炭疽病是由炭疽病引起的30多个植物属的严重疾病。据报道,在不同的国家/地区,几种炭疽菌会感染辣椒。尽管中国是最大的辣椒生产国,对当地感染辣椒的物种知之甚少。因此,我们从中国29个省收集了患病的辣椒样本,从中分离出1285株。观察并比较所有菌株的形态特征,和多位点系统发育分析(ITS,ACT,CAL,CHS-1,GAPDH,对选定的代表性菌株进行TUB2和HIS3)。鉴定出15种炭疽菌,与C.fioriniae,C.果糖,C.gloeosporioides,C.Scovillei,C.truncum很普遍。三个新物种,C.conoides,C.罗萨姆,还有C.辽宁,在本文中得到了认可和描述。艾尼玛炭疽病,C.气候,C.内生菌,C.处女膜畸形,C.canum,C.karstii,和念珠菌是第一次从辣椒中报道。从辣椒中分离出的所有物种的致病性得到证实,除了内生菌。本研究提高了对辣椒上炭疽病种类的认识,为我国有效防治辣椒上炭疽病提供了有益的信息。
Anthracnose caused by Colletotrichum species is a serious disease of more than 30 plant genera. Several Colletotrichum species have been reported to infect chili in different countries. Although China is the largest chili-producing country, little is known about the species that have been infecting chili locally. Therefore, we collected samples of diseased chili from 29 provinces of China, from which 1285 strains were isolated. The morphological characters of all strains were observed and compared, and multi-locus phylogenetic analyses (ITS, ACT, CAL, CHS-1, GAPDH, TUB2, and HIS3) were performed on selected representative strains. Fifteen Colletotrichum species were identified, with C. fioriniae, C. fructicola, C. gloeosporioides, C. scovillei, and C. truncatum being prevalent. Three new species, C. conoides, C. grossum, and C. liaoningense, were recognised and described in this paper. Colletotrichum aenigma, C. cliviae, C. endophytica, C. hymenocallidis, C. incanum, C. karstii, and C. viniferum were reported for the first time from chili. Pathogenicity of all species isolated from chili was confirmed, except for C. endophytica. The current study improves the understanding of species causing anthracnose on chili and provides useful information for the effective control of the disease in China.