scholarly journals Interaction Between Photoreceptors and BR Signaling in Arabidopsis

2015 ◽  
Vol 56 (2) ◽  
pp. 126-136 ◽  
Author(s):  
Zhong Xin Zhu ◽  
Xiao Feng Zhu ◽  
Yu Ting Zhu ◽  
Da Nian Yao ◽  
Yuan Hu Xuan
Keyword(s):  
Gene Regulation ◽  
Plant Growth ◽  
Plant Development ◽  
Marker Gene ◽  
Important Class ◽  
Hypocotyl Growth ◽  
Dominant Mutant ◽  
Quadruple Mutant ◽  
Growth Development

Abstract Extensive studies have been performed to elucidate the role of brassinosteroids (BRs), an important class of phy-tohormone in plant growth, development, and photomorphogenesis. Different wavelengths of light recognized by photoreceptors play a crucial role in plant development. The role of different photoreceptors in BR signaling has not been analyzed. Here we used photoreceptor single mutants, double mutants and even a quadruple mutant to analyze BR-dependent hypocotyl growth and gene regulation. All the photoreceptor mutants differed from the controls in their response to BR, and hypocotyl elongation as well as BR marker gene regulation were inhibited by application of propiconazole (PCZ), a BR biosynthesis inhibitor. In addition, altered Phytochrome and Cryptochrome expression in brassinosteroid insensitive 1 mutant bri1-5 and brassinazole-resistant 1 dominant mutant bzr1-D indicated that BR negatively regulates photoreceptors in transcriptional levels. This is the first study to investigate the connections between BR and photoreceptors in Arabidopsis.

Role of GABA in plant growth, development and senescence

Plant Gene ◽  
2021 ◽  
Vol 26 ◽  
pp. 100283
Author(s):  
M. Iqbal R. Khan ◽  
Syed Uzma Jalil ◽  
Priyanka Chopra ◽  
Himanshu Chhillar ◽  
Antonio Ferrante ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Development

Role of Salicylic Acid in the Control of General Plant Growth, Development, and Productivity

2017 ◽  
pp. 1-15
Author(s):  
Cesar J. Tucuch-Haas ◽  
Jesica V. Pérez-Balam ◽  
Karen B. Díaz-Magaña ◽  
José Manuel Castillo-Chuc ◽  
María G. Dzib-Ek ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Plant Growth ◽  
Growth Development

scholarly journals The Role of Plasmodesmata-Associated Receptor in Plant Development and Environmental Response

Plants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 216 ◽  
Author(s):  
Minh Huy Vu ◽  
Arya Bagus Boedi Iswanto ◽  
Jinsu Lee ◽  
Jae-Yean Kim
Keyword(s):  
Plant Growth ◽  
Cell Biology ◽  
Current Knowledge ◽  
Environmental Response ◽  
Native Structure ◽  
In Planta ◽  
Plant Growth And Development ◽  
Growth Development ◽  
External Stimuli

Over the last decade, plasmodesmata (PD) symplasmic nano-channels were reported to be involved in various cell biology activities to prop up within plant growth and development as well as environmental stresses. Indeed, this is highly influenced by their native structure, which is lined with the plasma membrane (PM), conferring a suitable biological landscape for numerous plant receptors that correspond to signaling pathways. However, there are more than six hundred members of Arabidopsis thaliana membrane-localized receptors and over one thousand receptors in rice have been identified, many of which are likely to respond to the external stimuli. This review focuses on the class of plasmodesmal-receptor like proteins (PD-RLPs)/plasmodesmal-receptor-like kinases (PD-RLKs) found in planta. We summarize and discuss the current knowledge regarding RLPs/RLKs that reside at PD–PM channels in response to plant growth, development, and stress adaptation.

scholarly journals miRNA-encoded peptide, miPEP858, regulates plant growth and development in Arabidopsis

2019 ◽  
Author(s):  
Ashish Sharma ◽  
Poorwa Kamal Badola ◽  
Chitra Bhatia ◽  
Deepika Sharma ◽  
Prabodh Kumar Trivedi
Keyword(s):  
Plant Growth ◽  
Plant Development ◽  
Growth And Development ◽  
Target Genes ◽  
Phenylpropanoid Pathway ◽  
Plant Growth And Development ◽  
Small Peptide ◽  
Knock Out ◽  
Exogenous Treatment

AbstractMicroRNAs (miRNAs), small non-coding endogenous RNAs, are processed product of primary miRNAs (pri-miRNAs) and regulate target gene expression. pri-miRNAs have also been reported to encode small peptides, miRNA-Encoded Peptides (miPEPs). Though regulatory role of miPEPs has been speculated, no detailed study has been carried out to elucidate their function through developing knock-out mutants. Here, we report that pri-miR858a of Arabidopsis thaliana encodes a small peptide (miPEP858a) which regulates the expression of pri-miR858a leading to modulation in the expression of target genes involved in the plant growth and development as well as phenylpropanoid pathway. CRISPR-based miPEP858a-edited plants developed phenotypes similar to that of mature miR858-edited plants suggesting crucial role of miPEP858a in mediating miR585a function. miPEP858a-edited and miPEP858a overexpressing lines altered plant development and accumulated modulated levels of flavonoids due to changes in expression of associated genes. Exogenous treatment of synthetic-miPEP858a to the miPEP858a-edited plants complemented phenotypes and the gene function suggesting a significant role of miPEP858a in controlling the miR858 function and plant development.One sentence summarySmall peptide, miPEP858a, encoded by primary miRNA for miR858a regulates plant growth, development and flavonoid biosynthesisThe authors responsible for distribution of materials integral to the findings presented in this article in accordance with the policy described in the Instructions for Authors

scholarly journals Qa-SNARE Protein SYP22 Negatively Regulates Brassinosteroid Signaling in the Dark

2015 ◽  
Vol 57 (2) ◽  
pp. 79-88
Author(s):  
Ting Shan Yao ◽  
Xiao Feng Zhu ◽  
Jin Hee Jung ◽  
Yuan Hu Xuan
Keyword(s):  
Marker Gene ◽  
Adaptor Protein ◽  
Hypocotyl Growth ◽  
Protein Receptor ◽  
Brassinosteroid Signaling ◽  
Sensitive Factor ◽  
Shoot Gravitropism ◽  
Bri1 Mutant ◽  
Pleiotropic Function

Abstract Soluble N-ethyl-maleimide sensitive factor attachment adaptor protein receptor (SNARE) domain-containing proteins were mainly involved in vesicle-associated membrane fusion. Genetic screening has revealed the function of SNARE in different aspects of plant biology. Among them, Synthaxin-22 (SYP22) a Qa-SNARE has been reported to have a pleiotropic function in plant development including regulation of leaf waving, shoot gravitropism and flowering time. In this study, we identified a new role of SYP22 in regulation of brassinosteroid (BR) signaling, especially in the dark. SYP22 interacts with BR receptor, brassinosteroid insensitive 1 (BRI1), and overexpression of SYP22 enhanced a weak BRI1 mutant bri1-5 phenotype. syp22 mutant exhibits short hypocotyl and it is sensitive to exogenously treated BR while slightly insensitive to BR-biosynthesis inhibitor propiconazole (PCZ) in the dark. Expression levels of BR signaling maker genes ACS5, SAUR15 and IAA19 were slightly higher, while BR6OX2, a BR biosynthesis marker gene, was lower in syp22 compared to the wild-type. In addition, syp22 was sensitive to 2,4-D, a synthetic auxin, in the dark. In conclusion, SYP22 is involved in BR- and auxin-mediated hypocotyl growth inhibition in the dark, which might be via interaction with BR and auxin key regulators to alter their internalization in Arabidopsis.

LIGHT AND THE DEVELOPMENT OF GRAND RAPIDS LETTUCE

1983 ◽  
Vol 63 (1) ◽  
pp. 277-281 ◽  
Author(s):  
L. E. CRAKER ◽  
M. SEIBERT
Keyword(s):  
Plant Growth ◽  
Growth And Development ◽  
Leaf Size ◽  
Light Energy ◽  
Constant Amount ◽  
Grand Rapids ◽  
Number Of Leaves ◽  
Growth Development ◽  
Two Stages

The role of photoperiod and irradiance level on growth and development of lettuce was investigated at two stages of plant growth. Vegetative dry weights and the number of leaves are primarily influenced by length of the photoperiod with most growth occurring under long photoperiods and high irradiances. Leaf area of mature plants was related to the input of light energy suggesting a photoregulatory process in the plant that optimizes leaf size for intercepting a constant amount of photosynthetic light.Key words: Lactuca sativa, growth, development, photoperiod, irradiance, light energy

Growth, Development and Grain Yield of Maize

1981 ◽  
Vol 17 (2) ◽  
pp. 203-207 ◽  
Author(s):  
R. C. Hawkins ◽  
P. J. M. Cooper
Keyword(s):  
Growth Rate ◽  
Plant Growth ◽  
Grain Yield ◽  
Plant Development ◽  
Field Experiments ◽  
Flowering Period ◽  
Growth Development

SUMMARYResults from field experiments showed that number of mature grains per plant was related to the plant growth rate during the pre-flowering period. This relation was further improved when growth rate was expressed relative to the rate of plant development. This evidence supports the theory that grain abortion is linked with assimilate production.

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