Molur Sanjay, Krutha Keerthi, Paingankar Mandar S, Dahanukar Neelesh
Systematics, Ecology and Conservation Laboratory, Zoo Outreach Organization, Coimbatore, India.
Dis Aquat Organ. 2015 Jan 15;112(3):251-5. doi: 10.3354/dao02804.
We investigated the distribution of Batrachochytrium dendrobatidis (Bd) fungal infections in amphibians of the Western Ghats mountain range in India, based on data from 497 samples. Eight individuals were positive, with genomic equivalents ranging from 2 to 785 zoospores. A single widespread Bd strain identical to the haplotype endemic to Asia was isolated. Our findings suggest that chytridiomycosis is widespread among the endemic and threatened amphibians of the entire stretch of the Western Ghats. An ecological niche-based prediction model based on all Bd-positive reports from the Western Ghats to date suggested a higher probability of infection in the central Western Ghats of Karnataka and northern Kerala states, which host a rich diversity of endemic and threatened amphibians.
基于497个样本的数据,我们调查了印度西高止山脉两栖动物中蛙壶菌(Batrachochytrium dendrobatidis,简称Bd)真菌感染的分布情况。8个个体呈阳性,基因组当量范围为2至785个游动孢子。分离出了一种与亚洲特有单倍型相同的广泛传播的Bd菌株。我们的研究结果表明,壶菌病在西高止山脉整个区域的特有和濒危两栖动物中广泛存在。基于西高止山脉迄今所有Bd阳性报告构建的基于生态位的预测模型表明,在卡纳塔克邦中西部和喀拉拉邦北部的西高止山脉地区感染概率较高,这些地区拥有丰富多样的特有和濒危两栖动物。