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12. Proline Exogenously Supplied or Endogenously Overproduced Induces Different Nutritional, Metabolic, and Antioxidative Responses in Transgenic Tobacco Exposed to Cadmium

Author

Borgo, Lucélia, Rabêlo, Flávio Henrique Silveira, Budzinski, Ilara Gabriela Frasson, Cataldi, Thaís Regiani, Ramires, Thiago Gentil, Schaker, Patricia Dayane Carvalho, Ribas, Alessandra Ferreira, Labate, Carlos Alberto, Lavres, José, Cuypers, Ann, and Azevedo, Ricardo Antunes

Published
2022
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15. Wood-based biochars produced at low pyrolysis temperatures are good carriers for a Trichoderma-based biopesticide.

Author

Debode, Jane, Viaene, Jarinda, Maenhout, Kristof, Joos, Lisa, França, Soraya C., Cuypers, Ann, and Vandecasteele, Bart

Subjects
BIOPESTICIDES, LOW temperatures, COLD storage, TRICHODERMA, FEEDSTOCK
Abstract

The goal was to investigate biochars' potential as carrier for commercial Trichoderma-based biopesticides, facilitating their application in soil or growing media. Thirty-five biochars produced from various feedstocks and pyrolysis temperatures were chemically characterized. Incubation and cold storage tests using a commercial Trichoderma-based biopesticide were done. Properties leading to good Trichoderma carrier capacity (TCC) are wood-based feedstocks and low pyrolysis temperatures (p < 0.001). Multivariate linear regression showed that TCC = exp (23.0 (± 2.21)–1.03 (± 0.25) *pH-H2O–0.94 (± 0.32) *inorganic carbon–0.10 (± 0.02) *total phosphorus + 0.0005 (± 0.0002) *water-soluble carbon). [ABSTRACT FROM AUTHOR]

Published
2024
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16. From crop left-overs to nutrient resource: growth-stimulating potential of biochar in nutrient solutions for wheat soilless cultivation systems.

Author

Kunnen, Kris, Ali, Md Muntasir, Lataf, Amine, Van Hees, May, Nauts, Robin, Horemans, Nele, Vandamme, Dries, and Cuypers, Ann

Subjects
WHEAT, HYDROPONICS, AGRICULTURE, CROP residues, WHEATGRASSES
Abstract

To reach the estimated food demands for 2050 in decreasingly suiting climates, current agricultural techniques have to be complemented by sustainably intensified practices. The current study repurposed wheat crop residues into biochar, and investigated its potential in different plant cultivation systems, including a hydroponic cultivation of wheat. Biochars resulting from varying pyrolysis parameters including feedstock composition (straw and chaff) and temperature (450°C and 600°C), were tested using a fast plant screening method. Biochar WBC450, produced from a combination of chaff and straw at 450°C, was selected for further plant experiments, and used in a static leaching experiment in the Arabidopsis thaliana cultivation medium. Increased pH and EC were observed, together with an increase of most macronutrient (K, Mg, P, S) and a decrease of most micronutrient (Fe, Mn, Zn) concentrations. Considering plant growth, application of biochar resulted in concentration-dependent effects in both tested plant species (A. thaliana and wheat). It improved the vegetative yield across all tested cultivation systems. Increases in K and S, and concentration-dependent decreases in Fe and Na content in wheatgrass were observed. Biochar influenced the reproduction of hydroponically cultivated wheat by increasing the number of spikes and the number of seeds per spike. The antioxidative capacity of wheat grass, and the seed sugar and starch contents remained unaffected by biochar application. This study contributes to innovation in soilless cultivation approaches of staple crops, within the framework of closing waste loops for a circular bioeconomy. [ABSTRACT FROM AUTHOR]

Published
2024
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31. Role of oxidative stress in the physiology of sensitive and resistant Amaranthus palmeri populations treated with herbicides inhibiting acetolactate synthase

Author

Eceiza, Mikel Vicente, Barco Antoñanzas, María, Gil Monreal, Miriam, Huybrechts, Michiel, Zabalza Aznárez, Ana, Cuypers, Ann, Royuela Hernando, Mercedes, Eceiza, Mikel Vicente, Barco-Antonanzas, Maria, Gil-Monreal, Miriam, HUYBRECHTS, Michiel, Zabalza, Ana, CUYPERS, Ann, Royuela, Mercedes, Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. Institute for Multidisciplinary Research in Applied Biology - IMAB, and Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa

Subjects
herbicide mode of action, acetolactate synthase, Amaranthus palmeri, oxidative stress, Plant Science, nicosulfuron
Abstract

The aim of the present study was to elucidate the role of oxidative stress in the mode of action of acetolactate synthase (ALS) inhibiting herbicides. Two populations of Amaranthus palmeri S. Watson from Spain (sensitive and resistant to nicosulfuron, due to mutated ALS) were grown hydroponically and treated with different rates of the ALS inhibitor nicosulfuron (one time and three times the field recommended rate). Seven days later, various oxidative stress markers were measured in the leaves: H2O2, MDA, ascorbate and glutathione contents, antioxidant enzyme activities and gene expression levels. Under control conditions, most of the analysed parameters were very similar between sensitive and resistant plants, meaning that resistance is not accompanied by a different basal oxidative metabolism. Nicosulfuron-treated sensitive plants died after a few weeks, while the resistant ones survived, independently of the rate. Seven days after herbicide application, the sensitive plants that had received the highest nicosulfuron rate showed an increase in H2O2 content, lipid peroxidation and antioxidant enzymatic activities, while resistant plants did not show these responses, meaning that oxidative stress is linked to ALS inhibition. A supralethal nicosulfuron rate was needed to induce a significant oxidative stress response in the sensitive population, providing evidence that the lethality elicited by ALS inhibitors is not entirely dependent on oxidative stress. This work was financed by the Public University of Navarre (Project UPNA20-6138) and the Spanish Ministry of Science and Innovation (2020 117723-RB-100). ME is the holder of a predoctoral fellowship of the Basque Government and he also received a mobility grant from the same Government. The authors would like to acknowledge G. Garijo, J. Encinas and C. Jiménez for technical assistance, and J. Torra (University of Lleida, CAT, Spain) for providing seeds.

Published
2023

32. Sulfur metabolism: actions for plant resilience and environmental adaptation

Author

Takahashi, Hideki, Marsolais, Frederic, CUYPERS, Ann, Kopriva, Stanislav, Takahashi, Hideki/0000-0001-8439-0533, Takahashi, Hideki, Marsolais, Frederic, CUYPERS, Ann, and Kopriva, Stanislav

Subjects
Heavy metal, redox, sulfur, transport, signaling, metabolism
Abstract

We thank the Journal of Experimental Botany for supporting our research community and providing us with an opportunity to present the updates in this Special Issue.

Published
2023

40. Dietary Sargassum fusiforme improves memory and reduces amyloid plaque load in an Alzheimer’s disease mouse model

Author

Bogie, Jeroen, Hoeks, Cindy, Schepers, Melissa, Tiane, Assia, Cuypers, Ann, Leijten, Frank, Chintapakorn, Yupyn, Suttiyut, Thiti, Pornpakakul, Surachai, Struik, Dicky, Kerksiek, Anja, Liu, Hong-Bing, Hellings, Niels, Martinez-Martinez, Pilar, Jonker, Johan W., Dewachter, Ilse, Sijbrands, Eric, Walter, Jochen, Hendriks, Jerome, Groen, Albert, Staels, Bart, Lütjohann, Dieter, Vanmierlo, Tim, and Mulder, Monique

Published
2019
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46. Cadmium and Oxidative Stress

Author

Cuypers, Ann, Remans, Tony, Jaco, Vangronsveld, Smeets, Karen, Kretsinger, Robert H., editor, Uversky, Vladimir N., editor, and Permyakov, Eugene A., editor

Published
2013
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47. Cadmium and Health Risks

Author

Nawrot, Tim S., Staessen, Jan A., Roels, Harry A., Cuypers, Ann, Smeets, Karen, Vangronsveld, Jaco, Kretsinger, Robert H., editor, Uversky, Vladimir N., editor, and Permyakov, Eugene A., editor

Published
2013
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