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Search for "NIGROGRANA|fuscidula": 2 articles found in Index.

DIGRA S., NONZOM S. (2023): New record of novel endophyte Nigrograna hydei from the Northern Himalayas, India.   [sterile mycelium, rare, taxonomy, cold desert, Kargil.]  Czech Mycology 75(2): 105-115   (published: 3rd July, 2023)
  abstract   The Northern Himalayas are an exceptionally unique and diverse mountain range with respect to flora, fauna and funga. However, most of the region has been poorly explored. During a mycological survey, a rare endophyte was isolated from healthy leaves of Elaeagnus angustifolia. The species was identified as Nigrograna hydei based on cultural, micro-morphological, and molecular characters. The specimen was recovered as a sterile mycelium and despite trying various sporulation-inducing methods, the isolate failed to sporulate. Therefore, molecular characterisation based on the sequences of both the ITS and LSU region of nuclear ribosomal DNA followed by phylogenetic analysis confirmed the identity of the taxon. So far, this species has only been reported from Thailand and China. This finding adds another record to the world distribution of the species and is the first report from the Indian subcontinent. It also expands our knowledge on its ecology through its association as an endophyte with a new host, Elaeagnus, inhabiting a cold desert in Ladakh.

KOLAŘÍK M. (2018): New taxonomic combinations in endophytic representatives of the genus Nigrograna   [Biatriospora, taxonomy, endophytic fungi]  Czech Mycology 70(2): 123-126   (published: 28th September, 2018)
  abstract   Nigrograna (Ascomycota: Pleosporales), with the type species N. mackinnonii, has been considered a synonym of Biatriospora. Recently, it was shown that these two genera are distinct. In this study, four species earlier described in Biatriospora, i.e. B. antibiotica, B. carollii, B. peruviensis and B. yasuniana, which are phylogenetically related to N. mackinnonii, are combined in Nigrograna. Recently, three teams of authors published eight Nigrograna species almost simultaneously (2016–2017), thus some were not compared phylogenetically. A comparison of available sequences showed that all nine accepted species are unique. It can be concluded that Nigrograna is ecologically diverse, comprising species living as endophytes or saprobes of plants (some of them associated with other fungi living on those plants) as well as species living in marine or estuarine environments.Interestingly, all associations with vascular plants concern angiosperms.

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