scholarly journals Involvement of the ethylene response pathway in dormancy induction in chrysanthemum

2008 ◽  
Vol 59 (15) ◽  
pp. 4075-4082 ◽  
Author(s):  
Katsuhiko Sumitomo ◽  
Takako Narumi ◽  
Shigeru Satoh ◽  
Tamotsu Hisamatsu
Keyword(s):  
Ethylene Response ◽  
Dormancy Induction

Mechanisms of ethylene biosynthesis and response in plants

2015 ◽  
Vol 58 ◽  
pp. 61-70 ◽  
Author(s):  
Paul B. Larsen
Keyword(s):  
Plant Growth ◽  
Growth And Development ◽  
Ethylene Biosynthesis ◽  
Unsaturated Hydrocarbon ◽  
Flower Senescence ◽  
Detailed Knowledge ◽  
Plant Growth And Development ◽  
Step Process ◽  
Ethylene Response ◽  
Ethylene Signalling

Ethylene is the simplest unsaturated hydrocarbon, yet it has profound effects on plant growth and development, including many agriculturally important phenomena. Analysis of the mechanisms underlying ethylene biosynthesis and signalling have resulted in the elucidation of multistep mechanisms which at first glance appear simple, but in fact represent several levels of control to tightly regulate the level of production and response. Ethylene biosynthesis represents a two-step process that is regulated at both the transcriptional and post-translational levels, thus enabling plants to control the amount of ethylene produced with regard to promotion of responses such as climacteric flower senescence and fruit ripening. Ethylene production subsequently results in activation of the ethylene response, as ethylene accumulation will trigger the ethylene signalling pathway to activate ethylene-dependent transcription for promotion of the response and for resetting the pathway. A more detailed knowledge of the mechanisms underlying biosynthesis and the ethylene response will ultimately enable new approaches to be developed for control of the initiation and progression of ethylene-dependent developmental processes, many of which are of horticultural significance.

scholarly journals Role of ethylene and the APETALA 2/ethylene response factor superfamily in rice under various abiotic and biotic stress conditions

2017 ◽  
Vol 134 ◽  
pp. 33-44 ◽  
Author(s):  
Rambod Abiri ◽  
Noor Azmi Shaharuddin ◽  
Mahmood Maziah ◽  
Zetty Norhana Balia Yusof ◽  
Narges Atabaki ◽  
...  
Keyword(s):  
Biotic Stress ◽  
Stress Conditions ◽  
Ethylene Response Factor ◽  
Response Factor ◽  
Abiotic And Biotic Stress ◽  
Ethylene Response ◽  
Apetala 2

scholarly journals Ethylene response pathway is essential forARABIDOPSIS A-FIFTEENfunction in floral induction and leaf senescence

2012 ◽  
Vol 7 (4) ◽  
pp. 457-460 ◽  
Author(s):  
Guan-Hong Chen ◽  
Yuan-Li Chan ◽  
Chia-Ping Liu ◽  
Long-Chi Wang
Keyword(s):  
Leaf Senescence ◽  
Floral Induction ◽  
Ethylene Response

scholarly journals Putative role of cytokinin in differential ethylene response of two lines of antisense ACC oxidase cantaloupe melons

2013 ◽  
Vol 86 ◽  
pp. 511-519 ◽  
Author(s):  
Ciane Xavier Gonçalves ◽  
Aline Tiecher ◽  
Fábio Clasen Chaves ◽  
Leonardo Nora ◽  
Li Zhengguo ◽  
...  
Keyword(s):  
Acc Oxidase ◽  
Ethylene Response ◽  
Putative Role

F-box protein MdAMR1L1 regulates ascorbate biosynthesis in apple by modulating GDP-mannose pyrophosphorylase

2021 ◽  
Author(s):  
Songya Ma ◽  
Huixia Li ◽  
Lan Wang ◽  
Baiyun Li ◽  
Zhengyang Wang ◽  
...  
Keyword(s):  
Regulatory Mechanism ◽  
Transcript Level ◽  
Ethylene Response Factor ◽  
Protein Abundance ◽  
Protein Levels ◽  
Guanosine Diphosphate ◽  
Physiological Processes ◽  
Ethylene Response ◽  
Ubiquitination Pathway ◽  
F Box Protein

Abstract Ascorbate (Asc) is an important antioxidant in plants and humans that plays key roles in various physiological processes. Understanding the regulation of Asc content in fruit plants is important for improving plant resiliency and optimizing Asc in food. Here, we found that both the transcript level and protein abundance of Asc Mannose pathway Regulator 1 Like 1 (MdAMR1L1) was negatively associated with Asc levels during the development of apple (Malus × domestica) fruit. The overexpression or silencing of MdAMR1L1 in apple indicated that MdAMR1L1 negatively regulated Asc levels. However, in the leaves of MdAMR1L1-overexpressing apple lines, the transcript levels of the Asc synthesis gene Guanosine diphosphate-mannose pyrophosphorylase MdGMP1 were increased, while its protein levels and enzyme activity were reduced. This occurred because the MdAMR1L1 protein interacted with MdGMP1 and promoted its degradation via the ubiquitination pathway to inhibit Asc synthesis at the post-translational level. MdERF98, an apple ethylene response factor, whose transcription was modulated by Asc level, is directly bound to the promoter of MdGMP1 to promote the transcription of MdGMP1. These findings provide insights into the regulatory mechanism of Asc biosynthesis in apples and revealed potential opportunities to improve fruit Asc levels.

Identification of Arabidopsis stay-green mutants with a functional ethylene-response pathway

2010 ◽  
Vol 14 ◽  
pp. 119-129
Author(s):  
R. Shirzadian-Khorramabad ◽  
H.C. Jing ◽  
J. Hille ◽  
P.P. Dijkwel
Keyword(s):  
Shelf Life ◽  
Leaf Senescence ◽  
Plant Hormone ◽  
Floral Induction ◽  
Growth Conditions ◽  
Pleiotropic Effects ◽  
Wild Type ◽  
Stay Green ◽  
Ethylene Response ◽  
Determinant Factor

Natural or harvest-induced senescence is a major determinant factor causing crop losses. The plant hormone ethylene is a strong inducer of senescence and decreasing the ethylene response can reduce senescence, albeit often with undesirable pleiotropic effects. We took advantage of ethylene-induced leaf senescence as a tool to screen for late senescence Arabidopsis mutants that still have a functional ethylenesignalling pathway. Sixteen Arabidopsis onset of leaf death (old) mutants were selected that stayed green after treatment with ethylene. While all the mutants responded to ethylene in a triple response assay, ten mutants responded to the treatment in the same way as the wild type. These ten mutants showed limited pleiotropic effects when grown under standard growth conditions but nine mutants flowered slightly later than the wild type. Genetic characterisation of a subset of the mutants identified several independent loci controlling the leaf senescence process. The approach resulted in the isolation of several stay-green mutants with a functional ethylene response pathway. The late senescence mutants show extended leaf longevity and further research may advance the field of pre- or post-harvest senescence technology. The results, moreover, suggest that there is a correlation between senescence and floral induction. Keywords: Senescence, Arabidopsis, ethylene, mutant, shelf life

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