論文 - 詳細
| RRC ID | 4384 |
|---|---|
| 著者 | Poch HL, López RH, Clark SJ. |
| タイトル | Ecotypes of the model legume Lotus japonicus vary in their interaction phenotypes with the root-knot nematode Meloidogyne incognita. |
| ジャーナル | Ann Bot |
| Abstract |
BACKGROUND AND AIMS:Knowledge of host factors affecting plant-nematode interactions is scarce. Here, relevant interaction phenotypes between a nodulating model host, Lotus japonicus, and the endoparasitic root-knot nematode Meloidogyne incognita are assessed via a genetic screen. METHODS:Within an alpha experimental design, 4-week-old replicate plants from 60 L. japonicus ecotypes were inoculated with 1000 nematodes from a single egg mass population, and evaluated for galling and nematode egg masses 6 weeks after inoculation. KEY RESULTS:Statistical analysis of data for 57 ecotypes showed that ecotype susceptibilities ranged from 3.5 to 406 galls per root, and correlated strongly (r = 0.8, P < 0.001, log scale) with nematode reproduction (ranging from 0.6 to 34.5 egg masses per root). Some ecotypes, however, showed a significant discrepancy between disease severity and nematode reproduction. Necrosis and developmental malformations were observed in other infected ecotypes. CONCLUSIONS:The first evidence is provided of significant variability in the interactions between L. japonicus and root-knot nematodes that may have further implications for the genetic dissection and characterization of host pathways involved in nematode parasitism and, possibly, in microbial symbiosis. |
| 巻・号 | 99(6) |
| ページ | 1223-9 |
| 公開日 | 2007-6-1 |
| DOI | 10.1093/aob/mcm058 |
| PII | mcm058 |
| PMID | 17475628 |
| PMC | PMC3243576 |
| MeSH | Animals Host-Parasite Interactions / physiology Lotus / classification Lotus / growth & development* Lotus / parasitology Nematoda / growth & development* Plant Diseases / parasitology Plant Roots / growth & development* Plant Roots / parasitology Species Specificity |
| IF | 4.005 |
| 引用数 | 8 |
| WOS 分野 | PLANT SCIENCES |
| リソース情報 | |
| ミヤコグサ・ダイズ | Miyakojima MG-20 |