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Light promotion of hypocotyl gravitropism of a starch-deficient tobacco mutant correlates with plastid enlargement and sedimentation.

Plant physiology - 1 Feb 1998

Vitha S, Yang M, Kiss J Z, Sack F D

Abstract excerpt

Dark-grown hypocotyls of a starch-deficient mutant (NS458) of tobacco (Nicotiana sylvestris) lack amyloplasts and plastid sedimentation, and have severely reduced gravitropism. However, gravitropism improved dramatically when NS458 seedlings were grown in the light. To determine the extent of thi...

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Darkness
Hypocotyl
Light
Mutation
Nicotiana
Plants, Toxic

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PMID: 9490754
DOI: 10.1104/pp.116.2.495
PMCID: PMC35106

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026. Prepared record publication-9490754-2026-08-31.1. Manifest publication-graph-cohort-2026-08-31.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 31 Aug 2026.

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