Advances in Systematics, Taxonomy, and Conservation of Trichoderma Species

Singh, Sanjay K.; Singh, Paras Nath; Maurya, Deepak Kumar; Rana, Shiwali

doi:10.1007/978-3-030-54758-5_1

Cited by 1 publication

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“…New species, such as Trichoderma amazonicum (Chaverri & Gazis), have gradually been recognized within the complex based on subtle phenotypic or biological characteristics ( Chaverri et al, 2010 ). The taxonomy of Trichoderma has substantially expanded through the use of molecular phylogeny ( Druzhinina et al, 2006 ; Singh et al, 2020 ). Trichoderma spp.…”

Section: Introductionmentioning

confidence: 99%

Endophytic Trichoderma species from rubber trees native to the Brazilian Amazon, including four new species

et al. 2023

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Fungi belonging to the genus Trichoderma have been widely recognized as efficient controllers of plant diseases. Although the majority of isolates currently deployed, thus far, have been isolated from soil, endophytic Trichoderma spp. is considered to be a promising option for application in biocontrol. In this study, 30 endophytic Trichoderma isolates—obtained from the leaves, stems, and roots of wild Hevea spp. in the Brazilian Amazon—were analyzed using specific DNA barcodes: sequences of internal transcribed spacers 1 and 2 of rDNA (ITS region), genes encoding translation elongation factor 1-α (TEF1-α), and the second largest subunit of RNA polymerase II (RPB2). The genealogical concordance phylogenetic species recognition (GCPSR) concept was used for species delimitation. A phylogenetic analysis showed the occurrence of Trichoderma species, such as T. erinaceum, T. ovalisporum, T. koningiopsis, T. sparsum, T. lentiforme, T. virens, and T. spirale. Molecular and morphological features resulted in the discovery of four new species, such as T. acreanum sp. nov., T. ararianum sp. nov., T. heveae sp. nov., and T. brasiliensis sp. nov. The BI and ML analyses shared a similar topology, providing high support to the final trees. The phylograms show three distinct subclades, namely, T. acreanum and T. ararianum being paraphyletic with T. koningiopsis; T. heveae with T. subviride; and T. brasiliensis with T. brevicompactum. This study adds to our knowledge of the diversity of endophytic Trichoderma species in Neotropical forests and reveals new potential biocontrol agents for the management of plant diseases.

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Section: Introductionmentioning

confidence: 99%