نتایج جستجو برای: etiolation

تعداد نتایج: 243  

Journal: :Genes & development 2000
C Bolle C Koncz N H Chua

Light signaling via the phytochrome A (phyA) photoreceptor controls basic plant developmental processes including de-etiolation and hypocotyl elongation. We have identified a new Arabidopsis mutant, pat (phytochrome A signal transduction)1-1, which shows strongly reduced responses in continuous far-red light. Physiological and molecular data indicate that this mutant is disrupted at an early st...

2016
Giorgio Perrella Eirini Kaiserli

Light is a powerful stimulus regulating many aspects of plant development and phenotypic plasticity. Plants sense light through the action of specialized photoreceptor protein families that absorb different wavelengths and intensities of light. Recent discoveries in the area of photobiology have uncovered photoreversible changes in nuclear organization correlated with transcriptional regulation...

Journal: :Cell 2001
Jeong-Gu Kang Ju Yun Dae-Hwan Kim Kyung-Sook Chung Shozo Fujioka Jeong-Il Kim Hye-Won Dae Shigeo Yoshida Suguru Takatsuto Pill-Soon Song Chung-Mo Park

Plant growth and development are regulated through coordinated interactions between light and phytohormones. Here, we demonstrate that a dark-induced small G protein, pea Pra2, regulates a variant cytochrome P450 that catalyzes C-2 hydroxylation in brassinosteroid biosynthesis. The cytochrome P450 is dark-induced and predominantly expressed in the rapidly elongating zone of etiolated pea epicot...

2017
Xiaoqin Liu Yue Li Shangwei Zhong

Chlorophyll biosynthesis is one of the most important cellular processes and is essential for plant photosynthesis. After germination under the soil, dark-grown seedlings are etiolated and accumulate the chlorophyll precursor protochlorophyllide (Pchlide) in cotyledons. Upon exposure to light, Pchlide is rapidly converted to chlorophyll to initiate photoautotrophic growth. In this light-regulat...

Journal: :Forests 2021

The process of etiolation contributes significantly to vegetative propagation and root formation woody plants. However, the molecular interaction pattern different factors for etiolated adventitious development in plants remains unclear. In present study, we explored changes at stages Robinia pseudoacacia. Histological transcriptomic analyses were performed lower portion hypocotyls ascertain re...

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