Nitrate analogs as attractants for soybean cyst nematode

Bioscience, Biotechnology and Biochemistry - Tập 81 Số 8 - Trang 1542-1547 - 2017
Akito Hosoi1, Tsutomu Katsuyama1, Yasuyuki Sasaki1, Tatsuhiko Kondo2, Shunsuke Yajima1, Shinsaku Ito1
1Department of Bioscience, Tokyo University of Agriculture, Tokyo, Japan
2Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan

Tóm tắt

Abstract Soybean cyst nematode (SCN) Heterodera glycines Ichinohe, a plant parasite, is one of the most serious pests of soybean. In this paper, we report that SCN is attracted to nitrate and its analogs. We performed attraction assays to screen for novel attractants for SCN and found that nitrates were attractants for SCN and SCN recognized nitrate gradients. However, attraction of SCN to nitrates was not observed on agar containing nitrate. To further elucidate the attraction mechanism in SCN, we performed attraction assays using nitrate analogs (, , ). SCN was attracted to all nitrate analogs; however, attraction of SCN to nitrate analogs was not observed on agar containing nitrate. In contrast, SCN was attracted to azuki root, irrespective of presence or absence of nitrate in agar media. Our results suggest that the attraction mechanisms differ between plant-derived attractant and nitrate.

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Bioscience, Biotechnology and Biochemistry

Tập 81 Số 8

1542-1547

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