Ectomycorrhizal Diversity in Zabarvan Forest Range of North Western Himalaya

Ectomycorrhizal Diversity in Zabarvan Forest Range of North Western Himalaya

Int.J.Curr.Microbiol.App.Sci (2019) 8(5): 2312-2323 International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 8 Number 05 (2019) Journal homepage: http://www.ijcmas.com Original Research Article https://doi.org/10.20546/ijcmas.2019.805.273 Ectomycorrhizal Diversity in Zabarvan Forest Range of North Western Himalaya P.A. Sheikh1*, Baby Summuna1, G.H. Dar1, Sajad-Un-Nabi2 and Khurshid Ahmad Mir3 1Division of Plant Pathology, S.K. University of Agricultural Sciences & Technology of Kashmir, Shalimar, Srinagar-190 025 Jammu and Kashmir, India 2Central Institute of Temperate Horticulture, Indian council of Agriculture Research Srinagar-190007 Jammu and Kashmir, India 3Division of Vegetable science, S.K. University of Agricultural Sciences & Technology of Kashmir, Shalimar, Srinagar-190 025 Jammu and Kashmir, India *Corresponding author ABSTRACT K e yw or ds The aim of the present investigation was to prepare an inventory of Biodiversity index, ectomycorrhiza prevailing in Zabarvan forest range of Western Himalayas of Ectomycorrhiza, Kashmir and assess their diversity index and species richness. Three forest sites Kashmir viz., Dachigam, Shalimar and Shankaracharia hills were surveyed periodically for Himalayas, Species Richness, Zabarvan three consecutive years (2011-2013) for ectomycorrhiza. A total number of 67 forest species in 23 genera belonging to 21 families in 07 orders were recorded. The study revealed that mycorrhizal fungal species richness was more in autumn Article Info season (45 species) and less in summer (11 species). The Simpson diversity index Accepted: of Dachigam, Shalimar and Shankaracharia hills was found to be 0.981, 0.910, 18 April 2019 0.939 respectively, while Shannon’s diversity index of these sites was 4.03, 2.36, Available Online: 10 May 2019 2.903, respectively. Introduction Himalaya and Himalaya zones (Rodgers et al., 2002). Mapping biological diversity of a Biological diversity is a central determinant region is a major goal to the global of ecosystem function and also a key conservation community (Gaston, 2000). contributor to the portfolio of services Forest and tree cover of India constitutes provided by ecosystems to humans (Carlson nearly 789,164 km2, which constitute 24% of et al., 2007). India, one among 12 mega geographical area of the country (FSI, 2013). diversity countries across the globe, possesses The country’s rich vegetation and diversity is more than 8% of the world's total biodiversity undoubtedly due to the immense variety of and its bio-geographic ecosystems is climatic and altitudinal variations (Reddy et classified into ten zones which include Trans- al., 2013). The state of Jammu and Kashmir 2312 Int.J.Curr.Microbiol.App.Sci (2019) 8(5): 2312-2323 lies in the North Western Himalayan al., 2002). Ectomycorhiza play important role mountainous range between 32°17’ and in rendering the unavailable organic forms of 37°05’ North latitude and 72°31’ and 80°20’ soil nutrients available to the plants through East longitude with geographic area of various mechanisms including the production 101,387 km2 of which 19.95% area is covered of extracellular enzymes (Read and Perez- by forests alone (ES, 2013-14). Of the total Moreno, 2003; Aucina et al., 2007). forest area in J&K state, 40.2% area lies in Enormous interest has recently generated in Kashmir valley alone which harbours rich the use of ectomycorrhiza as inocula for floristic diversity. successful forest nursery raising especially in degraded and degenerated forests. The present As per the conservative estimates, about 1.5 study was therefore, aimed to assess the million fungal species are present worldwide mycorrhizal diversity of Zabarvan forest (Hawksworth, 2004) with one-third existing range in Kashmir Himalayas, prepare in India alone. Hardly 50% of these fungi inventory and assess their diversity index and have been identified and characterized so far species richness. (Manoharachary et al., 2005). Ectomycorrhizal plants, while taxonomically Materials and Methods more rare, are common within boreal and temperate forests (e.g. Pinaceae, Fagaceae, Collection site Betulaceae, Nothofagaceae and others) (Tedersoo and Smith, 2013). The Zabarvan forest range (Fig. 1) lies in the north of Srinagar city of Jammu & Kashmir The floristic composition of North West State which lies in the heart of North Western Himalayan mountains, have not extensively Himalaya. It lies at 34°02 and 34°08N latitude been surveyed and explored for the and 74°44 and 74°55 E longitude and covers macrofungi emanating in different seasons, an area of 265 km2. The sites selected for except for some widely used edible macrofungal survey were Dachigam, mushrooms (Kaul et al., 1978; Walting and Shalimar and Shankaracharia hills which Abraham, 1992; Samant and Dhar, 1997). cover an area of 141, 69 and 55 km2, Hardly 250 macrofungi species have so far respectively, with altitude ranging from 1676- been reported from the J&K (Walting and 4267, 1624-3385 and 1585-3352 m masl, Abraham, 1992; Beig et al., 2008; Dar et al., respectively. These forests are mostly 2009; Sheikh et al., 2014), mostly from dominated by conifers viz., cedar, pine, Gulmarg and Pahalgam forests. The Zabarvan spruce, fir, etc. growing upto 3657 m masl forest range which harbours mixed- and pure- and above this altitude lie meadows which conifer stands and stretches from bloom with rhododendrons, honey suckle and Shankaracharia hills to Dachigham hills has dwarf willows. not been extensively surveyed for mycotic flora so far. The baseline information on The vegetative cover existing in these forests diversity in different vegetation types is provide best suited habitat for fungal flora. essential for planning and managing The area has temperate climate with average ecosystem biodiversity (Engola et al., 2007). temperature of 13.5°C, the highest monthly The knowledge about biodiversity at average temperature of 17.3°C, 29.3°C and community and species levels is important for 25.5°C in March-April, June-July and monitoring the effectiveness and impact of September-October, respectively. The average natural and artificial disturbances (Packham et rainfall is 710mm. 2313 Int.J.Curr.Microbiol.App.Sci (2019) 8(5): 2312-2323 Sporocarp survey and identification The survey for the collection of ectomycorrhizal was carried out at monthly D = Simpson’s index, N = the total number of interval from March onwards during the years organisms of all species; n = the total number 2011 and 2013 in each potential growing of organisms of a particular species season viz., spring, summer and fall (autumn). The efforts were made to establish the Shannon’s diversity index was estimated as relation/association of sporocarps with plant per Margalef (2008). root by careful digging of soil and tracing their connection with the host plant roots as per the method of Young (1940) and Zak (1969). The epigeous ectomycorrhiza of each fungal species were collected and wrapped in Where, H = the diversity index, N = the total thin aluminum foil paper placed in polybags number of individuals of all species; n = the separately, brought to the laboratory and total number of individuals of the individual analyzed for their identity. Photographs were species taken using digital Sony camera DSC-RX100. The spore prints were taken on paper or glass With the help of the values of diversity index, slides to study the colour of spores, shape of the evenness of ectomycorrhiza was gills and pores, and attachment of gills to the calculated as per Pielou (1996) stipe (Kuo, 2001; Kuo, 2004). The colour terminology followed was that of Kornerup and Wanscher (1978). Melzer’s reagent was used to investigate amyloidity of pores and E = evenness, H = Shannon diversity index; S various other tissues. Cresyl blue solution was = the number of the species used to study the meta-chromatic reactions of spores. Specimens were identified on Similarity of index was estimated as per comparison with relevant literature (Kirk et Sorenson’s formula to assess the similarity in al., 2001; de Roman et al., 2005; Agerer, species occurrence (Odum, 1971). The 2006) and the information available at various similarity ranges from 0 to 1 (1 indicates very web resources viz., Determination of similar, 0 indicates no similarity) Ectomycorrhiza (DEEMY), http://www. deemy.de; www.Mushroom Expert.com; mycokey, www.mycokey.com; Mycorrhiza literature exchange, http://mycorrhiza.ag.utk. edu, etc.. The sporocarps were preserved in Wherein S is the degree of similarity, A and B the herbarium of Mycology and Forestry are the number of the species at two different Section, Division of Plant Pathology, sites and C is number of species common to SKUAST-Kashmir, Shalimar, Srinagar both collections. (J&K). Results and Discussion Data analysis During three year survey of Zabarvan forest Simpson’s diversity index was assessed as per hills in Kashmir, sixty seven ectomycorrhizal Simpson (1949) species were collected from different locations and seasons (Table 1). These 2314 Int.J.Curr.Microbiol.App.Sci (2019) 8(5): 2312-2323 macrofungi were collected at an altitudinal the elevational gradients. These findings are range of 1825 to 2896 m masl. The hill range in conformity with Wood-Eggenschwiler and has predominantly coniferous forest stands Barlocher (1985) and Ohenoja (1993) (Table either pure or mixed with broad-leaved plant 2). species which support rich macrofungal flora. Conifer habitat provides congenial conditions A total number of 67 species in 23

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