Natural populations of the entomopathogenic fungus Beauveria bassiana in Chinese forest ecosystems are diverse and reveal equal frequencies of mating types within phylogenetic species

Cai, Yuchen; Nie, Yong; Gao, Yang; Huang, Bo

doi:10.1016/j.funeco.2021.101139

Cited by 5 publications

(3 citation statements)

References 29 publications

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“…Currently, an increasing number of studies focus on fungal diversity and ecological distribution [3,4,[42][43][44][45][46][47][48], which provides a foundation to deeply understand the kingdom Fungi. Although a total of 46 species are described in Absidia, their ecological distribution has still not been unraveled.…”

Section: Discussionmentioning

confidence: 99%

Three New Species of Absidia (Mucoromycota) from China Based on Phylogeny, Morphology and Physiology

et al. 2022

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Species of Absidia are distributed widely in the environment, while their diversity is insufficiently studied. Three new species, A. frigida, A. gemella and A. longissima, are proposed herein from Xinjiang and Yunnan in China based on phylogenetic, morphological and physiological evidence. According to maximum likelihood (ML), maximum parsimony (MP) and Bayesian inference (BI) analyses, the phylogenetical results suggest that A. frigida, A. gemella and A. longissima are closely related to A. psychrophilia, A. turgida and A. zonata and A. koreana, respectively, based on ITS and LSU rDNA sequences. Absidia frigida is characterized by a lower growth temperature, which does not grow above 24 °C. It differs from A. psychrophilia by sporangiophores, sporangia, columellae, collars and projections. Absidia gemella is distinguished from A. turgida by hypha, sporangiospores, sporangia, projections and sporangiophores. Absidia longissima is discriminated from A. zonata and A. koreana by sporangiophores, columellae and collars. The three new species are described and illustrated in this article.

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Section: Discussionmentioning

confidence: 99%

Three New Species of Absidia (Mucoromycota) from China Based on Phylogeny, Morphology and Physiology

et al. 2022

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“…B. bassiana has been commercially used to control many harmful insect pests; as an important entomopathogenic fungus, it has been A comparison of 488 isolates of Chinese B. bassiana sensu stricto from five sites showed that all the isolates were identified as five distinct phylogenetic lineages, including Europe/North Africa 1, Asia 3, Asia 4, AFNEO_1 and North America based on their geographic origin (Cai et al, 2022). The SFJS01 isolate of B. bassiana from S. frugiperda in China is 2022 not genetically different from most available isolates worldwide except two isolates from China and one from Malaysia.…”

Section: Does a Newly Invasive Pest Have A High Risk Of Pathogen Infe...mentioning

confidence: 99%

Characterization of entomopathogenic fungi from invasive fall armyworm in China and their risk to native pests

Sun

Zhang

Niu

et al. 2023

J Applied Entomology

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The role of pathogens in the successful invasion of pests has received increasing attention. Previous hypotheses on parasite‐related invasion mainly focus on the lack of parasites against invasive pests or the introduction of parasites with a higher risk to native pests. Fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), is a new invasive pest in China. Here, we investigated pathogen infection in eight natural populations of FAW in China, isolated and characterised the pathogens, and then evaluated the infection risk of the pathogens to native pests. The pathogen infection frequencies in FAW were very low (0.32%); only two individuals were found to have typical symptoms of fungal infection, and the fungi were identified as Beauveria bassiana and Metarhizium rileyi. Internal transcribed spacer sequence‐based analysis showed that among 44 B. bassiana isolates worldwide, the SFJS01 isolate was genetically different from only 3 isolates. Among all 13 isolates of M. rileyi from FAW, including the SFGX01 isolate, there was no significant differentiation. Comparison of the mortality caused by B. bassiana SFJS01 or M. rileyi SFGX01 against S. frugiperda, Spodoptera litura, Bemisia tabaci, Laodelphax striatellus and Nilaparvata lugens showed that the new isolates all had the highest virulence to S. frugiperda and the lowest virulence to S. litura, a native pest closely related to FAW. The findings indicated that pathogens isolated from FAW did not pose a high risk to native pests and that they did not play a key role in the successful invasion of the FAW in China.

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“…The Guniujiang National Nature Reserve (29°59′-30°06′N, 107°15′-107°34′E), occupying a distinctive ecological niche within a transitional humid zone that spans from the middle subtropic to the north subtropic, is renowned as the gene bank of animals and plants in East China [25]. The region experiences an annual mean temperature of 14.9℃ and receives an annual mean precipitation of 1600-1700 mm.…”

Section: Study Sitesmentioning

confidence: 99%

Root nodules of Lindera aggregate select specific microbiota for nitrogen fixation and nutrition metabolism

Luo,

Gong,

et al. 2023

Preprint

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Plants have the capability to assemble microbiota in the rhizosphere soil (RS) and subsequently select specific microbial communities in the root endosphere (ES). However, the difference in the microbial community composition among root microhabitats remain inadequately elucidated despite their critical roles in the plant-microbiota feedback. In this study, we initially assessed fungal and bacterial communities in ES and RS of Lindera aggregate, aiming to investigate the microbial community composition and ecological functions of diverse root microhabitats using amplicon sequencing and multivariate analysis. Our findings revealed a significant reduction in the fungal diversity in ES compared to RS, with the lowest diversity observed in root nodules (RN). Additionally, the bacterial community composition of lateral roots (LR) exhibited significant distinctions when compared to RN. Further analysis indicated that the entire microbial networks of RN displayed a higher total number of nodes, edges, and modularity, albeit with a lower density in comparison to those in LR. Moreover, the potential functional composition in RS was significantly different from that of ES. Bacteria and fungi in ES play an active part in carbon, nitrogen, sulfur, and iron respiration, especially in nitrogen fixation. Altogether, our study unveiled that root microhabitats of the L. aggregate could recruit specific microbial communities, thereby regulating nutrient absorption and metabolism. This insight enhances our understanding of the selective influence that plants exert on soil microorganisms.

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Natural populations of the entomopathogenic fungus Beauveria bassiana in Chinese forest ecosystems are diverse and reveal equal frequencies of mating types within phylogenetic species

Cited by 5 publications

References 29 publications

Three New Species of Absidia (Mucoromycota) from China Based on Phylogeny, Morphology and Physiology

Three New Species of Absidia (Mucoromycota) from China Based on Phylogeny, Morphology and Physiology

Characterization of entomopathogenic fungi from invasive fall armyworm in China and their risk to native pests

Root nodules of Lindera aggregate select specific microbiota for nitrogen fixation and nutrition metabolism

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