The diversity of Trichoderma species from soil in South Africa, with five new additions.

Abstract:

:Fourteen Trichoderma (Hypocreales) species were identified during a survey of the genus in South Africa. These include T. afroharzianum, T. asperelloides, T. asperellum, T. atrobrunneum, T. atroviride, T. camerunense, T. gamsii, T. hamatum, T. koningii, T. koningiopsis, T. saturnisporum, T. spirale, T. virens, and T. viride. Ten of these species were not known to occur in South Africa prior to this investigation. Five additional species were novel and are described here as T. beinartii, T. caeruleimontis, T. chetii, T. restrictum, and T. undulatum. These novel Trichoderma species display morphological traits that are typical of the genus. Based on molecular identification using calmodulin, endochitinase, nuc rDNA internal transcribed spacers (ITS1-5.8S-ITS2), RNA polymerase II subunit B, and translation elongation factor 1-α gene sequence data, T. beinartii, T. caeruleimontis, and T. chetii were found to belong to the Longibrachiatum clade, whereas T. restrictum is a member of the Hamatum clade. Trichoderma undulatum occupies a distinct lineage distantly related to other Trichoderma species. Strains of T. beinartii and T. chetii were isolated previously in Hawaii and Israel; however, T. caeruleimontis, T. restrictum, and T. undulatum are so far known only from South Africa.

journal_name

Mycologia

journal_title

Mycologia

authors

du Plessis IL,Druzhinina IS,Atanasova L,Yarden O,Jacobs K

doi

10.1080/00275514.2018.1463059

subject

Has Abstract

pub_date

2018-05-01 00:00:00

pages

559-583

issue

3

eissn

0027-5514

issn

1557-2536

journal_volume

110

pub_type

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