Countering elevated CO 2 induced Fe and Zn reduction in Arabidopsis seeds
2022
Sun, Peng | Isner, Jean‐charles | Coupel‐ledru, Aude | Zhang, Qi | Pridgeon, Ashley J. | He, Yaqian | Menguer, Paloma | Miller, Anthony | Sanders, Dale | Mcgrath, Steve | Noothong, Fonthip | Liang, Yun‐kuan | Hetherington, Alistair | Wuhan University [China] | University of Bristol [Bristol] | Écophysiologie des Plantes sous Stress environnementaux (LEPSE) ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) | Universidade Federal do Rio Grande do Sul [Porto Alegre] (UFRGS) | John Innes Centre [Norwich] ; Biotechnology and Biological Sciences Research Council (BBSRC) | Rothamsted Research ; Biotechnology and Biological Sciences Research Council (BBSRC) | School of Biological Sciences [Bristol] ; University of Bristol [Bristol] | UK Biotechnology and Biological Sciences Research Council (BBSRC), grant no. BB/N001168/1 and the Leverhulme Trust | National Natural Science Foundation of China under grant no. 31770282 | UK Biotechnology and Biological Sciences Research Council for a PhD studentship funded through the South West Biosciences Doctoral Training Partnership (training grant reference: BB/M009122/1) | Marie Curie Fellowship (MSCA-IF H2020) | CAPES Foundation within the Ministry of Education in Brazil programme `Science without Borders' | grants BB/P004474/1, BB/J00PR9796 and BB/J000PR9799 from the BBSRC and the John Innes Foundation
International audience
Mostrar más [+] Menos [-]Inglés. Growth at increased concentrations of CO2 induces a reduction in seed zinc (Zn) and iron (Fe). Using Arabidopsis thaliana, we investigated whether this could be mitigated by reducing the elevated CO2-induced decrease in transpiration. We used an infrared imaging-based screen to isolate mutants in At1g08080 that encodes ALPHA CARBONIC ANHYDRASE 7 (ACA7). aca7 mutant alleles display wild-type (WT) responses to abscisic acid (ABA) and light but are compromised in their response to elevated CO2. ACA7 is expressed in guard cells. When aca7 mutants are grown at 1000 ppm CO2 they exhibit higher transpiration and higher seed Fe and Zn content than WT grown under the same conditions. Our data show that by increasing transpiration it is possible to partially mitigate the reduction in seed Fe and Zn content when Arabidopsis is grown at elevated CO2.
Mostrar más [+] Menos [-]Palabras clave de AGROVOC
Información bibliográfica
Este registro bibliográfico ha sido proporcionado por Institut national de la recherche agronomique