TY - JOUR
T1 - Non-stomatal limitation of photosynthesis by soil salinity
AU - Pan, Ting
AU - Liu, Minmin
AU - Kreslavski, Vladimir D.
AU - Zharmukhamedov, Sergey K.
AU - Nie, Chenrong
AU - Yu, Min
AU - Kuznetsov, Vladimir V.
AU - Allakhverdiev, Suleyman I.
AU - Shabala, Sergey
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (31870249, 31902017, 31672228), Ministry of Science and Technology of China (CB02-07, 2018YFD0201203), International Science and Technology Cooperation Base of Guangdong Province (163-2018-XMZC-0001-05-0049), the Provincial National Science Foundation of Guangdong Province (2016A030313379), the National Distinguished Expert Project (WQ20174400441), the Science and Technology Project of Guangdong Province (2018A050506085, 2017-1649), Department of Education of Guangdong Province (2016QTLXXM_30), Foshan Science and Technology Platform (20161201010027), Australian Research Council (DP 170100430) and the Russian Foundation for Basic Research (Nos: 17-04-01289; 20-04-00607).
Publisher Copyright:
© 2020 Taylor & Francis Group, LLC.
PY - 2021/3/11
Y1 - 2021/3/11
N2 - Soil salinity is a major threat to agricultural sustainability and a global food security. Until now, most research has concentrated around stomatal limitation to photosynthesis, while non-stomatal limitations receiving much less attention. This work summarizes the current knowledge of impact of salinity on chloroplast metabolism and operation and finding viable solutions to minimize it. The major topics covered are: (1) the key targets of the photosynthetic apparatus under salt stress; (2) a tolerance of PSII to salt stress and its repair; (3) salinity effects on biochemistry of CO2 fixation and its regulation; (4) ionic requirements for optimal operation of chloroplasts; and (5) ion transport systems in chloroplasts that optimize chloroplast performance under hostile saline conditions. We show that enhancing plant capacity for protection by modifying PSI cyclic electron transport, redistribution of electron transport between photosystems, thylakoid membrane composition and photosynthetic antioxidant enzymes activity may be a promising way to improve tolerance to salt stress under real-field condition. It is concluded that revealing the molecular nature of chloroplast ion transporters and understanding the modes of their operation will ensure the future sustainability of the world agriculture and the prospects of biological phytoremediation of salinized land via using salt-tolerant crop germplasm.
AB - Soil salinity is a major threat to agricultural sustainability and a global food security. Until now, most research has concentrated around stomatal limitation to photosynthesis, while non-stomatal limitations receiving much less attention. This work summarizes the current knowledge of impact of salinity on chloroplast metabolism and operation and finding viable solutions to minimize it. The major topics covered are: (1) the key targets of the photosynthetic apparatus under salt stress; (2) a tolerance of PSII to salt stress and its repair; (3) salinity effects on biochemistry of CO2 fixation and its regulation; (4) ionic requirements for optimal operation of chloroplasts; and (5) ion transport systems in chloroplasts that optimize chloroplast performance under hostile saline conditions. We show that enhancing plant capacity for protection by modifying PSI cyclic electron transport, redistribution of electron transport between photosystems, thylakoid membrane composition and photosynthetic antioxidant enzymes activity may be a promising way to improve tolerance to salt stress under real-field condition. It is concluded that revealing the molecular nature of chloroplast ion transporters and understanding the modes of their operation will ensure the future sustainability of the world agriculture and the prospects of biological phytoremediation of salinized land via using salt-tolerant crop germplasm.
KW - chloroplast
KW - ion transporters
KW - Photosystems I and II
UR - http://www.scopus.com/inward/record.url?scp=85081331339&partnerID=8YFLogxK
U2 - 10.1080/10643389.2020.1735231
DO - 10.1080/10643389.2020.1735231
M3 - Review article
AN - SCOPUS:85081331339
SN - 1064-3389
VL - 51
SP - 791
EP - 825
JO - Critical Reviews in Environmental Science and Technology
JF - Critical Reviews in Environmental Science and Technology
IS - 8
ER -