Identification of Phaeoacremonium aleophillum Phytotoxin Decline Platanus Trees Platanus occidentalies L.  

作　　者：Khalid Hassan Taha 

机构地区：[1]Department of Plant Protection, College of Agriculture and Forestry, University of Mosul, Iraq

出　　处：《Journal of Agricultural Science and Technology(A)》2012年第8期983-987,共5页农业科学与技术（A）

摘　　要：The genus Phaeoacremonium is associated die-back of various woody hosts. In this study, Phaeoaeremonium specie was isolated from necrotic woody tissue of Platanus occidentalies L. （Platanus）. Morphological and cultural characteristics were used to identify the species, which known, and being described as Phaeoacremonium aleophillum. This is the first report on identifying Phaeoacremonium aleophillum from Platanus in Iraq, previously reports accommodate Cephalosporium acremonium from Platanus trees. This specie is able to produce toxic metabolites. Applications of P. aleophillum crude and cell-free filtrates induced severe chlorosis and necrosis on Platanus leaves after 24 hours of treatment with P. aleophillum culture filtrate. A novel phytotoxin was isolated from P. aleophillurn and culture filtrate was identified as galactouronic acid.

关 键 词：Phaeoacremonium aleophillum PLATANUS PHYTOTOXIN galactouronic acid. 

分 类 号：S792.37[农业科学—林木遗传育种] S435.111.4[农业科学—林学]