Pinochet J, Raski D J, Goheen A C
J Nematol. 1976 Oct;8(4):330-5.
Inoculation of 'Thompson Seedless' grapevines with 500 Xiphinerna index or 1,000 Pratylenchus vulnus alone or in combination suppressed vine shoot and root growth under greenhouse conditions. Pratytenchus vulnus caused greater stunting of roots than X. index. Each nematode species inhibited top growth about equally. Concomitant inoculations caused greater stunting of tops and roots than did inoculations of either nematode species alone. Differences in growth between inoculated and control plants increased with exposure time. Pratylenchus vulnus competed with and gradually superseded in numbers an established population of X. index. Both species reproduced on 'Thompson Seedless' roots, but P. vulnus increased to a much higher level than did X. index. The increase of P. vulnus, together with extensive damage, proves its pathogenicity to grapevines.
在温室条件下,单独或联合用500条加州剑线虫或1000条穿刺短体线虫接种“汤普森无核”葡萄藤,会抑制藤蔓枝条和根系生长。穿刺短体线虫比加州剑线虫对根系造成的矮化更严重。每种线虫对地上部生长的抑制作用大致相同。同时接种比单独接种任何一种线虫对地上部和根系造成的矮化更严重。接种植株与对照植株之间的生长差异随暴露时间增加。穿刺短体线虫与已定植的加州剑线虫种群竞争,并在数量上逐渐取代后者。两种线虫都能在“汤普森无核”葡萄的根系上繁殖,但穿刺短体线虫的数量增长幅度远高于加州剑线虫。穿刺短体线虫数量的增加以及广泛的损害证明了它对葡萄藤具有致病性。