Article
Mycology
Ming-Zhu Dou, Min Li, Ze-Feng Jia
Summary: In this study, the genus Chapsa in China was examined using morphological characteristics, chemical traits, and molecular phylogenetic analysis. A new species to science and two new records to China were identified. The newly discovered species, Chapsa murioelongata, is characterized by specific features and Chapsa wolseleyana was reclassified based on phenotypic traits. Sequence data and phylogenetic analyses supported the position of these species within the Chapsa genus. A key to known Chapsa species in China was provided.
Article
Biology
Komal K. Ingle, Roshinikumar Ngangom, Sanjeeva Nayaka, D. K. Upreti
Summary: The genus Phaeorrhiza is reported for the first time in India, with the discovery of two taxa, P. nimbosa and P. sareptana var. sphaerocarpa, growing in the alpine region of north-western Himalaya. A detailed description and illustrations are provided to aid in their identification.
Article
Mycology
Piotr Osyczka, Anna Lenart-Boron, Piotr Boron, Kaja Rola
Summary: Lichens demonstrate strong selectivity in choosing their algal partners, with the biological properties of the photobiont significantly affecting their habitat requirements. The flexibility in photobiont choice expands the ecological range of lichens and may serve as an important adaptive strategy for colonization of extreme habitats. The presence of specific algae in lichen species is influenced by habitat type and levels of soil pollution, with potential alternative photosynthetic partners like Trebouxia adapting well to metal pollution.
Article
Biochemistry & Molecular Biology
Jasmin Almer, Philipp Resl, Hordur Gudmundsson, Denis Warshan, Olafur S. Andresson, Silke Werth
Summary: Photosymbiodemes are a unique form of lichen symbiosis involving a lichenized fungus, a cyanobacterium, and a green alga. This study examined the gene expression of different sectors of the lichen Peltigera britannica, comparing those with only cyanobacterial photobionts to those with both green algal and cyanobacterial photobionts. The results showed that specific symbiosis partners significantly influenced fungal gene expression, and the symbionts exhibited different responses to temperature increases.
Article
Mycology
Todd J. Widhelm, Felix Grewe, Bernard Goffinet, Mats Wedin, Trevor Goward, Luis F. Coca, Isabel Distefano, Alica Kosuthova, H. Thorsten Lumbsch
Summary: The evolutionary history of the lichenized fungal order Peltigerales, particularly the Collematineae, has been successfully resolved using phylogenomic data, despite conflicting signal in exon trees. Rapid diversification events were identified in the early evolution of the suborder. A minimum subset of exons that could reconstruct phylogenetic relationships with higher support than the complete dataset was identified. Comparisons between the minimum and complete datasets showed similar results in species tree inferences, bipartition analyses, and divergence time estimations, although errors in divergence time estimations were higher in the minimum dataset. Target capture datasets yielded higher support values compared to topologies reconstructed using traditional nuclear and mitochondrial markers.
Article
Soil Science
Lin Xu, Bingjian Zhu, Chaonan Li, Zhichao Zhou, Minjie Yao, Xiaobing Zhou, Junming Wang, Bingchang Zhang, Xiangzhen Li
Summary: The study found that later developed stages of biocrusts exhibited higher values of ecosystem multifunctionality indices, while the diversity of 16S rRNA gene decreased with succession. The increasing relative abundance of non-cyanobacterial photosynthetic organisms was identified as the key predictor driving ecosystem multifunctionality indices during biocrust succession.
Article
Biology
Fatima Razzaq, Kamran Habib, Sidra Aslam, Abdul Nasir Khalid
Summary: As part of a comprehensive study on the diversity of lichens in northern areas of Pakistan using molecular and morphological approaches, four species of the family Graphidaceae were discovered. Phylogenetic analysis revealed two new lichen records for Pakistan, namely Diploschistes candidissimus and Xalocoaocellata, while D. scruposus and D. muscorum are new records for Azad Jammu & Kashmir state.
Article
Plant Sciences
Iram Fayyaz, Najam-ul-sehar Afshan, Fatima Iftikhar, Abdul Rehman Niazi, Abdul Nasir Khalid
Summary: Buellia densipruinosa is a newly described species from the moist temperate forest in the Himalayas, Pakistan. It is distinguished from other species within the genus Buellia based on its morphology, chemistry, and nrITS sequences.
Review
Plant Sciences
Toby Spribille, Philipp Resl, Daniel E. Stanton, Gulnara Tagirdzhanova
Summary: This review explores the exchange of goods and services between fungus and phototroph in lichens and how it contributes to the success of both symbionts and their symbiosis. Lichen fungal symbionts have the unique characteristic of exposing most of their mycelium to an aerial environment. Phototrophs provide carbohydrates to the fungus, which are converted into specific polyols with multiple functions, including growth, respiration, and desiccation tolerance. Fungal symbionts provide protection against herbivory and light stress for phototrophs and influence fungal sex and morphogenesis. These interactions create a multiplayer marketplace that drives symbiont selection and lichen diversification.
Article
Environmental Sciences
Howard S. Neufeld, Fern S. Perkins
Summary: Lichens play a significant role in the biodiversity and functioning of ecosystems. Research on corticolous lichens exposed to elevated CO2 and O3 levels found that their responses were influenced by factors such as host tree species and photosynthetically active radiation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Ecology
Jessica L. Allen, James C. Lendemer
Summary: Several decades of research have shifted the perspective on symbiotic relationships, revealing the dynamism of fungal mutualisms such as mycorrhizae. Lichens, as important fungal mutualisms, require reconceptualization to realize their potential as model systems.
TRENDS IN ECOLOGY & EVOLUTION
(2022)
Article
Multidisciplinary Sciences
Qiuxia Yang, Yanyan Wang, Robert Luecking, H. Thorsten Lumbsch, Zhenyong Du, Yunkan Chen, Ming Bai, Dong Ren, Jiangchun Wei, Hu Li, Yongjie Wang, Xinli Wei
Summary: Lichens are pioneer organisms or stress-tolerant extremophiles, playing a core role in the early formation of terrestrial ecosystems. Epiphytic macrolichens contribute to the water and nutrient cycles in forest ecosystems. However, the evolutionary history of epiphytic macrolichens is poorly documented due to the scarcity of fossil records.
Article
Biology
Iram Fayyaz, Najam-ul-Sehar Afshan, Fatima Iftikhar, Abdul Rehman Niazi, Abdul Nasir Khalid
Summary: Diploschistes viridis sp. nov., discovered in the Himalayan moist temperate forest in Pakistan, is distinct from other species of the genus Diploschistes based on its morphology, chemistry, and ITS sequences.
Article
Ecology
Lamia Boutabia, Mohcen Menaa, Salah Telailia
Summary: The expansion of forests in Djebel El Ghorra massif of El Kala National Park in northeastern Algeria has led to the identification of three distinct forest formations: cork oak stands (Quercus suber), zeen oak stands (Quercus canariensis), and mixed oak (Quercus suber and Quercus canariensis) forest. These forests provide ideal ecological conditions for the colonization of corticolous lichens on the two phorophytes. A systematic survey conducted between 2017 and 2022 resulted in the identification of 141 lichen taxa divided into 30 families through stereo-microscopic examinations and chemical tests.
AFRICAN JOURNAL OF ECOLOGY
(2023)
Article
Multidisciplinary Sciences
Qiuxia Yang, Yanyan Wang, Robert Luecking, H. Thorsten Lumbsch, Zhenyong Du, Yunkang Chen, Ming Bai, Dong Ren, Jiangchun Wei, Hu Li, Yongjie Wang, Xinli Wei
Summary: Lichens are important pioneer organisms and extremophiles that may have played a key role in the early formation of terrestrial ecosystems. Epiphytic macrolichens contribute to water and nutrient cycles in forest ecosystems. However, the evolutionary history of epiphytic macrolichens is poorly documented due to a lack of fossil records.
Article
Plant Sciences
Siljo Joseph, Gopal Prasad Sinha, Sanjeeva Nayaka
Article
Mycology
P. Gupta, P. Randive, S. Nayaka, R. Daimari, S. Joseph, M. K. Janarthanam
Article
Mycology
Rupjyoti Gogoi, Siljo Joseph, Manas Pratim Choudhury, Sanjeeva Nayaka, Farishta Yasmin
Article
Environmental Sciences
Rebecca Daimari, Pranamika Bhuyan, Sharfaa Hussain, Sanjeeva Nayaka, M. A. Jafar Mazumder, Raza R. Hoque
Summary: The study revealed significant anatomical damage in lichen samples transplanted in larger cities, with a decrease in chlorophyll content and an increase in electrical conductivity in samples exposed to high traffic density areas. Severe accumulation of Cd was observed in all transplants, with enrichment of elements such as Cd, Pb, and Zn in lichen samples from both cities.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2021)
Article
Multidisciplinary Sciences
Manish Ranjan, Devanshi Khokhani, Sanjeeva Nayaka, Suchi Srivastava, Zachary P. Keyser, Ashish Ranjan
Summary: The pectinolytic genus Dickeya includes pathogenic species with complex virulence gene regulation processes. Extracellular polysaccharides and lipopolysaccharides play a significant role in their virulence. Study reveals diversity and structural organization of capsule and lipopolysaccharide biosynthetic gene clusters in Dickeya strains.
Article
Biotechnology & Applied Microbiology
Hitendra Yadav, Sanjeeva Nayaka, Manish Dwivedi
Summary: Usnea longissima, a fruticose lichen, exhibits significant antibacterial and antifungal activities, potentially containing novel antimicrobial components, and can be used as food supplements to treat human diseases.
JOURNAL OF PURE AND APPLIED MICROBIOLOGY
(2021)
Article
Food Science & Technology
Shweta Bharti, Sanjeeva Nayaka, Rajesh Kumar
Summary: Usnea longissima, a fruticose lichen in the temperate region, shows antimicrobial, antiquorum sensing, and antioxidant activities. The methanolic extract exhibits the strongest antimicrobial activity against Agrobacterium tumefaciens and Candida albicans, and also inhibits biofilm formation in Chromobacterium violaceum and certain bacteria.
JOURNAL OF MICROBIOLOGY BIOTECHNOLOGY AND FOOD SCIENCES
(2022)
Article
Plant Sciences
Pallavi Randive, Gaurav K. Mishra, Sanjeeva Nayaka, D. K. Upreti, M. K. Janarthanam
Summary: The study in Goa revealed the occurrence of 79 species of pyrenocarpous lichens, with five new records for India. South Goa is fairly well explored for lichens, representing 71 species from 11 localities. Out of 165 lichen species in Goa, 48% are pyrenocarpous lichens.
PLANT SCIENCE TODAY
(2021)
Article
Biodiversity Conservation
Suparna Biswas, Rebecca Daimari, Pungbili Islary, Sanjeeva Nayaka, Dalip Kumar Upreti, Pranjit Kumar Sarma
Summary: This study focuses on the lichen genus Pyrenula Ach. from the Dhubri district of Assam in North-East India. 12 species of Pyrenula were recorded, including a newly reported species P. chlorospila (Nyl.) Arnold. Morphological comments and distribution information of this species are provided.
Article
Plant Sciences
Sanjeeva Nayaka, Ambikesh Debnath
Summary: Cyphellostereum indicum, a new species of basidiolichen, was discovered in Arunachal Pradesh, India. It is characterized by its habitat on the ground, the cyanobacteria Rhizonema as its photobiont, and solitary hymenophores that are white to cream-colored and flabellate in shape. The species also has thin-walled, smooth, simple, irregular to pip-shaped basidiospores measuring 3.18-4.9 x 2.06-2.9μm. Phylogenetic analysis confirms its distinct position within the genus Cyphellostereum, different from any previously reported species. Cyphellostereum indicum is the third basidiolichen species reported from India.
Article
Plant Sciences
Vishal Kumar, Roshinikumar Ngangom, Sanjeeva Nayaka, Komal K. Ingle
Summary: This article describes a new species of Rinodina from India, as well as eight additional species of the genus reported for the first time in India. Detailed descriptions, illustrations, and distribution information are provided for the new species and new records, along with a key to all Rinodina species known from India.
Article
Cell Biology
Khem Chand Saini, Felix Bast, Sanjeeva Nayaka, Ajay Kumar Gautam
Summary: In this study, D. miniatum samples from the Indian Himalayas were analyzed to identify the mycobiont and their primary photobiont, Diplosphaera chodatii, using morphological and molecular methods. This is the first study of photobiont diversity associated with D. miniatum in India.
Article
Plant Sciences
Gaurav K. Mishra, Sanjeeva Nayaka, Dalip K. Upreti
Summary: Myriospora himalayensis is described as a new species with distinct characteristics, only found in the Western Himalayan region of India. A key to all known species of Myriospora from the world is provided for further reference.
Article
Plant Sciences
Roshinikumar Ngangom, Sanjeeva Nayaka, Rupjyoti Gogoi, Komal Kumar Ingle, Prashant Kumar Behera, Farishta Yasmin
PLANT SCIENCE TODAY
(2020)
Article
Cell Biology
Chitralekha Nag Dasgupta, Vinay Kumar Singh, Sanjeeva Nayaka, Shyam Kishore, Seshu Lavania
