AtCYT-INV1, a neutral invertase, is involved in osmotic stress-induced inhibition on lateral root growth in Arabidopsis

AtCYT-INV1, a neutral invertase, is involved in osmotic stress-induced inhibition on lateral root... Neutral/Alkaline invertases are unique to plant and photosynthetic bacteria. The function of Neutral/Alkaline invertases in plant development is not clear so far. In this study, we isolated an Arabidopsis (Col-0) mutant insensitive to osmotic stress-induced inhibition on lateral root growth. Map-based cloning reveals that a neutral invertase gene (AtCYT-INV1) was point-mutated. The mutant Atcyt-inv1 showed short primary root, smaller size of leaves and siliques, and promotion of the reproductive compared to the wild type (WT). Carbohydrate measurement showed that sucrose is accumulated and glucose is reduced in the mutant Atcyt-inv1 under normal and 3% mannitol treatments. Taken together, AtCYT-INV1 plays multiple roles in plant development and is involved in osmotic stress-induced inhibition on lateral root growth by controlling the concentration of hexose in cells. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

AtCYT-INV1, a neutral invertase, is involved in osmotic stress-induced inhibition on lateral root growth in Arabidopsis

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 2007 by Springer Science+Business Media B.V.
Subject
Life Sciences; Plant Pathology; Biochemistry, general; Plant Sciences
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1007/s11103-007-9177-4
Publisher site
See Article on Publisher Site

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