EFFECT OF MUTATIONS IN THE PINHEAD GENE OF ARABIDOPSIS ON THE FORMATION OF SHOOT APICAL MERISTEMS
EFFECT OF MUTATIONS IN THE PINHEAD GENE OF ARABIDOPSIS ON THE FORMATION OF SHOOT APICAL MERISTEMS
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DOI：
10.1002/dvg.1020160409
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发表时间：
1995-01-01
期刊：
影响因子：
--
通讯作者：
BARTON, MK
中科院分区：
文献类型：
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作者：
MCCONNELL, JR;BARTON, MK
被子植物的初生芽顶分生组织是在胚胎发生过程中形成的。侧枝顶端分生组织胚后在叶腋产生。拟南芥PINHEAD基因座的隐性突变会干扰初生茎尖分生组织和侧生茎尖分生组织的形成。然而，针尖突变苗的不定梢顶端分生组织可以从子叶的叶腋形成，也可以从培养的根外植体形成。本文描述了针尖突变体的表型，并提出了一种关于野生型针尖基因产物在茎分生组织形成中的作用的假设。(C) 1995 Wiley-Liss, Inc。
The primary shoot apical meristem of angiosperm plants is formed during embryogenesis. Lateral shoot apical meristems arise postembryonically in the axils of leaves. Recessive mutations at the PINHEAD locus of Arabidopsis interfere with the ability of both the primary shoot apical meristem as well as lateral shoot apical meristems to form. However, adventitious shoot apical meristems can form in pinhead mutant seedlings from the axils of the cotyledons and also from cultured root explants. In this report, the phenotype of pinhead mutants is described, and a hypothesis for the role of the wild-type PINHEAD gene product in shoot meristem initiation is presented. (C) 1995 Wiley-Liss, Inc.