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Article

PhEXPA1, a Petunia hybrida expansin, is involved in cell wall metabolism and in plant architecture specification.

Plant signaling & behavior - 1 Dec 2011

Dal Santo Silvia, Fasoli Marianna, Cavallini Erika, Tornielli Giovanni Battista, Pezzotti Mario, Zenoni Sara

Abstract excerpt

Expansins are wall-loosening proteins that induce wall stress relaxation and irreversible wall extension in a pH-dependent manner. Despite a substantial body of work has been performed on the characterization of many expansins genes in different plant species, the knowledge about their precise biological roles during plant development remains scarce. To yield insights into the expansion process in Petunia...

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Source

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Identifiers

PMID: 22105031
DOI: 10.4161/psb.6.12.18110
PMCID: PMC3337199

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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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PhEXPA1, a Petunia hybrida expansin, is involved in cell wall metabolism and in plant architecture specification.PMID 22105031Read ↗

Overexpression of PhEXPA1 increases cell size, modifies cell wall polymer composition and affects the timing of axillary meristem development in Petunia hybrida.Semantic proximity Read ↗

Downregulation of the Petunia hybrida alpha-expansin gene PhEXP1 reduces the amount of crystalline cellulose in cell walls and leads to phenotypic changes in petal limbs.Semantic proximity Read ↗

Two Expansin Genes, AtEXPA4 and AtEXPB5, Are Redundantly Required for Pollen Tube Growth and AtEXPA4 Is Involved in Primary Root Elongation in Arabidopsis thaliana.Semantic proximity Read ↗

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RhEXPA4, a rose expansin gene, modulates leaf growth and confers drought and salt tolerance to Arabidopsis.Semantic proximity Read ↗

EXPANSIN15 is involved in flower and fruit development in Arabidopsis.Semantic proximity Read ↗

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