Full TGIF Record # 269783
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Web URL(s):https://link.springer.com/content/pdf/10.2478%2Fs11756-012-0048-3.pdf
    Last checked: 10/06/2017
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Publication Type:
Author(s):Dai, Xiaomei; Cheng, Xiaoxia; Li, Yunxia; Tang, Wei; Han, Liebao
Author Affiliation:Dai, Cheng, Li, and Han: Institute of Turfgrass Science, Beijing Forestry University, Beijing; Han: College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei Province, China; Tang: Institute for Genome Sciences and Policy, Duke University, Durham
Title:Differential expression of gibberellin 20 oxidase gene induced by abiotic stresses in Zoysiagrass (Zoysia japonica)
Source:Biologia. Vol. 67, No. 4, August 2012, p. 681-688.
# of Pages:8
Publishing Information:Bratislava, Slovakia: Slovenská Akadémia Vied a Umení
Related Web URL:https://link.springer.com/article/10.2478/s11756-012-0048-3
    Last checked: 10/06/2017
    Notes: Abstract only
Keywords:TIC Keywords: Abiotic disorders; Cold stress; Gibberellic acid; Gibberellins; Growth regulator evaluation; Heat stress; Hydrogen peroxide; Salicylic acid; Salt stress; Turfgrass profile; Zoysia japonica
Abstract/Contents:"The gibberellin 20-oxidase gene (GA20) plays an important role in plant growth and development. Differential expression of Zoysiagrass (Zoysia japonica Steud.) gibberellin 20 oxidase gene (ZjGA20) induced by abiotic stresses has not been reported. In this investigation, we first reported the differential expression of ZjGA20 in different Z. Japonica tissues including root, young leaf, senescent leaf, blade, sheath, and stolon, as well as differential expression induced by abiotic stresses including low temperature (4 degrees C), H2O2(8 μM), salt stress (250 mM NaCl), 25% PEG6000, and high temperature (42 degrees C) by Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR). Higher expression of ZjGA20 was observed in young leaf and sheath, compared to root, senescent leaf, blade, and stolon. Among different abiotic stresses, expression of ZjGA20 decreased under low temperature, 25% PEG6000, and high temperature. The highest expression of ZjGA20 was obtained when plants were treated with 8 μM H2O2 for 10 h and with 250 mM NaCl for 5 h. The analysis of the MDA content, POD activity, and permeability of the plasma membrane demonstrated that application of exogenous GA3 recovered tissue damage derived from low temperature treatment. In addition, the expression of ZjGA20 increased under low temperature stress. These results demonstrated that expression of ZjGA20 was regulated by abiotic stresses and the damage derived from abiotic stresses could be rescued by exogenously applied plant growth regulator GA3. Further more, exogenous gibberellin and salicylic acid (SA) alleviated the growth inhibition and death of the seedlings under stresses. The SA content in the seedlings treated with 80 μM GA3 was far greater than the control (with H2O) and plants under stress treatments. These data suggest that exogenous addition of GA3 is able to counteract the inhibitory effects of these adverse environmental conditions in Zoysiagrass growth through modulation of SA biosynthesis. This is the first study of differential expression of gibberellin 20 oxidase gene and growth regulation of GA3 in Zoysiagrass under stresses."
Note:Pictures, color & b/w
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dai, X., X. Cheng, Y. Li, W. Tang, and L. Han. 2012. Differential expression of gibberellin 20 oxidase gene induced by abiotic stresses in Zoysiagrass (Zoysia japonica). Biologia. 67(4):p. 681-688.
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DOI: 10.2478/s11756-012-0048-3
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    Last checked: 10/06/2017
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: b2191410
MSU catalog number: b5233470
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