Fusarium ananatum sp nov in the Gibberella fujikuroi species complex from pineapples with fruit rot in South Africa
Fusarium ananatum sp nov in the Gibberella fujikuroi species complex from pineapples with fruit rot in South Africa
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DOI：
10.1016/j.funbio.2010.03.013
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发表时间：
2010-07-01
期刊：
影响因子：
2.5
通讯作者：
Coutinho, Teresa A.
中科院分区：
文献类型：
--
作者：
Jacobs, Adriaana;Van Wyk, Pieter Schalk;Coutinho, Teresa A.
菠萝（Ananas comosus）原产于南美洲，在热带和亚热带地区作为水果作物广泛种植。这种植物易受许多真菌病害的影响，其中最严重的是镰刀菌病。这种疾病是由镰刀菌guttiforme和只发生在南美洲和中美洲。在南非菠萝上发生的类似疾病促使人们重新评估与菠萝果实腐烂相关的镰刀菌。基于翻译延伸因子-1-α组蛋白H3和β-微管蛋白基因区域的序列数据，评估了从巴西和南非采集的菠萝分离株的系统发育关系。分析表明，南非分离株代表了一个不同于巴西分离株的物种。南非分离株的特点是气生菌丝体集中在菌落中心，与巴西分离株不同，巴西分离株的气生菌丝体分布均匀。系统发育和形态学数据都表明，南非菠萝上的这种疾病是由一种新的镰刀菌引起的，这里描述为F。ananatum sp. nov.（c）2010由Elsevier Ltd代表英国真菌学会出版。
Pineapple (Ananas comosus) is native to South America and widely planted as a fruit crop in the tropics and sub-tropics. This plant is susceptible to a number of fungal diseases of which the most severe is fusariosis. The disease is caused by Fusarium guttiforme and occurs only in South and Central America. The occurrence of a similar disease on pineapples in South Africa has prompted a re-evaluation of the Fusarium sp. associated with pineapple fruit rot. Phylogenetic relationships of isolates from pineapples collected in Brazil and South Africa were assessed based on sequence data for the translation elongation factor-1-alpha histone H3 and beta-tubulin gene regions. Analyses showed that the South African isolates represent a species distinct from Brazilian isolates. The South African isolates are characterised by a concentration of aerial mycelium at the centres of the colonies, different to the Brazilian isolates that have an even distribution of aerial mycelium. Both phylogenetic and morphological data show that the disease on pineapple in South Africa is caused by a new Fusarium species described here as F. ananatum sp. nov. (c) 2010 Published by Elsevier Ltd on behalf of The British Mycological Society.