Abstract:
:Potato cyst nematodes (PCNs) are a major pest of solanaceous crops such as potatoes, tomatoes, and eggplants and have been widely studied over the last 30 years, with the majority of earlier studies focusing on the identification of natural hatching factors. As a novel approach, we focused instead on chemicals involved in nematode orientation towards its host plant. A new dual choice sand bioassay was designed to study nematode responses to potato root exudates (PRE). This bioassay, conducted together with a traditional hatching bioassay, showed that biologically active compounds that induce both hatching and attraction of PCNs can be collected by water extraction of incised potato roots. Furthermore, our results demonstrated that PCN also were attracted by potato root volatiles. Further work is needed to fully understand how PCNs use host plant chemical cues to orientate towards hosts. Nevertheless, the simple attraction assay used in this study provides an important tool for the identification of host-emitted attractants.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Farnier K,Bengtsson M,Becher PG,Witzell J,Witzgall P,Manduríc Sdoi
10.1007/s10886-012-0105-ysubject
Has Abstractpub_date
2012-06-01 00:00:00pages
795-801issue
6eissn
0098-0331issn
1573-1561journal_volume
38pub_type
杂志文章abstract::Sasa (Sasa cernua Makino) is a very serious weed pest. Its allelopathy was studied using lettuce, wheat, timothy, and green amaranth as testing species. Cultured in the rhizosphere soil ofSasa cernua, the seedlings were inhibited by 42-80% compared with the controls cultured in normal soil and vermiculite. The phenoli...
journal_title:Journal of chemical ecology
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journal_title:Journal of chemical ecology
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01013240
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
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更新日期:2012-09-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
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