| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Research Abstract |
Termites express polyphenism, in that nymphs can differentiate into either the alate or the nymphoid form, which is one of the reproductive caste phenotypes (neotenics). The siRNA injection treatment used to silence hexamerin caused moderate suppression of hexamerin gene expression in the termite, Reticulitermes speratus. Promotion of nymph differentiation to nymphoid form occurred with the siRNA injection treatment. The number of oviposition and neotenics that developed from workers and nymphs fed the waste of Hypsizigus marmoreus was significantly higher than the control. An ester of arabinoxylobiose and 2-hydroxysinapic acid may be the key elements in mushroom waste that affect termite development and oviposition.
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