technology Research Institute Has Provided New Information about Alkenes -->
By a News Reporter-Staff News Editor at Life Science Weekly -- A new study on Alkenes is now available. According to news reporting originating in Beijing, People's Republic of China, by NewsRx journalists, research stated, "Ethylene plays major roles in adaptive growth of rice plants in water-saturated soil; however, ethylene signaling in rice is largely unclear. Here, we report identification and characterization of ethylene-response mutants based on distinct ethylene-response phenotypes of dark-grown rice seedlings.Ethylene plays essential roles in adaptive growth of rice plants in water-saturating environment; however, ethylene signaling pathway in rice is largely unclear."
The news reporters obtained a quote from the research from Biotechnology Research Institute, "In this study, we report identification and characterization of ethylene-response mutants based on the specific ethylene-response phenotypes of etiolated rice seedlings, including ethylene-inhibited root growth and ethylene-promoted coleoptile elongation, which is different from the ethylene triple-response phenotype in Arabidopsis. We establish an efficient system for screening and a set of rice mutants have been identified. Genetic analysis reveals that these mutants form eight complementation groups. All the mutants show insensitivity or reduced sensitivity to ethylene in root growth but exhibit differential responses in coleoptile growth. One mutant group mhz7 has insensitivity to ethylene in both root and coleoptile growth. We identified the corresponding gene by a map-based cloning method. MHZ7 encodes a membrane protein homologous to EIN2, a central component of ethylene signaling in Arabidopsis. Upon ethylene treatment, etiolated MHZ7-overexpressing seedlings exhibit enhanced coleoptile elongation, increased mesocotyl growth and extremely twisted short roots, featuring enhanced ethylene-response phenotypes in rice. Grain length was promoted in MHZ7-transgenic plants and 1000-grain weight was reduced in mhz7 mutants. Leaf senescent process was also affected by MHZ7 expression."
According to the news reporters, the research concluded: "Manipulation of ethylene signaling may improve adaptive growth and yield-related traits in rice."
For more information on this research see: Identification of Rice Ethylene-Response Mutants and Characterization of MHZ7/OsEIN2 in Distinct Ethylene Response and Yield Trait Regulation. Molecular Plant, 2013;6(6):1830-1848. Molecular Plant can be contacted at: Oxford Univ Press, Great Clarendon St, Oxford OX2 6DP, England. (Oxford University Press - www.oup.com/; Molecular Plant - mplant.oxfordjournals.org)
Our news correspondents report that additional information may be obtained by contacting B. Ma, Chinese Academy Agr Sci, Biotechnol Res Inst, Natl Key Facil Genet Resources & Gene Improvement, Beijing 100081, People's Republic of China. Additional authors for this research include S.J. He, K.X. Duan, C.C. Yin, H. Chen, C. Yang, Q. Xiong, Q.X. Song, X. Lu, H.W. Chen, W.K. Zhang, T.G. Lu, S.Y. Chen and J.S. Zhang (see also Alkenes).
Keywords for this news article include: Asia, Beijing, Alkenes, Ethylenes, People's Republic of China
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