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The tissue-specific accumulation of PIP aquaporins of a particular heteromeric composition is the part of the maize response to mycorrhiza and drought

ABSTRACT: We examined the hypothesis that regulation of plant plasma membrane aquaporins (PIP) under mycorrhiza and / or drought may operate by altering the accumulation of heteromers of different subunit composition. Variation in the ratio of PIP1 and PIP2 monomers has recently been proposed as a novel regulation mechanism, although it has not yet been examined when a mycorrhizal partner is involved. As we showed, the variation of PIPs and their accumulation patterns were complementary in roots and leaves, suggesting systemic coordination. It can be further altered by mycorrhiza, acting as a positive feedback on stomatal conductance and faster recovery

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Zea Mays (maize)

TISSUE(S): Plant Cell, Root, Leaf

SUBMITTER: Ewelina Paluch-Lubawa

LAB HEAD: Władysław Polcyn

PROVIDER: PXD046819 | Pride | 2025-05-06

REPOSITORIES: Pride

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Tissue-specific accumulation of PIP aquaporins of a particular heteromeric composition is part of the maize response to mycorrhiza and drought.

Paluch-Lubawa Ewelina E Polcyn Władysław W

Scientific reports 20240917 1

The systemic coordination of accumulation of plasma membrane aquaporins (PIP) was investigated in this study in relation to mycorrhized maize response to a rapid development of severe drought followed by rewatering. In non-mycorrhizal roots, drought led to a drop in PIP abundance, followed by a transient increase under rewatering, whereas leaves showed an opposite pattern. In contrast, mycorrhiza contributed to maintenance of high and stable levels of PIPs in both plant organs after an initial i ...[more]

PMID: 39289494

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