Sempere F, Santamarina M P
Department of Agroforest Ecosystems, School of Rural Environments and Enology, Polytechnic University of Valencia, Avda. Blasco Ibañez, 21, 46010, Valencia, Spain.
Mycopathologia. 2007 Mar;163(3):183-90. doi: 10.1007/s11046-007-0101-x. Epub 2007 Mar 13.
The species Trichoderma harzianum was analyzed as possible biocontrol agent of Alternaria alternata under different environmental conditions (water activity and temperature). The strains were analyzed macroscopically to obtain the Index of Dominance. The analysis was completed using two microscopic techniques. T. harzianum showed dominance on contact over A. alternata at all testing temperatures and water activities tested except at 0.95 a(w) and 15 degrees C, at which T. harzianum inhibited A. alternata at a distance. Biocontrol was governed by different mechanisms such as competition for space and nutrients, mycoparasitism, and possible antibiosis. Temperature and water activity significantly influenced fungal growth rate.
对哈茨木霉在不同环境条件（水分活度和温度）下作为链格孢的潜在生物防治剂进行了分析。对菌株进行宏观分析以获得优势指数。使用两种显微技术完成了分析。除了在水分活度0.95和15摄氏度时哈茨木霉在一定距离抑制链格孢外，在所有测试温度和水分活度下，哈茨木霉与链格孢接触时均表现出优势。生物防治受多种不同机制支配，如对空间和养分的竞争、菌寄生以及可能的抗生作用。温度和水分活度显著影响真菌生长速率。
