Filamentous cyanobacteria from western ghats of North Kerala, India

IF 0.6 4区生物学 Q4 PLANT SCIENCES

Bangladesh Journal of Plant Taxonomy Pub Date : 2021-06-22 DOI:10.3329/bjpt.v28i1.54210

V. Geethu, M. Shamina

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引用次数: 1

Abstract

Cyanobacteria are Gram negative, photosynthetic and nitrogen fixing microorganisms which contribute much to our present-day life as medicines, foods, biofuels and biofertilizers. Western Ghats are the hotspots of biodiversity with rich combination of microbial flora including cyanobacteria. Though cosmopolitan in distribution, their abundance in tropical forests are not fully exploited. To fill up this knowledge gap, the present research was carried out on the cyanobacterial flora of Peruvannamuzhi forest and Janaki forests of Western Ghats in Kozhikode District, North Kerala State, India. Extensive specimen collections were conducted during South-West monsoon (June to September) and North-East monsoon (October to December) in the year 2019. The highest diversity of cyanobacteria was found on rock surfaces. A total of 18 cyanobacterial taxa were identified. Among them filamentous heterocystous forms showed maximum diversity with 10 species followed by non- heterocystous forms with 8 species. The highest number of cyanobacteria were identified from Peruvannamuzhi forest with 15 taxa followed by Janaki forest with 3 taxa. The non- heterocystous cyanobacterial genus Oscillatoria Voucher ex Gomont showed maximum abundance with 4 species. In this study we reported Planktothrix planktonica (Elenkin) Agagnostidis & Komárek 1988, Oscillatoria euboeica Anagnostidis 2001 and Nostoc interbryum Sant’Anna et al. 2007 as three new records from India. Bangladesh J. Plant Taxon. 28(1): 83-95, 2021 (June)

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来自印度北喀拉拉邦西部高地的丝状蓝藻

蓝藻是革兰氏阴性、光合和固氮微生物，作为药物、食品、生物燃料和生物肥料，对我们当今的生活有很大贡献。西高止山脉是生物多样性的热点地区，微生物区系组合丰富，包括蓝藻。尽管分布在世界各地，但它们在热带森林中的丰富性并没有得到充分利用。为了填补这一知识空白，本研究对印度北喀拉拉邦科日科德区西高止山脉的Peruvannamuzhi森林和Janaki森林的蓝藻区系进行了研究。在2019年西南季风（6月至9月）和东北季风（10月至12月）期间进行了广泛的标本采集。岩石表面蓝藻的多样性最高。共鉴定出18个蓝藻类群。其中丝状异囊形态多样性最大，有10种，其次为非异囊形态，有8种。紫苏树林中蓝藻数量最多，有15个分类群，其次是Janaki树林，有3个分类群。非异囊蓝细菌Oscillania Voucher ex Gomont的丰度最高，有4种。在本研究中，我们报道了Planktothrix planktonica（Elenkin）Agagnostidis和Komárek 1988、Oscillania euboeica Anagnostidis 2001和Nostoc interbryum Sant’Anna等人2007作为来自印度的三个新记录。孟加拉国植物分类学杂志。28（1）：83-952021（6月）

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来源期刊

Bangladesh Journal of Plant Taxonomy 生物-植物科学

CiteScore

0.42

自引率

44.40%

发文量

审稿时长

6 months

期刊介绍： Bangladesh is a humid, subtropical country favouring luxuriant growth of microorganisms, fungi and plants from algae to angiosperms with rich diversity. She has the largest mangrove forest of the world in addition to diverse hilly and wetland habitats. More than a century back, foreign explorers endeavoured several floral expeditions, but little was done for non-vasculars and pteridophytes. In recent times, Bangladesh National Herbarium has been carrying out taxonomic research in Bangladesh along with few other national institutes (e.g. Department of Botany of public universities and Bangladesh Forest Research Institute).