Singh S J, Tewari R P
Acta Microbiol Pol. 1979;28(4):311-4.
Investigations on the rhizosphere mycoflora of healthy and virus (YVMV) infected okra plants showed a higher fungal population in the rhizosphere of healthy plants at preflowering and post-flowering stages than in that of diseased ones. Maximum population was observed during flowering both in healthy and diseased plant rhizosphere as well as in non-rhizosphere soil. However, virus infected plants showed a higher population at the flowering stage than healthy ones. The quantitative differences in the rhizosphere of healthy and diseased plants during flowering seem to be due to a change in C/N ratio and amino acids. The drastic reduction in diseased plant rhizospheres during the post-flowering stage may be due to either change in C/N ratio unfavourable to mycoflora or production of some toxic substances inhibiting multiplication of the mycoflora.
对健康和感染病毒（YVMV）的秋葵植株根际真菌区系的调查表明，在开花前期和开花后期，健康植株根际的真菌数量高于患病植株。在健康和患病植株的根际以及非根际土壤中，开花期的真菌数量均达到最大值。然而，病毒感染植株在开花期的真菌数量高于健康植株。开花期健康和患病植株根际的数量差异似乎是由于碳氮比和氨基酸的变化。开花后期患病植株根际真菌数量的急剧减少可能是由于碳氮比的变化不利于真菌区系，或者是产生了一些抑制真菌区系繁殖的有毒物质。
