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著者 Kawakatsu,T., Taramino,G., Itoh,J., Allen,J., Sato,Y., Hong,S.-K., Yule,R., Nagasawa,N., Kojima,M., Kusaba,M., Sakakibara,H., Sakai,H. and Nagato,Y.
タイトル PLASTOCHRON3/GOLIATH encodes a glutamate carboxypeptidase required for proper development in rice
Abstract:
Most aerial parts of the plant body are products of the continuous activity of the shoot apical meristem (SAM). Leaves are the major component of the aerial plant body, and their temporal and spatial distribution mainly determines shoot architecture. Here we report the identification of the rice gene PLASTOCHRON3 (PLA3)/GOLIATH (GO) that regulates various developmental processes including the rate of leaf initiation (the plastochron). PLA3/GO encodes a glutamate carboxypeptidase, which is thought to catabolize small acidic peptides and produce small signaling molecules. pla3 exhibits similar phenotypes to pla1 and pla2- a shortened plastochron, precocious leaf maturation and rachis branch-to-shoot conversion in the reproductive phase. However, in contrast to pla1 and pla2, pla3 showed pleiotropic phenotypes including enlarged embryo, seed vivipary, defects in SAM maintenance and aberrant leaf morphology. Consistent with these pleiotropic phenotypes, PLA3 is expressed in the whole plant body, and is involved in plant hormone homeostasis. Double mutant analysis revealed that PLA1, PLA2 and PLA3 are regulated independently but function redundantly. Our results suggest that PLA3 modulates various signaling pathways associated with a number of developmental processes.
掲載誌 Plant J.
Country Japan
刊数 58（6）
ページ 1028-1040
発刊年 2009
PubMed ID 19228340
PubMed Central ID -
DOI 10.1111/j.1365-313X.2009.03841.x
URL -
関連情報
遺伝子 GO PLA1 PLA2
INSD AB447403
系統 野生イネ
コアコレクション 		-
突然変異系統(遺伝研 Collection) -
種子不稔系統 -
致死変異体系統 -
組織別発生段階
- 突然変異系統(遺伝子) 		-
栽培イネ品種(遺伝研 Collection) -
組織別発生段階 -
/rice/oryzabase