摘要
对云南昆明树木园香樟(Cinnamomum camphora)、圆柏(Sabina chinensis)、玉兰(Magnolia denudata)、云南松(Pinus yunnanensis)和红枫(Acer palmatum cv.Atrpouceum)5个树种凋落物菌食性蓟马种类及其种群动态进行了调查研究,共采集665头,隶属1科4属6种,冠管蓟马属(Stephanothrips)肯廷冠管蓟马(S.kentingensis)和西方冠管蓟马(S.occidentalis),网管蓟马属(Apelaunothrips)同色网管蓟马(A.consimilis),奇管蓟马属(Allothrips)奇管蓟马(Al.sp.),器管蓟马属(Hoplothrips)日本器管蓟马(H.japonicus)和简管蓟马属(Haplothrips)简管蓟马(Ha.sp.)。5个树种凋落物中菌食性蓟马种类组成差异较小,优势种均为西方冠管蓟马(S.occidentalis)、肯廷冠管蓟马(S.kentingensis)和奇管蓟马(Al.sp.)。种群季节动态结果表明,不同树种菌食性蓟马的季节动态稍有差异,5个树种凋落物菌食性蓟马成虫和若虫总量的变化趋于一致,但若虫数量波动比成虫大,菌食性蓟马数量最高峰为2011年3月,总数为137头,而2010年8月和2011年5月发生数量最少,仅为5头和9头。
The mutants resistant to nystatin were obtained by UV light induction on PDA amended with nystatin from a wild isolate of Trichoderma viride.Resistant level was over 200 times in comparison with that of the original strain.The mutants could maintain their resistance after be shifted 8 times on the fungicide free PDA,but the growth speed reduced.The resistant strains retained the ability of antagonism against plant pathogenic Erwinia carotovora in vitro and in vivo.The colonization density of T.viride in rhizospheres of displayed a descending trend as the change of time.Overall,T.viride can colonize in the soil and satisfy its bio-control demand.
出处
《云南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第6期780-785,共6页
Journal of Yunnan Agricultural University:Natural Science
基金
云南省教育厅科学研究基金项目(2012Z028,2012J078)
云南农业大学农业入侵生物可持续控制研究省创新团队项目(2011HC005)
农业部公益性(农业)行业科研专项项目(201103026)
关键词
菌食性蓟马
种类
种群动态
凋落物
Trichoderma viride
UV-light
resistance
nystatin
colonization
