Regular enzyme recovery enhances cellulase production by Trichoderma reesei in fed-batch culture

Wang, Bucheng; Jiang, Lu; HeChao, Bai; Yong, Qiang; Yu, Shiyuan

doi:10.1007/s10529-017-2379-1

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…Most Trichoderma spp. are saprotrophic and can colonize a variety of niches, which is greatly facilitated by the synthesis of various lytic enzymes, like cellulases and xylanases [28,[53][54][55]. Because of their ability to colonize the rhizosphere and to penetrate the roots, fungi from Trichoderma genus as opportunistic symbionts may exert positive effects on plant growth, nutrient assimilation, and systemic resistance through the control of numerous plant-pathogenic fungi, (including Fusaria) [56][57][58][59].…”

Section: Fungal Species Identificationmentioning

confidence: 99%

Divergence of Beauvericin Synthase Gene among Fusarium and Trichoderma Species

Urbaniak

Waśkiewicz

Koczyk

et al. 2020

JoF

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Beauvericin (BEA) is a cyclodepsipeptide mycotoxin, showing insecticidal, antibiotic and antimicrobial activities, as well as inducing apoptosis of cancer cell lines. BEA can be produced by multiple fungal species, including saprotrophs, plant, insect and human pathogens, particularly belonging to Fusarium, Beauveria and Isaria genera. The ability of Trichoderma species to produce BEA was until now uncertain. Biosynthesis of BEA is governed by a non-ribosomal peptide synthase (NRPS), known as beauvericin synthase (BEAS), which appears to present considerable divergence among different fungal species. In the present study we compared the production of beauvericin among Fusarium and Trichoderma strains using UPLC methods. BEAS fragments were sequenced and analyzed to examine the level of the gene’s divergence between these two genera and confirm the presence of active BEAS copy in Trichoderma. Seventeen strains of twelve species were studied and phylogenetic analysis showed distinctive grouping of Fusarium and Trichoderma strains. The highest producers of beauvericin were F. proliferatum and F. nygamai. Trichoderma strains of three species (T. atroviride, T. viride, T. koningiopsis) were minor BEA producers. The study showed beauvericin production by Fusarium and Trichoderma species and high variance of the non-ribosomal peptide synthase gene among fungal species from the Hypocreales order.

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