Rajnish Kumar Verma

Dr. Rajnish Kumar Verma

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 June 2015 in Cryptogamie, Mycologie
Verified
Journal Article
Closed access
SASlavomir Adamcik
Slavomir Adamcik
Lei CaiLei Cai
Lei Cai
DCDyutiparna Chakraborty
Dyutiparna Chakraborty
XCXu-Hui Chen
Xu-Hui Chen
HCH. Van T. Cotter
H. Van T. Cotter
BBBart Buyck
Bart Buyck
The authors describe ten new taxa for science using mostly both morphological and molecular data. In Ascomycota, descriptions are provided for Bambusistroma didymosporum gen. et spec. nov. (Pleosporales), Neodeightonia licuriensis sp. nov. (Botryosphaeriales) and Camposporium himalayanum sp. nov. (Fungi imperfecti). In Zygomycota, Gongronella guangdongensis sp. nov. (Mucorales) is described. Finally, in Basidiomycota descriptions are provided for Boidinia parva sp. nov. and Russula katarinae sp. nov. (Russsulales), Gloiocephala parvinelumbonifolia sp. nov. (Agaricales), Hypochnicium austrosinensis sp. nov. (Polyporales), Phallus ultraduplicatus sp. nov. (Phallales) and Suillus lariciphilus sp. nov. (Boletales).

24 February 2022 in Journal of Fungi
Verified
Journal Article
Open access
PDF file
AGAjay Kumar Gautam
Ajay Kumar Gautam
RVRajnish Kumar Verma
Rajnish Kumar Verma
SAShubhi Avasthi
Shubhi Avasthi
SUSushma
Sushma
YBYogita Bohra
Yogita Bohra
Nakarin SuwannarachNakarin Suwannarach
Nakarin Suwannarach
Fungi are an important and diverse component in various ecosystems. The methods to identify different fungi are an important step in any mycological study. Classical methods of fungal identification, which rely mainly on morphological characteristics and modern use of DNA based molecular techniques, have proven to be very helpful to explore their taxonomic identity. In the present compilation, we provide detailed information on estimates of fungi provided by different mycologistsover time. Along with this, a comprehensive analysis of the importance of classical and molecular methods is also presented. In orderto understand the utility of genus and species specific markers in fungal identification, a polyphasic approach to investigate various fungi is also presented in this paper. An account of the study of various fungi based on culture-based and cultureindependent methods is also provided here to understand the development and significance of both approaches. The available information on classical and modern methods compiled in this study revealed that the DNA based molecular studies are still scant, and more studies are required to achieve the accurate estimation of fungi present on earth.

31 May 2023 in Journal of Fungi
Verified
Journal Article
Open access
PDF file
SAShubhi Avasthi
Shubhi Avasthi
AGAjay Kumar Gautam
Ajay Kumar Gautam
Niranjan MekalaNiranjan Mekala
Niranjan Mekala
RVRajnish Kumar Verma
Rajnish Kumar Verma
Samantha C. KarunarathnaSamantha C. Karunarathna
Samantha C. Karunarathna
Nakarin SuwannarachNakarin Suwannarach
Nakarin Suwannarach
Puccinia, which comprises 4000 species, is the largest genus of rust fungi and one of the destructive plant pathogenic rust genera that are reported to infect both agricultural and nonagricultural plants with severe illnesses. The presence of bi-celled teliospores is one of the major features of these rust fungi that differentiated them from Uromyces, which is another largest genus of rust fungi. In the present study, an overview of the current knowledge on the general taxonomy and ecology of the rust genus Puccinia is presented. The status of the molecular identification of this genus along with updated species numbers and their current statuses in the 21st century are also presented, in addition to their threats to both agricultural and nonagricultural plants. Furthermore, a phylogenetic analysis based on ITS and LSU DNA sequence data available in GenBank and the published literature was performed to examine the intergeneric relationships of Puccinia. The obtained results revealed the worldwide distribution of Puccinia. Compared with other nations, a reasonable increase in research publications over the current century was demonstrated in Asian countries. The plant families Asteraceae and Poaceae were observed as the most infected in the 21st century. The phylogenetic studies of the LSU and ITS sequence data revealed the polyphyletic nature of Puccinia. In addition, the presences of too short, too lengthy, and incomplete sequences in the NCBI database demonstrate the need for extensive DNA-based analyses for a better understanding of the taxonomic placement of Puccinia.

14 June 2022 in Journal of Fungi
Verified
Journal Article
Open access
PDF file
AGAjay Kumar Gautam
Ajay Kumar Gautam
SAShubhi Avasthi
Shubhi Avasthi
RVRajnish Kumar Verma
Rajnish Kumar Verma
SUSushma
Sushma
Niranjan MekalaNiranjan Mekala
Niranjan Mekala
Samantha C. KarunarathnaSamantha C. Karunarathna
Samantha C. Karunarathna
Uromyces is the second-largest plant pathogenic rust genus, is responsible for numerous diseases, and has major effects on both agricultural and non-agricultural plants. The genus is generally characterized by its unicellular teliospores that help to characterize it and distinguish it from another important rust genus, Puccinia. In this study, a global overview of the diversity and distribution of Uromyces is presented based on both online and offline resources. The information obtained was analyzed for numerical and graphical summaries to provide the diversity and distribution of the genus by country and continent. Besides this, broad taxonomical aspects, a brief life cycle, and other comparative aspects on diversity and distribution were also provided. In addition, a phylogenetic analysis based on the ITS and nLSU DNA sequence data available in GenBank and published literature was performed to examine the intergeneric relationships of Uromyces. The results obtained revealed that the rust genus is found distributed over 150 countries, territories, and occupancies of the world on around 647 plant genera belonging to 95 plant families. Phylogenetic studies based on LSU and ITS sequence data revealed that Uromyces species are polyphyletic and require more DNA-based analyses for a better understanding of their taxonomic placement.

30 June 2021 in Phytotaxa
Verified
Journal Article
Closed access
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RCRajeshkumar K. C.
Rajeshkumar K. C.
RVRajnish Kumar Verma
Rajnish Kumar Verma
SBSaranyaphat Boonmee
Saranyaphat Boonmee
SCSajini Chandrasiri
Sajini Chandrasiri
KHKevin D. Hyde
Kevin D. Hyde
NWNalin Wijayawardene
Nalin Wijayawardene
This study introduces, Paradictyocheirospora, a new genus, belonging to the family Dictyosporiaceae with evidence from morphology and phylogenetic analysis of a combined ITS, LSU and TEF1α sequence data. Paradictyocheirospora can be distinguished from allied taxa based on dictyosporous, cheiroid conidia with suprabasal bubble-like hyaline appendages and cylindrical, reduced conidiophores. The new genus is similar to Dictyocheirospora; however, the conidia are smaller with fewer rows (3–6) and have globose, supra-basal appendages. Paradictyocheirospora tectonae forms a distinct lineage basal to Digitodesmium and Dictyocheirospora. Additional new collections from Thane, Maharashtra were morphologically identical and phylogenetically related to Dictyocheirospora nabanheensis, and the latter is a new record from India.

12 June 2024 in New Zealand Journal of Botany
Verified
Journal Article
Closed access
OSOnden P. Sruthi
Onden P. Sruthi
RCRajeshkumar K. C.
Rajeshkumar K. C.
Nakarin SuwannarachNakarin Suwannarach
Nakarin Suwannarach
DHDavid Leslie Hawksworth
David Leslie Hawksworth
NWNalin Wijayawardene
Nalin Wijayawardene
Samantha C. KarunarathnaSamantha C. Karunarathna
Samantha C. Karunarathna