Ghent University, Department of Molecular Biotechnology, Coupure links 653, 9000 Ghent, Belgium.
Curr Opin Plant Biol. 2011 Aug;14(4):415-21. doi: 10.1016/j.pbi.2011.03.012. Epub 2011 Mar 30.
Sedentary plant-parasitic nematodes establish long term relationships with their hosts. Root vascular cells are transformed into large multinucleate feeding cells from which the nematodes feed for more than one month. Recent transcriptome analyses suggest that feeding cells are different from other plant cell types. Their development, however, remains poorly understood, despite new evidence that appears to confirm previously proposed models, such as the important role of auxin. From the analysis of nematode effector proteins that interact with plant proteins, it has become clear that nematodes manipulate many aspects of plant development, including auxin transport and plant cell differentiation pathways. These studies are also revealing roles for effectors in the inhibition of plant stress and defense responses to establish feeding cells. In the coming years breakthroughs can be expected in our understanding of plant-nematode interactions from the functional analysis of nematode effector genes as well as the involved plant genes.
固着性植物寄生线虫与宿主建立长期关系。根维管束细胞转化为大型多核取食细胞，线虫在此取食超过一个月。最近的转录组分析表明，取食细胞不同于其他植物细胞类型。然而，尽管有新的证据似乎证实了先前提出的模型，如生长素的重要作用，但它们的发育仍知之甚少。从分析与植物蛋白相互作用的线虫效应蛋白可以清楚地看出，线虫操纵植物发育的许多方面，包括生长素运输和植物细胞分化途径。这些研究还揭示了效应蛋白在抑制植物应激和防御反应以建立取食细胞方面的作用。在未来几年，通过对线虫效应基因以及相关植物基因的功能分析，我们有望对植物-线虫相互作用有更深入的了解。
