Gheysen Godelieve, Fenoll Carmen
Vakgroep Moleculaire Genetica, Departement Plantengenetica, Vlaams Interuniversitair Instituut voor Biotechnologie (VIB), Universiteit Gent, K.L. Ledeganckstraat 35, Belgium.
Annu Rev Phytopathol. 2002;40:191-219. doi: 10.1146/annurev.phyto.40.121201.093719. Epub 2002 Feb 20.
The feeding sites induced by sedentary root-endoparasitic nematodes have long fascinated researchers. Nematode feeding sites are constructed from plant cells, modified by the nematode to feed itself. Powerful new techniques are allowing us to begin to elucidate the molecular mechanisms that produce the ultrastructural features in nematode feeding cells. Many plant genes that are expressed in feeding sites produced by different nematodes have been identified in several plant species. Nematode-responsive plant genes can now be grouped in categories related to plant developmental pathways and their roles in the making of a feeding site can be illuminated. The black box of how nematodes bring about such elaborate cell differentiation in the plant is also starting to open. Although the information is far from complete, the groundwork is set so that the functions of the plant and nematode genes in feeding site development can begin to be assessed.
定居型根内寄生线虫诱导形成的取食位点长期以来一直吸引着研究人员。线虫取食位点由植物细胞构建而成，线虫对其进行改造以实现自身取食。强大的新技术使我们能够开始阐明产生线虫取食细胞超微结构特征的分子机制。在几种植物物种中，已经鉴定出许多在不同线虫产生的取食位点中表达的植物基因。现在，线虫响应型植物基因可以按照与植物发育途径相关的类别进行分组，并且它们在取食位点形成过程中的作用也能够得到阐明。线虫如何在植物中引发如此精细的细胞分化这一黑箱也开始被打开。尽管信息还远不完整，但基础已经奠定，这样就可以开始评估植物和线虫基因在取食位点发育中的功能了。
