Page 14 of 3770 Results 131 - 140 of 37696
Id/Author/Year/TitleOrder by:  Year  Id  Author  Title
37566
Sransupphasirigul N., Saipunkaew W., Mungkornasawakul P., Srithai B. & Kheawsalab C. (2021): Anthropogenic effects on the distribution of four epiphytic lichens in Chiang Mai-Lamphun Basin, Thailand, Chiang Mai Journal of Science, 48(2): 382-394

Lichens are widely known as indicators because of their sensitivity to changes in environmental qualities. This study investigated the effects of human activities on lichens in the Chiang Mai-Lamphun basin, Thailand. Lichen frequencies were surveyed in 47 study sites using a 20 x 50 cm2 grid frame divided into 10 small square units. The surveying frame was put on the tree trunk at 100 cm above ground level to count the frequency of each lichen species. Four epiphytic lichen species were selected, … URL EN Read more... 

37565
Yadav H., Nayaka S. & Dwivedi M. (2021): Analytics on antimicrobial activity of lichen extract, Journal of Pure and Applied Microbiology, 15(2): 701-708

Lichen has a great medicinal value and represents the symbiotic relationship between fungi and algae or cyanobacteria. The genus Usnea longissima(Parmeliaceae), is a fruticose lichen with numerous biological activities like antimicrobial, antifungal and inhibitory activities for plant and human pathogens. Taxonomically it is well distinguished by pale greenish to yellowish-green colour and pendulous thallus with dense branches usually emerging from the main stem. Its fungal partner releases an extracellular … URL EN Read more... 

37564
Fantozzi L., Guerrieri N., Manca G., Orrù A. & Marziali L. (2021): An integrated investigation of atmospheric gaseous elemental mercury transport and dispersion around a chlor-alkali plant in the Ossola Valley (Italian central alps), Toxics, 9(7): 173

We present the first assessment of atmospheric pollution by mercury (Hg) in an industrialized area located in the Ossola Valley (Italian Central Alps), in close proximity to the Toce River. The study area suffers from a level of Hg contamination due to a Hg cell chlor-alkali plant operating from 1915 to the end of 2017. We measured gaseous elemental Hg (GEM) levels by means of a portable Hg analyzer during car surveys between autumn 2018 and summer 2020. Moreover, we assessed the long-term dispersion … URL EN Read more... 

37563
Qian Y., Xu Z., Hong X., Luo Z., Gao X., Tie C. & Liang H. (2022): Alkylated Polycyclic Aromatic Hydrocarbons Are the Largest Contributor to Polycyclic Aromatic Compound Concentrations in the Topsoil of Huaibei Coalfield, China, Int. J. Environ. Res. Public Health, 19: 12733

Alkyl polycyclic aromatic hydrocarbons (APAHs) are more toxic and persistent than their parent compounds. Here, the concentrations, composition profiles, and spatial distribution of polycyclic aromatic compounds (PACs) in 127 topsoil samples from Huaibei coalfield were analyzed. The PAC concentrations in different functional areas were significantly different: mining area > industrial area > residential area > agricultural area. APAHs were the major contributors to PACs, accounting for 71–83% of … URL EN Read more... 

37562
Rosentreter R. & Brinda J. (2021): Alkali scrub habitat in California includes a large biodiversity of biocrusts, Bulletin of the California Lichen Society, 28(1): 1-7

The rare patches of alkali desert scrub habitat in southern California superficially look harsh and barren. In dry years they really seem empty, with only a few dead looking shrubs. However, when one looks closer it is clear that these habitats are full of life. While there are only two dominant shrub species (Atriplex), there are 24 species in the native biocrust community. These species are small in stature and difficult to see, but they still cover the soil surface. These biocrust communities … URL EN Read more... 

37561
Sohrabi M., Hassanzadeh N., Hedayatzadeh F. & Mofid M. (2021): Air quality and trace elements biomonitoring in Tehran urban areas using epiphytic lichen, Iranian Journal of Health and Environment Iranian Journal of Health and Environment, 13(4): 705-734

The study investigates air quality and the distribution of trace elements in urban areas of Tehran using the epiphytic lichen Ramalina sinensis as a bioindicator. Lichen thalli were collected from unpolluted areas and transplanted to six urban sites for six months. Post-exposure, the concentration of 12 elements was analyzed using ICP-MS, and the data were evaluated using various statistical and environmental pollution indices. Results showed a significant bioaccumulation of essential elements, with … URL EN Read more... 

37560
Dubey N. & Bagla H. (2021): Air Quality Analytics and Monitoring: A study employing transplanted Porina lichen in Mumbai City, Research Journal of Chemistry and Environment, 25(2): 45-53

Present work aims to investigate bioaccumulation of heavy metals of anthropogenic origin employing lichens as active bioindicators in different locations of Mumbai. Lichens actasreliable bioindicators of terrestrial air quality due to lack of significant cuticle or epidermis combined with their extraordinary capability to grow in a large geographical area. Porina Internigrans (Nyl.) Mull. Arg. was collected from different locations of Bhimashankar for 3 consecutive years, identified at National Botanical … URL EN Read more... 

37559
Kumar V., Sharma Y.P., Joseph S., Ngangom R. & Nayaka S. (2021): Additions to the lichenized and lichenicolous fungi of Jammu & Kashmir from Kishtwar High Altitude National Park, Journal of Threatened Taxa, 13(12): 19799-19807

The present study reports 14 lichenized and two lichenicolous fungi new to the mycota of Jammu & Kashmir. The lichenized fungi are Buellia aeruginascens (Nyl.) Zahlbr., Caloplaca pachycheila Poelt & Hinter., Cladonia cervicornis ssp. verticillata (Hoffm.) Ahti, Hafellia curatellae (Malme) Marbach, Hafellia subnexa Marbach, Hafellia tetrapla (Nyl.) Pusswald, Leptogium askotense D.D.Awasthi, Nephromopsis laii (A. Thell & Randlane) Saag & A.Thell, Polycauliona phlogina (Ach.) Arup, Frödén & Søchting, … URL EN Read more... 

37558
Sazanova K.V., Zelenskaya M.S., Manurtdinova V.V., Izatulina A.R., Rusakov A.V., Vlasov D.Y. & Frank-Kamenetskaya O.V. (2021): Accumulation of elements in biodeposits on the stone surface in urban environment. Case studies from Saint Petersburg, Russia, Microorganisms, 9(1): 36

The pattern of elements accumulation in biodeposits formed by living organisms and extracellular products of their metabolism (biofouling, primary soils) on different bedrocks (of the monuments of Historical necropoleis in Saint Petersburg) were studied by a complex of biological and mineralogical methods (optical microscopy, SEM, EDX, XRD, ICP MS, XRFS). The content of 46 elements in biodeposits with various communities of microorganisms is determined. The model recreating the picture of the input … URL EN Read more... 

37557
Pradhan S.P., Bista H., Lamsal B., Dotel N., Pandey B.P. & Sharma S. (2025): Nitrogen and metal ions accumulation in two sensitive Himalayan lichens from western Nepal: A reference for ecosystem health monitoring, Journal of Chemistry , 2025: 6482278 [13 p.]

In this study, thalli nitrogen (N) and metal ions contents in the two fruticose lichens (Ramalina intermedia and Usnea cornuta) were quantified, which were collected from a pristine Himalayan forest of Shey Phoksundo National Park of western Nepal. Besides, the probable impacts of N and metal ions in physicochemical responses such as electrical conductivity, chlorophyll contents, and chlorophyll degradation were studied. Our initial hypothesis was there are considerable amounts of thallus N and metal … URL EN Read more... 

Page 14 of 3770 Results 131 - 140 of 37696