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Das, Sudipta Kumar
- Colonization of Algae and Cyanobacteria on Calcareous Remains of Dead Animals in Larsemann Hills, East Antarctica
Abstract Views :263 |
PDF Views:92
Authors
Affiliations
1 Cryptogamic Unit, Central National Herbarium, Botanical Survey of India, Howrah 711 103, IN
1 Cryptogamic Unit, Central National Herbarium, Botanical Survey of India, Howrah 711 103, IN
Source
Current Science, Vol 112, No 05 (2017), Pagination: 913-915Abstract
The Larsemann Hills (60°20'-60°30'S, 75°55'-76°30'E), is an ice-free coastal oasis of 50 km2, located approximately halfway between the Vestfold Hills and the Amery Ice Shelf on the southeastern coast of Prydz Bay, Princess Elizabeth land, East Antarctica, bordered by two main peninsulas, Broknes and Stornes and several islands. It is the second largest of only four major ice-free oases. A congenial microclimate along with adequate freshwater during summer provide a hospitable environment for the aquatic as well as terrestrial biota.Full Text
- Microbial Deterioration of Heritage Monuments in Santiniketan, West Bengal, India
Abstract Views :274 |
PDF Views:85
Authors
Affiliations
1 Department of Biotechnology, Institute of Science, Visva-Bharati, Santiniketan 731 235, IN
2 Central National Herbarium, Botanical Survey of India, Howrah 711 103, IN
1 Department of Biotechnology, Institute of Science, Visva-Bharati, Santiniketan 731 235, IN
2 Central National Herbarium, Botanical Survey of India, Howrah 711 103, IN
Source
Current Science, Vol 116, No 5 (2019), Pagination: 709-711Abstract
Microbial deterioration of monuments and facades of heritage buildings is a well-known and a widely recognized problem in India and the world over. Several stone monuments of archaeological importance, belonging to period from the 1st to 12th century AD in many regions of India have become obliterated, defaced and disfigured due to the colonization of blackish/brownish growth of biofilms on their exposed surfaces, causing aesthetic/structural disfigurement and damage1,2. The main species of these biofilms thriving on Indian monuments are cyanobacteria, which are stress-tolerant and can survive in the adverse condition of desiccation and extreme temperature of stones3–5. During the onset of monsoon, these blackish/brownish biofilms become greenish after absorbing moisture and utilize the minerals present in the stone substrata to grow. This is the main cause of deterioration of these important monuments6–8. Certain species of cyanobacteria which dominate these biofilms, develop survival strategies by secreting a thick sheath of extracellular polymeric substances (EPS) resulting into crust formation under adverse conditions and desiccation9,10. These cyanobacteria are also rich in UV-sunscreen pigments like scytonemin and mycosporine- like amino acids (MAAs)11 which act as a protective mechanism against desiccation and intense solar radiation12,13.Full Text
References
- Adhikary, S. P., Indian J. Microbiol., 2000, 40, 67–81.
- Keshari, N. and Adhikary, S. P., Biofouling, 2013, 29(5), 525–536.
- Roy, A., Tripathy, P. and Adhikary, S. P., Algol. Stud., 1997, 86, 147–161.
- Samad, L. K. and Adhikary, S. P., Algae, 2008, 23(2), 91–114.
- Tripathy, P., Roy, A., Anand, N. and Adhikary, S. P., Feddes Repert., 1999, 110(1–2), 133–144.
- Scheerer, S., Ortega-Morales, O. and Gaylarde, C., Adv. Appl. Microbiol., 2009, 66, 97–139.
- Dakal, T. C. and Cameotra, S. S., Environ. Sci. Eur., 2012, 24(1), 1.
- McNamara, C. J. and Mitchell, R., Front. Ecol. Environ., 2005, 3(8), 445–451.
- Pócs, T., Acta Bot. Hung., 2009, 51(1–2), 147–178.
- Rossi, F., Micheletti, E., Bruno, L., Adhikary, S. P., Albertano, P. and DePhilippis, R., Biofouling, 2012, 28(2), 215– 224.
- Adhikary, S. P. and Sahu, J. K., J. Plant Physiol., 1998, 153, 770–773.
- Oren, A. and Gunde-Cimerman, N., FEMS Microbiol. Lett., 2007, 269(1), 1– 10.
- Sinha, R. P. and Häder, D. P., Plant Sci., 2008, 174(3), 278–289.
- Keshari, N. and Adhikary, S. P., Int. Biodeterior. Biodegrad., 2014, 90, 45– 51.
- Keshari, N. and Adhikary, S. P., In Cyanobacteria: An Economic Perspective (eds Sharma, N. K., Rai, A. K. and Stal, L. J.), Wiley Blackwell, UK, 2013, pp. 73–90.
- Keshari, N., Das, S. K. and Adhikary, S. P., Eur. J. Phycol., 2015, 50(4), 395– 399.
- Keshari, N., Das, S. K. and Adhikary, S. P., Phytotaxa, 2016, 283(2), 181– 187.
- Adhikary, S. P., Keshari, N., Urzi, C. and DePhilppis, R., Algol. Stud., 2015, 147, 67–93.
- Rippka, R., Deruelles, J., Waterbury, J. B., Herdman, M. and Stanier, R. Y., Microbiology, 1979, 111(1), 1–61.
- Nübel, U., Garcia-Pichel, F. and Muyzer, G., Appl. Environ. Microbiol., 1997, 63(8), 3327–3332.
- Tamura, K., Stecher, G., Peterson, D., Filipski, A. and Kumar, S., Mol. Biol. Evol., 2013, 30(12), 2725–2729.