Full TGIF Record # 275998
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Web URL(s):http://www.ecologica.cn/stxb/ch/reader/create_pdf.aspx?file_no=stxb201007151049&flag=&journal_id=stxb&year_id=2011
    Last checked: 10/3/2016
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Publication Type:
i
Refereed
Author(s):Duo, Lian; Wang, Jingjing; Zhao, Shulan
Author Affiliation:College of Life Sciences, Tianjin Normal University, Tianjin, China
Title:Effects of municipal compost extracted complex microbial communities on physio-ecological characteristics of turfgrass under drought stress
Source:Acta Ecologica Sinica. Vol. 31, No. 16, August 2011, p. 4717-4724.
Publishing Information:[Amsterdam, The Netherlands]: Elsevier B.V.
# of Pages:8
Keywords:TIC Keywords: Catalase; Composts; Drought stress; Festuca arundinacea; Growth analysis; Lolium perenne; Microbial activity; Municipal solid waste; Peroxidase; Superoxide dismutase
Abstract/Contents:"In arid and semi-arid areas, drought stress is a key factor limiting plant growth and development. In recent years, much attention has been paid to enhancing plant adaptability to arid environment by inoculating plants with complex microbial communities. Many studies indicated that complex microbial communities are able to enhance drought resistance of plants and promote plant growth. However, in most of these studies microbial communities involved were extracted from soils. Little is known about the effect of similar microbial communities extracted from municipal solid waste compost (MSWC) on plant growth and drought tolerance. It is well known that MSWC consists of a rich variety of rapid succession microbial communities with the size of the population and community depending on the composition and content of organic matter in MSWC and the interaction among the microorganisms. In the study reported in this paper, extractions with different concentrations of complex microbial communities were prepared from MSWC, and were applied to turfgrass medium. The effects of complex microbial communities on physio-ecological indices of two turfgrass cultivars under drought stress were investigated. The results indicated that under drought stress, malondialdehyde (MDA) content in the turfgrass leaves with the treatments of being inoculated with complex microbial communities were significantly lower than that of the control. Superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activities with the same treatments were significantly higher than those of the control. However, turfgrass cultivars responded differently to drought under the treatments. With the treatment of inoculation of 200 times complex microbial communities diluent, leaf MDA content of Festuca arundinacea was 24.3% lower than that of control; while SOD, POD and CAT activities were 8.13, 1.53 and 2.47 times higher than that of control, respectively. For Lolium perenne, leaf MDA content decreased by 41.3% under the treatment of 100 times complex microbial communities diluent inoculation, while POD, CAT and SOD activities increased by 64.4%, 56.1% and 6.50 times respectively comparing with the control. The results also indicated that inoculation of complex microbial communities decreased proline and soluble protein contents in the leaves and enhanced excised leaf water retaining capacity. For Festuca arundinacea, with inoculation of 200 times complex microbial communities diluent, leaf proline and soluble protein contents were 30.1% and 78.6% lower than those of the control. While for Lolium perenne, leaf proline and soluble protein contents with treatment of 100 times complex microbial communities diluent decreased by 27.3% and 66.2% when compared with control. Excised leaf water retaining capacity of the two turfgrass cultivars with inoculation of complex microbial communities was higher than that of the control, and reached the maximum at inoculation of 200 times of complex microbial communities diluent for Festuca arundinacea and at inoculation of 100 times of complex microbial communities diluent for Lolium perenne. These results suggest that complex microbial communities inoculation could effectively alleviate the damage of drought stress in plants through regulating their own protective enzyme activities and osmoregulation substance contents, and maintaining the normal physiological and metabolic function. This ability of complex microbial communities in improving drought resistance of turfgrass provides a feasible approach to establish turf in arid and semi-arid environment. This study also revealed the importance of selecting and cultivating different group of high efficient complex microbial communities from MSWC for different turf species/cultivars in coping with the drought stress in arid and semi-arid environment."
Language:Chinese
References:18
Note:Abstract also appears in English
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Duo, L., J. Wang, and S. Zhao. 2011. Effects of municipal compost extracted complex microbial communities on physio-ecological characteristics of turfgrass under drought stress. (In Chinese) Acta Ecologica Sinica. 31(16):p. 4717-4724.
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http://www.ecologica.cn/stxb/ch/reader/create_pdf.aspx?file_no=stxb201007151049&flag=&journal_id=stxb&year_id=2011
    Last checked: 10/3/2016
    Requires: PDF Reader
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