Countering elevated CO2 induced Fe and Zn reduction in Arabidopsis seeds

Bibliographische Detailangaben
Veröffentlicht in:	The New phytologist. - 1979. - 235(2022), 5 vom: 14. Sept., Seite 1796-1806
1. Verfasser:	Sun, Peng (VerfasserIn)
Weitere Verfasser:	Isner, Jean-Charles, Coupel-Ledru, Aude, Zhang, Qi, Pridgeon, Ashley J, He, Yaqian, Menguer, Paloma K, Miller, Anthony J, Sanders, Dale, Mcgrath, Steve P, Noothong, Fonthip, Liang, Yun-Kuan, Hetherington, Alistair M
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2022
Zugriff auf das übergeordnete Werk:	The New phytologist
Schlagworte:	Journal Article Research Support, Non-U.S. Gov't Arabidopsis thaliana CO2 signalling pathway Zn and Fe alpha carbonic anhydrases stomatal function Arabidopsis Proteins Carbon Dioxide 142M471B3J mehr... Abscisic Acid 72S9A8J5GW Zinc J41CSQ7QDS

Beschreibung
Zusammenfassung:	© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation. 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
Beschreibung:	Date Completed 03.08.2022 Date Revised 22.03.2023 published: Print-Electronic Citation Status MEDLINE
ISSN:	1469-8137
DOI:	10.1111/nph.18290