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Article

Abnormal physiological and molecular mutant phenotypes link chloroplast polynucleotide phosphorylase to the phosphorus deprivation response in Arabidopsis.

Plant physiology - 1 Oct 2009

Marchive Chloe, Yehudai-Resheff Shlomit, Germain Arnaud, Fei Zhangjun, Jiang Xingshan, Judkins Joshua, Wu Hong, Fernie Alisdair R, Fait Aaron, Stern David B

Abstract excerpt

A prominent enzyme in organellar RNA metabolism is the exoribonuclease polynucleotide phosphorylase (PNPase), whose reversible activity is governed by the nucleotide diphosphate-inorganic phosphate ratio. In Chlamydomonas reinhardtii, PNPase regulates chloroplast transcript accumulation in response to phosphorus (P) starvation, and PNPase expression is repressed by the response regulator PSR1 (for PHOSPHORUS...

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Identifiers

PMID: 19710229
DOI: 10.1104/pp.109.145144
PMCID: PMC2754633

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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