Influence of Temperature on Microsporidian Multiplication and Spore Production in Various Tissues of Silkworm (Bombyx mori L.) During Larval Development
2006
Mohanan, N. Madana (Central Sericultural Research and Training Institute, Murshidabad, West Bengal, India), E-mail: [email protected] | Krishnan, N. (Czech Academy of Sciences, Ceske Budijovice, Czech Republic) | Mitra, P. (Central Sericultural Research and Training Institute, Murshidabad, West Bengal, India) | Das, K.K. (DBKV, Dakshin Dinajpur, West Bengal, India) | Saratchandra, B. (Central Silk Board, BTM Layout, Madivala, Bangalore, India) | Haldar, D.P. (University of Kalyani, Kalyani, India)
Multiplication and spore production of three microsporidia viz., Nosema bombycis, Nosema sp. 1 and Nosema sp. 2 in fifth instar larval tissues of silkworm, Bombyx mori L. in two seasons with distinct temperature regimes were studied. Nosema sp. 2 produced significantly (P less than 0.01) higher number of spores in various tissues. Among the tissues, spore production was highest in silk gland, followed by fat body and gut. Spore production was significantly (P less than 0.01) higher in season-Ⅱ (Average temperature 29.4±1.1℃).
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