published
2016

50. Mark G. Tjoelker.

Subjects
*CLIMATE change, *JACK pine, *CAREER development, *GLOBAL environmental change
Abstract

An interview with Mark G. Tjoelker, Professor at the Hawkesbury Institute for the Environment at Western Sydney University is presented. He was motivated to do research in the human-driven environmental change on ecosystem. Tjoelker talks about his favorite plant which is the Pinus banksiana species, a jack pine that is distributed throughout North America.

Published
2019
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results