Cited by 37Plant Stress Responses and TolerancePlant nutrient uptake and metabolismATP Synthase and ATPases Research

The DOI matches its Crossref record; 58 of the 58 references it cites were found in a registry or an index.

Congruence between PM H+-ATPase and NADPH oxidase during root growth: a necessary probability

Majumdar, Arkajo, Kar, Rup Kumar·2018·Protoplasma

Abstract

Plasma membrane (PM) H+-ATPase and NADPH oxidase (NOX) are two key enzymes responsible for cell wall relaxation during elongation growth through apoplastic acidification and production of ˙OH radical via O 2˙-, respectively. Our experiments revealed a putative feed-forward loop between these enzymes in growing roots of Vigna radiata (L.) Wilczek seedlings. Thus, NOX activity was found to be dependent on proton gradient generated across PM by H+-ATPase as evident from pharmacological experiments using carbonyl cyanide m-chlorophenylhydrazone (CCCP; protonophore) and sodium ortho-vanadate (PM H+-ATPase inhibitor). Conversely, H+-ATPase activity retarded in response to different ROS scavengers [CuCl 2, N, N' -dimethylthiourea (DMTU) and catalase] and NOX inhibitors [ZnCl 2 and diphenyleneiodonium (DPI)], while H 2 O 2 promoted PM H+-ATPase activity at lower concentrations. Repressing effects of Ca+2 antagonists (La+3 and EGTA) on the activity of both the enzymes indicate its possible mediation. Since, unlike animal NOX, the plant versions do not possess proton channel activity, harmonized functioning of PM H+-ATPase and NOX appears to be justified. Plasma membrane NADPH oxidase and H+-ATPase are functionally synchronized and they work cooperatively to maintain the membrane electrical balance while mediating plant cell growth through wall relaxation.

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Crossref · 10.1007/s00709-018-1217-1

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Metadata

Authors
Majumdar, A., & Kar, R. K.
Affiliations
Visva-Bharati University (IN)
Corresponding author
Kar, Rup Kumar
Venue
Protoplasma
Published
2018-02-12
Volume
255
Issue
4
Pages
1129-1137
ISSN
  • 0033-183X (ISSN-L)
  • 1615-6102
OpenAlex
W2789128986
Cited by
37
References
58
Citations by year
2025: 5 · 2024: 4 · 2023: 5 · 2022: 5 · 2021: 9 · 2020: 5 · 2019: 2 · 2018: 2
FWCI
3.98
Type
journal article
Language
en
Open access
closed
Locations
  • PROTOPLASMA (publishedVersion)
  • PubMed (publishedVersion)
Funders
University Grants Commission, New Delhi, India (F. No. 25-1/2014-15(BSR)/220/2009/(BSR))
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant nutrient uptake and metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › ATP Synthase and ATPases Research
Keywords
plasma membrane H+-ATPase, NADPH oxidase, root elongation, feed-forward loop, reactive oxygen species, hydrogen peroxide, calcium signaling, mungbean, diphenyleneiodonium, sodium orthovanadate
MeSH terms
Cell Membrane, Proton-Translocating ATPases, Plant Roots, NADPH Oxidases

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