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VOL. 6, ISSUE 4 (2021)
Distribution and molecular characterization of Helicotylenchus multicinctus (Tylenchida: Hoplolaimidae) from banana roots in Namakkal region, Tamil Nadu
Authors
Gunasekaran Tharani, Alagersamy Alagesan, Sundaram Jawahar, Shanmugasundaram Saranya, Arumugam Balakrishnan, Balakrishnan Padmanaban, Subramanian Manivannan
Abstract
Banana (Musa acuminata) is grown in tropical regions, cultivated in the delta regions of Tamil Nadu, India. Plant-parasitic nematodes (PPNs) are recognized as one of the major threats to a wide variety of host which affects the banana root system, leading to impaired plant growth and production. In this study, the population density of three different nematode species namely, H. multicinctus, M. incognita and P. coffeae were identified in Namakkal district of Tamil Nadu. Of these, the spiral nematode, H. multicinctus was found maximum of 72.7% at Kanavaipatty followed by Siluvampatty (63.6%) and Kondarasampalayam (62.5%) villages when compared to other species thus significantly influenced its production. The genus Helicotylenchus contains cosmopolitan, ubiquitous plant-parasitic nematodes with some species capable of causing significant economic damage to the agricultural crops. Consequently, the species identification is essential for the development of effective management strategies to enhance the banana production. Helicotylenchus spp. was found higher in the root samples obtained from this region and morphological data indicates the presence of H. multicinctus. Molecular characterization was carried out to identify the nematode species and phylogenetic analysis of the 18S rDNA segment revealed the identified species is H. multicinctus and it was morphologically similar but genetically some alterations in the nucleotides.
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Pages:965-971
How to cite this article:
Gunasekaran Tharani, Alagersamy Alagesan, Sundaram Jawahar, Shanmugasundaram Saranya, Arumugam Balakrishnan, Balakrishnan Padmanaban, Subramanian Manivannan "Distribution and molecular characterization of <em>Helicotylenchus multicinctus</em> (Tylenchida: Hoplolaimidae) from banana roots in Namakkal region, Tamil Nadu ". International Journal of Botany Studies, Vol 6, Issue 4, 2021, Pages 965-971
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