Potassium deficiency stress reduces Rubisco activity in Brassica napus leaves by subcellular acidification decreasing photosynthetic rate.

Potassium Deficiency Ribulose-Bisphosphate Carboxylase / metabolism Brassica napus / metabolism Photosynthesis / physiology Plants / metabolism Plant Leaves / metabolism Hydrogen-Ion Concentration Carbon Dioxide
Brassica napus Photosynthesis Potassium Rubisco Subcellular pH regulation

Journal

Plant physiology and biochemistry : PPB
ISSN: 1873-2690
Titre abrégé: Plant Physiol Biochem
Pays: France
ID NLM: 9882449

Informations de publication

Date de publication:
Aug 2023
Historique:
received: 17 02 2023
revised: 17 07 2023
accepted: 24 07 2023
medline: 14 8 2023
pubmed: 1 8 2023
entrez: 31 7 2023
Statut: ppublish

Résumé

Under potassium (K) deficiency photosynthetic carboxylation capacities are limited, affecting the photosynthetic rate of plants. However, it is not clear how ionic K within plants regulates carboxylation capacities. Therefore, the photosynthetic rate (A), ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco, EC 4.1.1.39) characteristics, and cytoplasmic pH of Brassica napus leaves with different K levels were measured to evaluate the effects of K on the carboxylation capacity by regulating subcellular pH. The results showed that biochemical limitation dominates the decrease of A. There was a close positive correlation between A and the Rubisco maximum carboxylation rate (V

Identifiants

DOI: 10.1016/j.plaphy.2023.107912 PMID: 37523826
pubmed: 37523826
pii: S0981-9428(23)00423-0
doi: 10.1016/j.plaphy.2023.107912
pii:
doi:

Substances chimiques

Ribulose-Bisphosphate Carboxylase EC 4.1.1.39
Carbon Dioxide 142M471B3J

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

107912

Informations de copyright

Copyright © 2023. Published by Elsevier Masson SAS.

Déclaration de conflit d'intérêts

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Auteurs

Wenshi Hu (W)

College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China; Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Wuhan, 430062, China.

Hehe Gu (H)

College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.

Kunjiao Wang (K)

College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.

Zhifeng Lu (Z)

College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.

Xiaokun Li (X)

College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.

Rihuan Cong (R)

College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.

Tao Ren (T)

College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China. Electronic address: rentao@mail.hzau.edu.cn.

Jianwei Lu (J)

College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.

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Classifications MeSH

questionsmedicales.fr › Maladies métaboliques et nutritionnelles › Troubles nutritionnels › Malnutrition › Maladies de carence › Potassium, carence › Potassium deficiency stress reduces Rubisco...
questionsmedicales.fr › Acides aminés, peptides et protéines › Protéines › Protéines végétales › Protéines chloroplastiques › Ribulose bisphosphate carboxylase › Potassium deficiency stress reduces Rubisco...
questionsmedicales.fr › Eucaryotes › Viridiplantae › Streptophyta › Embryophyta › Tracheobionta › Magnoliopsida › Brassicaceae › Brassica › Brassica napus › Potassium deficiency stress reduces Rubisco...
questionsmedicales.fr › Phénomènes physiologiques des plantes › Photosynthèse › Potassium deficiency stress reduces Rubisco...
questionsmedicales.fr › Eucaryotes › Plantes › Potassium deficiency stress reduces Rubisco...
questionsmedicales.fr › Structures de plante › Parties aériennes de plante › Feuilles de plante › Potassium deficiency stress reduces Rubisco...
questionsmedicales.fr › Phénomènes chimiques › Concentration en ions d'hydrogène › Potassium deficiency stress reduces Rubisco...
questionsmedicales.fr › Produits chimiques inorganiques › Composés de l'oxygène › Oxydes › Dioxyde de carbone › Potassium deficiency stress reduces Rubisco...