Grandison G S, Cooper K M
J Nematol. 1986 Apr;18(2):141-8.
The interaction between vesicular-arbuscular mycorrhizal (VAM) fungi and the root-knot nematode (Meloidogyne hapla) was investigated using both nematode-susceptible (Grasslands Wairau) and nematode-resistant (Nevada Synthetic XX) cultivars of alfalfa (Medicago sativa) at four levels of applied phosphate. Mycorrhizal inoculation improved plant growth and reduced nematode numbers and adult development in roots in dually infected cultures of the susceptible cultivar. The tolerance of plants to nematode infection and development when preinfected with mycorrhizal fungi was no greater than when they were inoculated with nematodes and mycorrhizal fungi simultaneously. Growth of plants of the resistant cultivar was unaffected by nematode inoculation but was improved by mycorrhizal inoculation. Numbers of nematode juveniles were lower in the roots of the resistant than of the susceptible cultivar and were further reduced by mycorrhizal inoculation, although no adult nematodes developed in any resistant cultivar treatment. Inoculation of alfalfa with VAM fungi increased the tolerance and resistance of a cultivar susceptible to M. hapla and improved the resistance of a resistant cultivar.
利用紫花苜蓿（Medicago sativa）对线虫敏感的品种（草地怀劳）和对线虫具有抗性的品种（内华达合成XX），在四个施磷水平下，研究了泡囊-丛枝菌根（VAM）真菌与根结线虫（Meloidogyne hapla）之间的相互作用。在易感品种的双重感染培养物中，菌根接种改善了植物生长，减少了线虫数量以及根中成虫的发育。当预先接种菌根真菌时，植物对线虫感染和发育的耐受性并不比同时接种线虫和菌根真菌时更高。抗性品种的植物生长不受线虫接种的影响，但菌根接种可使其生长得到改善。抗性品种根中线虫幼虫的数量低于易感品种，并且菌根接种进一步减少了幼虫数量，尽管在任何抗性品种处理中都没有发育出成虫线虫。用VAM真菌接种苜蓿增加了对hapla根结线虫易感品种的耐受性和抗性，并提高了抗性品种的抗性。
