The role of the Arabidopsis ELD1 gene in cell development and photomorphogenesis in darkness
The role of the Arabidopsis ELD1 gene in cell development and photomorphogenesis in darkness
复制标题
DOI：
10.1104/pp.123.2.509
复制
发表时间：
2000-06-01
期刊：
影响因子：
7.4
通讯作者：
Sung, ZR
中科院分区：
文献类型：
--
作者：
Cheng, JC;Lertpiriyapong, K;Sung, ZR
由于细胞生长和分化受到不同信号通路之间复杂相互作用的调节，因此生长缺陷会影响随后的分化。我们报告的生长缺陷突变体拟南芥，称为eld1（elongation deficient I）。在检查的每个器官中细胞伸长受损。eld1表型的后期特征包括缺陷的维管组织分化，不能在土壤中生长，木栓质在扭曲的维管束周围异位沉积，去黄化表型，以及在黑暗中继续枝条发育和开花。矮表型eld1：不能拯救治疗与外源生长调节剂，因为有缺陷的细胞伸长是最早和最普遍的功能检测eld1突变体，控制或活动在下跌伸长可能是ELD1基因的主要功能。受损的细胞生长导致对细胞增殖和分化的多效性效应，并且下胚轴伸长的延迟使得能够在黑暗中生长和发育。
Because cell growth and differentiation are regulated by complex interactions among different signaling pathways, a growth defect affects subsequent differentiation. We report on a growth-defective mutant of Arabidopsis, called eld1 (elongation defective I). Cell elongation was impaired in every organ examined. Later characteristics of the eld1 phenotype include defective vascular tissue differentiation, the inability to grow in soil, ectopic deposition of suberin around twisted vascular bundles, the de-etiolation phenotype, and continuation of shoot development and flowering in the dark. The dwarf phenotype of eld1: could not be rescued by treatment with exogenous growth regulators, because defective cell elongation is the earliest and most universal feature detected in eld1 mutants, control of or activity in fell elongation may be the primary function of the ELD1 gene. The impaired cell growth results in pleiotropic effects on cell proliferation and differentiation, and the retardation in hypocotyl elongation enables growth and development in darkness.