The hatching-stimulation activity of solanoeclepin A toward the eggs of Globodera (Tylenchida: Heteroderidae) species
- PDF / 707,415 Bytes
- 7 Pages / 595.276 x 790.866 pts Page_size
- 31 Downloads / 155 Views
ORIGINAL RESEARCH PAPER
The hatching‑stimulation activity of solanoeclepin A toward the eggs of Globodera (Tylenchida: Heteroderidae) species Itaru Sakata1 · Atsuhiko Kushida1 · Keiji Tanino2 Received: 4 September 2020 / Accepted: 15 October 2020 © The Japanese Society of Applied Entomology and Zoology 2020
Abstract Plant-parasitic nematodes often interact with their host plants via chemical compounds for successful invasion. In cyst nematodes, hatching requires chemicals known as hatching factors that are released from host roots. Previous studies succeeded in identifying and synthesizing solanoeclepin A (SEA) as a host-derived hatching factor for Globodera rostochiensis (Wollenweber) Behrens and Globodera pallida (Stone) Behrens (Tylenchida: Heteroderidae). However, no published data were available about the hatching response of Globodera species, other than G. rostochiensis, toward SEA. In this study, we tested the hatching responses of G. rostochiensis, G. pallida, Globodera ellingtonae Handoo, Carta, Skantar, and Chitwood, Globodera tabacum (Lownsbery and Lownsbery) Behrens, and Globodera artemisiae (Eroshenko and Kasachenko) Behrens (Tylenchida: Heteroderidae) toward SEA by exposing eggs of each species to 0.001, 0.01, 0.1, 1, 10, and 100 ppb of SEA and observing their hatching response. SEA stimulated the hatching of Solanaceae-parasitic Globodera species (G. rostochiensis, G. pallida, G. ellingtonae, and G. tabacum). The optimal concentration of SEA for hatching was 0.01–10 ppb. However, the hatching activity of G. pallida and G. ellingtonae was lower than that of G. rostochiensis and G. tabacum. SEA showed no effects on G. artemisiae which is parasitic to Artemisiae plants. Keywords Globodera tabacum · Hatching factor · Potato cyst nematodes · Solanaceae
Introduction Globodera rostochiensis (Wollenweber) Behrens and Globodera pallida (Stone) Behrens (Tylenchida: Heteroderidae) are significant pests of potato. These species cause poor plant growth, and reduced tuber number and size (Trudgill et al. 1975a, 1975b). Although loss of potato yields due to these species are influenced by multiple factor (soil type, cultivar, weather, site, etc.), more than 50% loss in total potato yield have been reported (Trudgill 1986; Trudgill et al. 2014). They can also attack other Solanaceae crops and have been problematic for tomato production in Europe (Ellis 1968; Ellis and Smith 1971; Graham 1966; Hesling and Ellis 1972; * Itaru Sakata [email protected] 1
Hokkaido Agricultural Research Center, National Agriculture and Food Research Organization, 1, Hitsujigaoka, Toyohira‑ku, Sapporo, Hokkaido 062‑8555, Japan
Faculty of Science, Hokkaido University, Kita 10‑jo Nishi 8‑chome, Kita‑ku, Sapporo, Hokkaido 060‑0810, Japan
2
Trifonova et al. 1995). Recently, another Globodera species parasitic to potato, Globodera ellingtonae Handoo, Carta, Skantar, and Chitwood (Tylenchida: Heteroderidae), was discovered in potato production fields in USA (Handoo et al. 2012; Skantar et al. 2011) and is also parasitic to to
Data Loading...
