Species of Botryosphaeria are among the most serious pathogens that affect mango trees and fruit. Several species occur on mangoes, and these are identified mainly on the morphology of the anamorphs. Common taxa include Dothiorella dominicana, D. mangiferae (= Natrassia mangiferae), D. aromatica and an unidentified species, Dothiorella 'long'. The genus name Dothiorella, however, is acknowledged as a synonym of Diplodia. This study aimed to characterize and name the Botryosphaeria spp. associated with disease symptoms on mangoes. To achieve this isolates representing all four Dothiorella spp. mentioned above were compared with the anamorphs of known Botryosphaeria spp., based on conidial morphology and DNA sequence data. Two genomic regions were analyzed, namely the ITS rDNA and beta-tubulin regions. The morphological and molecular results confirmed that the fungi previously identified from mango as species of Dothiorella belong to Fusicoccum. Dothiorella dominicana isolates were identical to isolates of F. parvum (teleomorph = B. parva). A new epithet, namely F. mangiferum, is proposed for isolates previously treated as D. mangiferae or N. mangiferae. Isolates of D. aromatica were identified as F. aesculi (teleomorph = B. dothidea). A fourth Fusicoccum sp. also was identified as those isolates previously known as Dothiorella 'long'. A key is provided to distinguish these species based on anamorph morphology in culture. This study provides a basis for the identification of Botryosphaeria species from mango, which is important for disease control and to uphold quarantine regulations.

译文

:Botryosphaeria的物种是影响芒果树和水果的最严重的病原体之一。芒果上有几种物种,这些物种主要是根据无性型的形态鉴定的。常见的分类群包括Dothiorella dominicana,D。mangiferae(= Natrassia mangiferae),D.aromana和一种不明物种,Dothiorella'long'。然而,Dothiorella属被认为是Diplodia的同义词。这项研究旨在表征和命名Botryosphaeria spp。与芒果的疾病症状有关。为实现此目的,分离株代表了所有四个Dothiorella spp。根据分生孢子的形态和DNA序列数据,将上述的与已知的Botryosphaeria spp。的变形体进行了比较。分析了两个基因组区域,即ITS rDNA和β-微管蛋白区域。形态学和分子结果证实了先前从芒果中鉴定为多硫杆菌属的真菌属于镰刀菌。 Dothiorella dominicana分离株与细小镰刀菌的分离株相同(teleomorph = B. parva)。对于先前被视为芒果D. mangiferae或芒果N. mangiferae的分离株,提出了一种新的称谓,即芒果F. mangiferum。 D.aromatica的分离物被鉴定为F. aesculi(teleomorph = B. dothidea)。第四个Fusicoccum sp。也被鉴定为以前称为Dothiorella'long'的分离株。提供了根据培养中的变形形态来区分这些物种的关键。这项研究为鉴定芒果中的葡萄球菌提供了基础,这对于控制疾病和维护检疫法规很重要。

+1
+2
100研值 100研值 ¥99课程
检索文献一次
下载文献一次

去下载>

成功解锁2个技能,为你点赞

《SCI写作十大必备语法》
解决你的SCI语法难题!

技能熟练度+1

视频课《玩转文献检索》
让你成为检索达人!

恭喜完成新手挑战

手机微信扫一扫,添加好友领取

免费领《Endnote文献管理工具+教程》

微信扫码, 免费领取

手机登录

获取验证码
登录