期刊论文

中文

植物病理学报

0412-0914

2012

42

2

120-125

10.3969/j.issn.0412-0914.2012.02.002

本校为第一机构

2009年8月湖南省芷江县线果型辣椒品种红秀2003未成熟果实上发生了一种新炭疽病。典型病斑长椭圆状,其中央呈成片黄褐色粉末,外围粉红色小点呈同心圆排列,边缘水渍状。8个分离菌株(HNZJ001-HNZJ008)培养时菌落初呈白色,渐变为浅红色,后期加深,具明显灰黑色同心轮纹。分生孢子盘无刚毛,分生孢子单胞,大小为15.8μm×4.1μm,含2~7个油球,一端稍尖。分离菌株HNZJ001针刺接种,在离体的成熟果和未成熟果上均产生病斑,而作为对照的胶孢炭疽菌Collectotrichum gloeosporioides菌株LSQ1不能侵染未成熟果。核糖体RNA基因内转录间隔区(ITS)的PCR产物经测序后做BLAST分析,结果表明该菌与尖孢炭疽菌C.acutat...

A new anthracnose disease was found on immature fruits of chili pepper （ Cayenne pepper cv. Hongxiu 2003, line fruited） in Zhijiang county, Hunan, in August of 2009. Typical lesion was long oval in shape with tawny powder at the center, concentric pink dot periphery and outer water soaked zone. All 8 iso-lates（HNZJ001-HNZJ008） showed the colonies white at the early stage, then pink, finally dark with obvious grey black concentric rings. No seta was observed on acervuli. Conidia were single-celled, 15. 8 ixm x4. 1 in size, with a subacute en...