Endolichenic fungal diversity associated with some lichens of the Western Ghats

Rajulu, M. B. Govinda; Thirunavukkarasu, N.; Kumar, Subramanya Shravan; Kaur, Tanveer; Reddy, M. Sudhakara; Suryanarayanan, T. S.

doi:10.1055/a-1045-1989

Cited by 4 publications

(2 citation statements)

References 40 publications

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“…Several studies observed Sordariomycetes-dominant patterns in ELF communities [ 8 , 15 , 39 , 40 , 41 ]. The most abundant species, Daldinia childiae complex, was isolated from all individual lichen samples and under all isolation conditions.…”

Section: Discussionmentioning

confidence: 99%

Effect of Isolation Conditions on Diversity of Endolichenic Fungal Communities from a Foliose Lichen, Parmotrema tinctorum

Yang

Kim

et al. 2021

JoF

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Endolichenic fungi (ELF) are emerging novel bioresources because their diverse secondary metabolites have a wide range of biological activities. Metagenomic analysis of lichen thalli demonstrated that the conventional isolation method of ELF covers a very limited range of ELF, and the development of an advanced isolation method is needed. The influence of four variables were investigated in this study to determine the suitable conditions for the isolation of more diverse ELF from a radially growing foliose lichen, Parmotrema tinctorum. Four variables were tested: age of the thallus, severity of surface-sterilization of the thallus, size of a thallus fragment for the inoculation, and nutrient requirement. In total, 104 species (1885 strains) of ELF were isolated from the five individual thalli of P. tinctorum collected at five different places. Most of the ELF isolates belong to Sordariomycetes. Because each part of lichen thallus (of different age) has unique ELF species, the whole thallus of the foliose lichen is needed to isolate diverse ELF. Moderate sterilization is appropriate for the isolation of diverse ELF. Inoculation of small fragment (1 mm2) of lichen thallus resulted in the isolation of highest diversity of ELF species compared to larger fragments (100 and 25 mm2). Moreover, ELF species isolated from the small thallus fragments covered all ELF taxa detected from the medium and the large fragments in this study. The use of two media—Bold’s basal medium (nutrient poor) and potato dextrose agar (nutrient rich)—supported the isolation of diverse ELF. Among the tested variables, size of thallus fragment more significantly influenced the isolation of diverse ELF than other three factors. Species composition and richness of ELF communities from different lichen thalli differed from each other in this study.

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Section: Discussionmentioning

confidence: 99%

Effect of Isolation Conditions on Diversity of Endolichenic Fungal Communities from a Foliose Lichen, Parmotrema tinctorum

Yang

Kim

et al. 2021

JoF

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“…For example, among the Antarctic lichens, Park et al (2015) reported Arthoniomycetes, Eurotiomycetes, and Lecanoromycetes as the most common classes [54], whereas in a later study, Yu et al (2018) found Leotiomycetes, Sordariomycetes, and Dothideomycetes to be abundant [22]. Similarly, Muggia et al (2016) found that Chaetothyriomycetes and Dothideomycetes were the major fungal classes among rock-inhabiting lichens in the alpine area, whereas Rajulu et al (2019) found Sordariomycetes, Dothideomycetes, and Eurotiomycetes to be prevalent among lichens in the Western Ghats, India [55,56]. The findings of these studies show that the environment, growth substrate, and a variety of other abiotic variables influence the fungal diversity associated with lichens.…”

Section: Discussionmentioning

confidence: 95%

Fungal Diversity Associated with Thirty-Eight Lichen Species Revealed a New Genus of Endolichenic Fungi, Intumescentia gen. nov. (Teratosphaeriaceae)

Wang

Liu

et al. 2023

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Fungi from the Teratosphaeriaceae (Mycosphaerellales; Dothideomycetes; Ascomycota) have a wide range of lifestyles. Among these are a few species that are endolichenic fungi. However, the known diversity of endolichenic fungi from Teratosphaeriaceae is far less understood compared to other lineages of Ascomycota. We conducted five surveys from 2020 to 2021 in Yunnan Province of China, to explore the biodiversity of endolichenic fungi. During these surveys, we collected multiple samples of 38 lichen species. We recovered a total of 205 fungal isolates representing 127 species from the medullary tissues of these lichens. Most of these isolates were from Ascomycota (118 species), and the remaining were from Basidiomycota (8 species) and Mucoromycota (1 species). These endolichenic fungi represented a wide variety of guilds, including saprophytes, plant pathogens, human pathogens, as well as entomopathogenic, endolichenic, and symbiotic fungi. Morphological and molecular data indicated that 16 of the 206 fungal isolates belonged to the family Teratosphaeriaceae. Among these were six isolates that had a low sequence similarity with any of the previously described species of Teratosphaeriaceae. For these six isolates, we amplified additional gene regions and conducted phylogenetic analyses. In both single gene and multi-gene phylogenetic analyses using ITS, LSU, SSU, RPB2, TEF1, ACT, and CAL data, these six isolates emerged as a monophyletic lineage within the family Teratosphaeriaceae and sister to a clade that included fungi from the genera Acidiella and Xenopenidiella. The analyses also indicated that these six isolates represented four species. Therefore, we established a new genus, Intumescentia gen. nov., to describe these species as Intumescentia ceratinae, I. tinctorum, I. pseudolivetorum, and I. vitii. These four species are the first endolichenic fungi representing Teratosphaeriaceae from China.

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Study on endolichenic fungal assemblage in Parmotrema and Heterodermia lichens of Shivamoga, Karnataka

Pushpavathi,

Krishnamurthy

2024

Mol Biol Rep

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Endolichenic fungal diversity associated with some lichens of the Western Ghats

Cited by 4 publications

References 40 publications

Effect of Isolation Conditions on Diversity of Endolichenic Fungal Communities from a Foliose Lichen, Parmotrema tinctorum

Effect of Isolation Conditions on Diversity of Endolichenic Fungal Communities from a Foliose Lichen, Parmotrema tinctorum

Fungal Diversity Associated with Thirty-Eight Lichen Species Revealed a New Genus of Endolichenic Fungi, Intumescentia gen. nov. (Teratosphaeriaceae)

Study on endolichenic fungal assemblage in Parmotrema and Heterodermia lichens of Shivamoga, Karnataka

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