A new disease in mango caused by Trichothecium roseum.
He ShiLan, Liu ZengLiang, Liu XiaoMei, Xie YiXian, Pu JinJi
Author Affiliation: Hainan Agricultural College, Haikou, Hainan 571100, China.
Journal of Fruit Science 28 : 474-478
Abstract : A new leaf spot disease of mango was found in Yunnan province of China in 2009. A fungus was isolated from diseased leaves and Koch's law fulfilled. The fungus was identified as Trichothecium roseum according to its morphology and the sequence analysis of rDNA-ITS. The disease was named Mango Trichothecium roseum Leaf Spot. Assays of biological characteristics showed that the optimum temperature was 24°C and the optimum pH value was 8.0 for mycelium growth. Light was favor to mycelium growth, but the effect was not significant. For mycelium growth, D-mannose was the optimum carbon source, whereas beef extract and peptone were the optimum nitrogen source. The fungus was pathogenic to many common tropical crops, such as star fruit, aloe, sisal, rubber, banana, guava, cassava and litchi, when artificially inoculated.