Beneficial microbial allelopathies in the root zone: the management of soil quality and plant disease with rhizobacteria

被引:128
作者
Sturz, AV [1 ]
Christie, BR [1 ]
机构
[1] Prince Edward Isl Dept Agr & Forestry, Charlottetown, PE C1A 7N3, Canada
关键词
allelopathy; antibiosis biodiversity; crop rotation; disease suppressive soils; induced systemic resistance; rhizobacteria; soil amendments;
D O I
10.1016/S0167-1987(03)00082-5
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
By virtue of their physiological adaptability and metabolic versatility, bacteria in plant root zones are a key agent of change in soil agroecosystems. Interactions between plant root systems and rhizobacteria have a profound effect on crop health, yield, and soil quality. Through the selective release of exudates and leachates plants activate and sustain specific rhizobacterial communities in the root zone. In turn, root zone bacteria are able to generate a wide array of secondary metabolites which can have a positive influence on plant growth; enhancing the availability of minerals and nutrients, improving nitrogen fixation ability, decreasing susceptibility to frost damage, improving plant health through the biocontrol of phytopathogens, inducing systemic plant disease resistance, and facilitating plant establishment, growth and development. The benefits from root zone bacterial biodiversity are moot in managed agroecosystems, where community complexity is minimized, and ecosystem stability is often disrupted for the purpose of disease control and yield maximization. The complexity of plant-soil-microbial interactions are so varied, that a complete understanding of all the relationships involved is unlikely to be achieved, even in a production monoculture. Nevertheless, the consequences of beneficial biological interactions that stimulate crop yields and improve plant health can be evaluated relatively simply and a number of general management strategies can be devised accordinaly. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:107 / 123
页数:17
相关论文
共 224 条
[1]   Impact of soil health management practices on soilborne pathogens, nematodes and root diseases of vegetable crops [J].
Abawi, GS ;
Widmer, TL .
APPLIED SOIL ECOLOGY, 2000, 15 (01) :37-47
[2]   Vfr controls quorum sensing in Pseudomonas aeruginosa [J].
Albus, AM ;
Pesci, EC ;
RunyenJanecky, LJ ;
West, SEH ;
Iglewski, BH .
JOURNAL OF BACTERIOLOGY, 1997, 179 (12) :3928-3935
[3]  
Altieri M., 2018, AGROECOLOGY SCI SUST
[4]   EFFECT OF COMPOST ON RHIZOSPHERE MICROFLORA OF THE TOMATO AND ON THE INCIDENCE OF PLANT GROWTH-PROMOTING RHIZOBACTERIA [J].
ALVAREZ, MAD ;
GAGNE, S ;
ANTOUN, H .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1995, 61 (01) :194-199
[5]  
ANDERSON JM, 1994, SOIL RESILIENCE AND SUSTAINABLE LAND USE, P267
[6]   The ecology and biogeography of microorganisms of plant surfaces [J].
Andrews, JH ;
Harris, RF .
ANNUAL REVIEW OF PHYTOPATHOLOGY, 2000, 38 :145-180
[7]  
[Anonymous], ACS S SERIES
[8]  
Arshad M, 1998, ADV AGRON, V62, P45
[9]   DIFFERENTIAL REACTIONS OF WHEAT AND PEA GENOTYPES TO ROOT INOCULATION WITH GROWTH-AFFECTING RHIZOSPHERE BACTERIA [J].
ASTROM, B ;
GERHARDSON, B .
PLANT AND SOIL, 1988, 109 (02) :263-269
[10]  
ATLAS RM, 1986, BACTERIA NATURE, V2, P339