NDLI: SGR2, a phospholipase-like protein, and ZIG/SGR4, a SNARE, are involved in the shoot gravitropism of Arabidopsis.

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SGR2, a phospholipase-like protein, and ZIG/SGR4, a SNARE, are involved in the shoot gravitropism of Arabidopsis.

Content Provider	Semantic Scholar
Author	Kato, Takehide Morita, Miyo Terao Fukaki, Hidehiro Yamauchi, Yoshiro Uehara, Michiko Niihama, Mitsuru Tasaka, Masao
Copyright Year	2002
Abstract	In higher plants, the shoot and the root generally show negative and positive gravitropism, respectively. To elucidate the molecular mechanisms involved in gravitropism, we have isolated many shoot gravitropism mutants in Arabidopsis. The sgr2 and zig/sgr4 mutants exhibited abnormal gravitropism in both inflorescence stems and hypocotyls. These genes probably are involved in the early step(s) of the gravitropic response. The sgr2 mutants also had misshapen seed and seedlings, whereas the stem of the zig/sgr4 mutants elongated in a zigzag fashion. The SGR2 gene encodes a novel protein that may be part of a gene family represented by bovine phosphatidic acid-preferring phospholipase A1 containing a putative transmembrane domain. This gene family has been reported only in eukaryotes. The ZIG gene was found to encode AtVTI11, a protein that is homologous with yeast VTI1 and is involved in vesicle transport. Our observations suggest that the two genes may be involved in a vacuolar membrane system that affects shoot gravitropism.
Starting Page	33
Ending Page	46
Page Count	14
File Format	PDF HTM / HTML
DOI	10.1105/tpc.010215
PubMed reference number	11826297
Journal	Medline
Volume Number	14
Issue Number	1
Alternate Webpage(s)	http://www.plantcell.org/content/plantcell/14/1/33.full.pdf
Alternate Webpage(s)	http://www.plantcell.org/content/14/1/33.full.pdf
Alternate Webpage(s)	https://doi.org/10.1105/tpc.010215
Journal	The Plant cell
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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