Udeni Jayalal

Udeni Jayalal
Sabaragamuwa University of Sri Lanka | SUSL · Department of Natural Resorces

BSc (Hons) MSc PhD M.Biol

About

60
Publications
26,456
Reads
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309
Citations
Additional affiliations
January 2014 - December 2015
Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka
Position
  • Lecturer
January 2014 - December 2015
Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka
Position
  • Lecturer
January 2014 - December 2015
Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka
Position
  • Lecturer

Publications

Publications (60)
Conference Paper
Full-text available
Bioactivities of lichen inhabiting fungi are being harnessed for applications in various areas worldwide. Due to increasing microbial resistance to commonly used antibiotics and reduced effectiveness of standard drugs, the achievement of natural bioactive compounds has been paid more attention. Therefore, it is timely to explore the antimicrobial p...
Article
Full-text available
Culture techniques are vital in both traditional and modern fungal taxonomy. Establishing sexual–asexual links and synanamorphs, extracting DNA and secondary metabolites are mainly based on cultures. However, it is widely accepted that a large number of species are not sporulating in nature while others cannot be cultured. Recent ecological studies...
Article
Full-text available
Collema Weber ex F.H. Wigg is scarcely scattered throughout South Korea. However, a detailed taxonomic or revisionary study has not been carried out for almost two decades. The present study was based on specimens deposited in the lichen herbarium at Korean Lichen Research Institute, which were identified using recent literature. In this revisionar...
Article
Full-text available
Introduction. Medicinal utility of lichens is ascribed to the presence of various secondary metabolites of low molecular weight and they have been used in traditional medicine including Ayurveda in the treatment of wounds and skin disorders. Despite the urgent need to effectively address the antibiotic resistance worldwide, the discovery of new ant...
Conference Paper
Full-text available
Sri Lanka is a lichen hotspot for over 1,200 species. Lichen is a symbiotic association between a fungal partner and a photosynthetic partner. Lichen inhabiting fungi may reside in lichens without involving in the symbiosis. Unique secondary metabolites, especially from lichen inhabiting fungi are reputed for antimicrobial, anti-inflammatory, anti-...
Article
Full-text available
The website http://outlineoffungi.org, is launched to provide a continuous up-to-date classification of the kingdom Fungi (including fossil fungi) and fungus-like taxa. This is based on 1516 recent publications and on the outline of fungi and fungus-like taxa published recently (Mycosphere 11, 1060-1456, Doi: 10.5943/mycosphere/11/1/8). The website...
Preprint
Full-text available
This article provides an outline of the classification of the kingdom Fungi (including fossil fungi. i.e. dispersed spores, mycelia, sporophores, mycorrhizas). We treat 19 phyla of fungi. These are Aphelidiomycota, Ascomycota, Basidiobolomycota, Basidiomycota, Blastocladiomycota, Calcarisporiellomycota, Caulochytriomycota, Chytridiomycota, Entomoph...
Poster
Groundnut (Arachis hypogaea L.) is a food legume that is widely grown in tropical countries that fix atmospheric nitrogen through symbiotic relationship with Rhizobia. In order to get a sufficient yield from groundnut cultivation, it is necessary to apply nitrogen fertilizer (urea). Modern intensive agricultural systems use substantial amounts of c...
Article
Full-text available
Lichen genus Stereocaulon (Schreb.) Hoffm is distributed throughout the world. Although 15 Stereocaulon species have been recorded in Korea, no detailed taxonomic or revisionary research has been conducted for nearly two decades. In this study, we collected 260 putative Stereocaulon spp. samples and identified the species based on morphological, ch...
Article
Full-text available
Horton Plains National Park (HPNP) has been declared as a world heritage site, because of its unique biodiversity. Die-back of certain areas of this park is widely believed to be due to acidic precursor depositions carried over from other parts of the country and also from neighboring countries. Air pollution data for the two pollutants, NO2 and SO...
Article
Full-text available
Data on 54 new for China, India, Korea and Russia species of lichen-forming and lichenicolous fungi, including 22 new for science taxa of lichen-forming and lichenicolous fungi, i.e.: Acarospora ulleungdoensis, Amandinea trassii, Aspicilia geumodoensis, Biatora ivanpisutii, Caloplaca patwolseleyae, Catillaria ulleungdoensis, Coenogonium agonimieoid...
Article
Full-text available
Preliminary results are presented of a project aiming to explore the lichen biodiversity in Sri Lanka. The following mostly corticolous (one saxicolous) new species are described: Arthonia karunaratnei with dark brown, round apothecia in groups that are surrounded by a bright orange area, with ascospores 2-septate, 9.0–10.5 × 3.5–4.5 μm; Enterograp...
Conference Paper
Carbofuran has been detected in ground, surface and rain waters, in soils, air, foods and wildlife as a result of its widespread use. Therefore, the degradation process of Carbofuran is very important to maintain the balance of the ecosystem and its sustainability. In soils, biodegradation of Carbofuran is activated by bacterial populations, partic...
Poster
Microorganisms are of great importance in the production of industrial enzymes, such as amylase, cellulase, protease, lipase, etc. Amylases are of the most important enzymes used in Biotechnology. These starch degrading amylolytic enzymes are vital in industries dealing with food, fermentation, textile, paper, pharmaceuticalsand sugar. Microbial en...
Article
Full-text available
Lichens produce various unique chemicals that can be used for pharmaceutical purposes. To screen for novel lichen secondary metabolites showing inhibitory activity against lung cancer cell motility, we tested acetone extracts of 13 lichen samples collected in Chile. Physciosporin, isolated from Pseudocyphellaria coriacea (Hook f. & Taylor) D.J. Gal...
Article
Full-text available
There is little available information on lichen diversity and air quality in forests in South Korea. To address this, the present study aims to correlate corticolous lichen diversity with air quality in selected forests in South Korea. Two sites located on Jeju Island and one site located at Mt. Hambaek, Kangwon Province were selected for this stud...
Article
Full-text available
Based on new collections of Graphidaceae originating from Horton Plains National Park in Sri Lanka, six new species are described: Chapsa thambapanni Weerakoon, Jayalal & Lücking, differing from C. laemensis in the larger ascomata and ascospores produced in numbers of 2–4 per ascus; Fissurina lumbschiana Weerakoon, Jayalal & Lücking, differing from...
Article
Full-text available
In the genus Xanthoparmelia, species boundaries are based on morphological and chemical features such as the presence and/or absence of secondary metabolites, diagnostic reproductive structures, isidia morphology, and color of lower surface. Two new species of Xanthoparmelia are described from South Korea, X. kolriana with cylindrical isidia contai...
Article
Full-text available
Leptogium (Ach.) Gray is distributed throughout South Korea; however, for nearly two decades no detailed taxonomic or revisionary research on this lichen genus has been conducted. This study examined the specimens deposited in the lichen herbarium at the Korean Lichen Research Institute, and samples were identified using descriptions recently publi...
Article
Full-text available
Sticta (Schreber.) Ach. is one of the common lichen genera in tropical and subtropical regions, but not in the Korean Peninsula. For almost two decades, no detailed taxonomic or revisionary study has been done on this genus. This study was based on the specimens deposited in the lichen herbarium at the Korean Lichen Research Institute, and the samp...
Article
Full-text available
Graphis upretii is a new lichen species discovered in Vietnam. The species is characterized by a loosely corticate, rough, whitish grey to greyish green thallus, elongate and irregularly branched lirellae with an apically thin complete thalline margin (negrosina morph), laterally carbonized, entire proper exciple, clear hymenium, hyaline, 16~20 tra...
Article
Full-text available
Three lichens, Fulgensia desertorum, Rinodina bischoffii and Seirophora orientalis, were reported from the Shapotou area, desert region of China, and they are, new to Chinese lichen flora. The taxonomical characters, ecology and distribution of the three taxa are provided.
Article
Full-text available
The current study describes seven species that are new to the lichen mycota of South Korea. A taxonomic description of Arthonia excipienda, A. radiata, Arthothelium ruanum, Enterographa leucolyta, Fissurina elaiocarpa, Rinodina oleae, and Thelotrema porinaceum was given and supported by distribution, ecology, and illustrations. Each species was com...
Article
Full-text available
South Korea is covered primarily by temperate vegetation; therefore, foliicolous lichens may not be expected to play an important role in its lichen flora. However, this study describes four foliicolous lichen species, Strigula concreta, S. macrocarpa, S. melanobapha, and S. subelegans, which are new to South Korea. These findings will lead to furt...
Article
Full-text available
The status of Graphis (Ostropales: Graphidaceae) in Vietnam is presented, based on literature and observation of recently collected specimens. Eleven new records of the genus are described for the country. All important diagnostic characters of species are documented and supported by distribution, ecology, and illustrations. A key to the seventeen...
Article
Full-text available
Seven new records of foliose lichens are reported from Chu Yang Sin National Park of Dak Lak province in Vietnam. Morphological, anatomical and chemical characteristics are described for Heterodermia obscurata, Hypotrachyna flavida, Leptogium ulvaceum, Parmotrema sancti- angelii, Parmeliella brisbanensis, Physma byrsaeum, and Sticta marginifera.
Article
Full-text available
Nine species of Fissurina from Vietnam are briefly commented on. Fissurina dumastii, F. dumastioides, F. instabilis, F. rubiginosa, and F. undulata are recorded as new for the Vietnam lichen biota. Characteristic morpho-anatomical and chemical features are described and summarized in an artificial key to all known taxa of Fissurina from Vietnam.
Article
Full-text available
Acanthothecis salazinica and Diorygma archeri are described from Vietnam. The former is characterized by having a leprose thallus, creamish to whitish, entire, epruinose labia, a slit-like disc, a hyaline to brown, entire proper exciple, warty periphysoids, 8-spored asci, and 28–30-loculate, hyaline, I− ascospores, 70–120×7–14 µm in size. The latte...
Article
Full-text available
A saxicolous Graphis discovered in the southern part of South Korea is described as new to science. The new species, Graphis koreana sp. nov., is characterized by a green to brownish green, thick, rimose thallus, completely carbonized proper exciple, trans-septate to submuriform ascospores and the presence of norstictic acid.
Article
Full-text available
Usnea Adans. is a somewhat rare lichen in South Korea, and, in nearly two decades, no detailed taxonomic or revisionary study has been conducted. This study was based on the specimens deposited in the lichen herbarium at the Korean Lichen Research Institute, and the samples were identified using information obtained from recent literature. In this...
Article
Full-text available
Two species of the lichen genus Dirinaria (Tuck.) Clem. are recognized in the South Korean lichen mycota, viz: D. applanata and D. picta. Descriptions of each species with their morphological, anatomical, and chemical characteristics together with molecular analysis and a key to known Dirinaria species are presented. D. picta is recorded from South...
Article
Full-text available
The following new species for the lichen genus Graphis in Korea are reported: G. chlorotica, G. nanodes and G. tenuirima. A brief description of these species, together with their distribution, ecology, and illustrations are provided. A key to all known species of this genus from Korea is also presented.
Article
Full-text available
Hypotrachyna (Vainio) Hale is a somewhat rare lichen genus found on the Korean Peninsula. Since it was first recorded more than two decades ago, no detailed taxonomic or revisionary study of the genus has been conducted. Thus, the present study was conducted to carry out a detailed taxonomic and revisionary study of Hypotrachyna in South Korea. Thi...
Article
Full-text available
Parmotrema A. Massal. is a common lichen genus scattered throughout the Korean Peninsula; however, no detailed taxonomic or revisionary study of this genus has been conducted for nearly two decades. Therefore, this study revised the taxonomy of this genus based on specimens deposited in the lichen herbarium at the Korean Lichen Research Institute a...
Article
Full-text available
The present account briefly describes two crustose lichen species new to South Korea. Detailed taxonomic descriptions of Leiorreuma exaltatum and Trapelia coarctata, supported by distribution, ecology and illustrations, are provided. Both species were collected from warm-temperate, humid forests of Jeju Island.
Article
Full-text available
Roccella minuta is newly described from Sri Lanka. This species has a restricted distribution in North Central of Sri Lanka where it grows on rocks in an area with historic monuments.
Article
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Eight new records of crustose lichens are reported from Dak Lak, Dak Nong, and Vinh Phuc provinces in Vietnam. Descriptions of Diorygma hieroglyphicum, Letrouitia leprolytoides, L. transgressa, Ocellularia perforata, Opegrapha robusta, Platythecium colliculosum, P. dimorphodes, and Syncesia farinacea include morphological, anatomical, chemical char...
Article
Full-text available
Myelochroa (Asahina) Elix & Hale is a common foliose lichen genus found on the Korean Peninsula. Since it was first recorded nearly two decades ago, no detailed taxonomic or revisionary study of the genus has been conducted. Thus, the current study was conducted to carry out a detailed taxonomic and revisionary study of Myelochroa in South Korea. T...
Article
Full-text available
This study illustrates the status of thelotremoid Graphidaceae in South Korea. The taxonomy and systematics of thelotremoid lichens in the country have recently advanced greatly. Following the earlier known taxa from the group, four new records of the genus Thelotrema are reported and described briefly. An artificial key for all known species under...
Article
Full-text available
The lichen species Polychidium muscicola was found in South Korea for the first time and this is the first record of the genus Polychidium from the Korean peninsula. This species is characterized by a dichotomously branched minute thallus with clustered cells of Nostoc as the photobiont. A detailed description and illustrations of this species are...
Article
Full-text available
This paper provides a description of Opegrapha herbarum, Opegrapha viridis and Phaeographis subdividens, all newly identified in the Republic of Korea. The characteristic features of O. herbarum include Varia-type asci, Subelevata-type ascospores, a lack of secondary metabolites and a saxicolous habitat. O. viridis possesses Calcarea-type asci, Vul...
Article
Full-text available
Detailed descriptions of five species of the lichen genus Canoparmelia Elix & Hale. are presented. Until now, three species of the genus Canoparmelia, including C. apata (Krempelh.) Elix & Hale, C. owariensis (Asah.) Elix, and C. texana (Tuck.) Elix & Hale have been reported in South Korea. Canoparmelia carneopruinata (Zahlbr.) Elix & Hale, C. croz...
Article
Full-text available
Heterodermia flabellata (Fée) D. D. Awasthi was found as a new lichen record in Jeju Island of South Korea in 2012. A detailed taxonomic description and comments are provided for the taxa. An updated key for all recorded species of Heterodermia from South Korea is given.
Article
Full-text available
Two new species of Anzia are described from Sri Lanka: A. mahaeliyensis characterized by a white, single-layered medulla and pale tipped isidia, and A. flavotenuis by a two-layered medulla with the upper layer yellow and the lower part white, a central chondroid axis and isidia with brown-black tips. Morphological and chemical characters used to di...
Article
Full-text available
Chemistry of Heterodermia microphylla, a lichen new to Sri Lanka J.Natn.Sci.Foundation Sri Lanka 2008 36 (3):251-252. Karunananda Bombuwela1, Selvaluxmy Kathirgamanathar1, Vinitha Thadhani1, R.G.U. Jayalal1, N.K.B. Adikaram2, D.S.A. Wijesundara3, Raymond Andersen4, Pat Wolseley5 and Veranja Karunaratne1* 1 Department of Chemistry, Faculty of Scien...
Article
Full-text available
Green mould disease in Oyster mushroom (Pleurotus ostreatus) caused by Trichoderma harzianum results in considerable inhibition of growth of mycelium and fruit bodies of Oyster mushroom lowering the yield substantially. The study examined how mushroom growth is inhibited while T. harzianum growth is accelerated. Diseased mushroom bags were collecte...

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Projects

Projects (3)
Project
To find the antibiotic effect for medicinal purposes To find the MIC values of Heterodermia leucomelos and Usnea species To identify their chemical properties
Project
Providing the taxonomic outline of the kingdom Fungi. The Outline will be based on recent publications of Outline of Ascomycota (Wijayawardene et al. 2018; FUDI 88: 167-263), Notes for genera of Basal Clades of Fungi (Wijayawardene et al. 2018; submitted to FUDI) and Notes for genera of Basidiomycota (He et al. (2018; in prep.).
Project
Provides taxonomic notes for all genera of Ascomycota