The Interactions Between Some Commonly Antagonistic Microbes in Tobacco Fields of Luoyang
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- 英文论文题名：The Interactions Between Some Commonly Antagonistic Microbes in Tobacco Fields of Luoyang
- 论文作者：丁玥琪 ; SONG Xi-le ; 康业斌
- 英文论文作者：DING Yue-qi ; SONG Xi-le ; KANG Ye-bin ; College of Forestry ; Henan University of Science and Technology
- 年：2016
- 作者机构：College of Forestry,Henan University of Science and Technology;
- 英文论文关键词：Antagonistic microbes ; Interactions ; Confrontation culture
- 会议召开时间：2016-08-05
- 会议录名称：中国植物病理学会2016年学术年会论文集
- 英文会议录名称：Proceedings of the Annual Meeting of Chinese Society for Plant Pathology(2016)
- 语种：英文
- 分类号：S435.72;S476.1
- 学会代码：ZGVS
- 会议名称：中国植物病理学会2016年学术年会
- 会议地点：中国江苏南京
- 主办单位：中国植物病理学会
- 学会名称：中国植物病理学会
- 页数：2
- 文件大小：75k
- 原文格式：O
- 会议级别：全国
摘要
In order to screen out the antagonistic microorganisms with benign symbiosis and enhance the control effects of tobacco soil-borne diseases by using multiple biocontrol strains,seventeen species of antagonistic microorganisms(mainly included 6 species of Trichoderma,4 species of bacteria and 7 species of actinomycetes),which were screened and proved that have strong inhibition effects on common tobacco root pathogenic fungus from tobacco growing soil of Luoyang,were used as the research object of this experiment on the basis of previous studies.In this test,we measured the interactions between these antagonistic microorganisms by means of a method called improved confrontation culture.The mainly results obtained are as follows;(1) The confront culture results of Trichoderma strains showed that:most of Trichoderma strains ghave inhibition effects with each other.Among them,T1,T2 and T3 are selected for their well compatibilities,which suggested that these three species of strains have symbiotic abilities.The inhibition effects are usually expressed as the competition of growth space,such as the impaction of aerial mycelium growth and sporulation ability.At the same time,there was a certain relationship between the inhibition effect and the mycelial growth rate.(2) The experimental results of the compatibilities between four tested antagonistic bacterial strains multi-performance to be compatible.Among them,the mutual inhibition rate of compatible combination B1-B2 and B3-B4 below 20%,which showed up complete compatibilities and could be used as mixed objects;however,as incompatible combination B3 has strong inhibitory effects on B1,whose inhibition rate could reach 100%and can not be mixed.(3) The confrontation results between seven speices of antagonistic actinomycetes showed that there were some inhibitory effects on different strains.The interactions between antagonistic actinomycetes were often expressed through influencing hyphae growth as well as changing the color of the aerial hyphae.Through comparative analysis,we may safely draw the conclusion that the combination of LA5,SA57,LB27 and YB4 almost have no obvious inhibition effects.(4) When analyze the compatibilities between these screened biocontrol strains of above tests,the results showed that T1,T2,T3,SA57,LA5 and YB4 were compatible with each other;T1,T2,T3,B1,B2 and B4 could also be used as mixed objects.The inhibitory effects of antagonistic actinomycetes to antagonistic bacteria were very strong,whose inhibitory rate could achieve 100%.This study shows that,there were inhibition effects between antagonistic microbes,and these incompatibilities can directly effect the control efficiency of mixed biological agents.The screened strains with high compatibilities in this experiment can provide theoretical basis for the further using of controlhng the soil-borne diseases of tobacco.
In order to screen out the antagonistic microorganisms with benign symbiosis and enhance the control effects of tobacco soil-borne diseases by using multiple biocontrol strains,seventeen species of antagonistic microorganisms(mainly included 6 species of Trichoderma,4 species of bacteria and 7 species of actinomycetes),which were screened and proved that have strong inhibition effects on common tobacco root pathogenic fungus from tobacco growing soil of Luoyang,were used as the research object of this experiment on the basis of previous studies.In this test,we measured the interactions between these antagonistic microorganisms by means of a method called improved confrontation culture.The mainly results obtained are as follows;(1) The confront culture results of Trichoderma strains showed that:most of Trichoderma strains ghave inhibition effects with each other.Among them,T1,T2 and T3 are selected for their well compatibilities,which suggested that these three species of strains have symbiotic abilities.The inhibition effects are usually expressed as the competition of growth space,such as the impaction of aerial mycelium growth and sporulation ability.At the same time,there was a certain relationship between the inhibition effect and the mycelial growth rate.(2) The experimental results of the compatibilities between four tested antagonistic bacterial strains multi-performance to be compatible.Among them,the mutual inhibition rate of compatible combination B1-B2 and B3-B4 below 20%,which showed up complete compatibilities and could be used as mixed objects;however,as incompatible combination B3 has strong inhibitory effects on B1,whose inhibition rate could reach 100%and can not be mixed.(3) The confrontation results between seven speices of antagonistic actinomycetes showed that there were some inhibitory effects on different strains.The interactions between antagonistic actinomycetes were often expressed through influencing hyphae growth as well as changing the color of the aerial hyphae.Through comparative analysis,we may safely draw the conclusion that the combination of LA5,SA57,LB27 and YB4 almost have no obvious inhibition effects.(4) When analyze the compatibilities between these screened biocontrol strains of above tests,the results showed that T1,T2,T3,SA57,LA5 and YB4 were compatible with each other;T1,T2,T3,B1,B2 and B4 could also be used as mixed objects.The inhibitory effects of antagonistic actinomycetes to antagonistic bacteria were very strong,whose inhibitory rate could achieve 100%.This study shows that,there were inhibition effects between antagonistic microbes,and these incompatibilities can directly effect the control efficiency of mixed biological agents.The screened strains with high compatibilities in this experiment can provide theoretical basis for the further using of controlhng the soil-borne diseases of tobacco.
In order to screen out the antagonistic microorganisms with benign symbiosis and enhance the control effects of tobacco soil-borne diseases by using multiple biocontrol strains,seventeen species of antagonistic microorganisms(mainly included 6 species of Trichoderma,4 species of bacteria and 7 species of actinomycetes),which were screened and proved that have strong inhibition effects on common tobacco root pathogenic fungus from tobacco growing soil of Luoyang,were used as the research object of this experiment on the basis of previous studies.In this test,we measured the interactions between these antagonistic microorganisms by means of a method called improved confrontation culture.The mainly results obtained are as follows;(1) The confront culture results of Trichoderma strains showed that:most of Trichoderma strains ghave inhibition effects with each other.Among them,T1,T2 and T3 are selected for their well compatibilities,which suggested that these three species of strains have symbiotic abilities.The inhibition effects are usually expressed as the competition of growth space,such as the impaction of aerial mycelium growth and sporulation ability.At the same time,there was a certain relationship between the inhibition effect and the mycelial growth rate.(2) The experimental results of the compatibilities between four tested antagonistic bacterial strains multi-performance to be compatible.Among them,the mutual inhibition rate of compatible combination B1-B2 and B3-B4 below 20%,which showed up complete compatibilities and could be used as mixed objects;however,as incompatible combination B3 has strong inhibitory effects on B1,whose inhibition rate could reach 100%and can not be mixed.(3) The confrontation results between seven speices of antagonistic actinomycetes showed that there were some inhibitory effects on different strains.The interactions between antagonistic actinomycetes were often expressed through influencing hyphae growth as well as changing the color of the aerial hyphae.Through comparative analysis,we may safely draw the conclusion that the combination of LA5,SA57,LB27 and YB4 almost have no obvious inhibition effects.(4) When analyze the compatibilities between these screened biocontrol strains of above tests,the results showed that T1,T2,T3,SA57,LA5 and YB4 were compatible with each other;T1,T2,T3,B1,B2 and B4 could also be used as mixed objects.The inhibitory effects of antagonistic actinomycetes to antagonistic bacteria were very strong,whose inhibitory rate could achieve 100%.This study shows that,there were inhibition effects between antagonistic microbes,and these incompatibilities can directly effect the control efficiency of mixed biological agents.The screened strains with high compatibilities in this experiment can provide theoretical basis for the further using of controlhng the soil-borne diseases of tobacco.
引文