Postharvest suppression of potato dry rot (Fusarium sambucinum) in prenuclear minitubers by arbuscular mycorrhizal fungal inoculum
Postharvest suppression of potato dry rot (Fusarium sambucinum) in prenuclear minitubers by arbuscular mycorrhizal fungal inoculum
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丛枝菌根真菌接种物对核前微型薯的马铃薯干腐病（接骨木镰刀菌）的采后抑制
DOI：
10.1007/bf02851696
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
G. Safir
中科院分区：
文献类型：
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作者：
B. Niemira;R. Hammerschmidt;G. Safir
丛枝菌根（AM）已被证明可以增加植物对根腐病原体的抗性。本研究旨在确定含有AM真菌Glomus intraradix（Schenck & Smith）的商业泥炭基培养基是否会影响马铃薯（Solanum tuberosum）核前微型块茎的块茎干腐病采后进展。在这种培养基中生长的微型薯有显着减少块茎干腐（20-90%减少），当后来接种干腐真菌接骨木镰刀菌相对于微型薯生长在一个相同的泥炭为基础的培养基没有AM真菌。这种疾病的抑制也表现在一个高投入的商业温室中，尽管只有微量水平的AM定植的亲本植物，并没有证据表明增强植物磷营养或微型块茎矿物质含量的差异。这些结果表明，AM真菌接种物在抑制马铃薯块茎干腐病上具有潜在的应用价值。
Arbuscular mycorrhizae (AM) have been shown to increase plant resistance to root-rotting pathogens. This study was conducted to determine whether a commercial peat-based medium containing the AM fungusGlomus intraradix(Schenck & Smith) could influence postharvest progression of tuber dry rot in prenuclear minitubers of potato (Solanum tuberosum). Minitubers grown in this medium had significantly less tuber dry rot (20–90% reduction) when later inoculated with the dry rot fungusFusarium sambucinumrelative to minitubers grown in an identical peat-based medium without the AM fungus. This disease suppression was also demonstrated in a high-input commercial greenhouse, and occurred despite only trace levels of AM colonization of the parent plants, and with no evidence of enhanced plant phosphorus nutrition or differences in minituber mineral content. These results suggest that the AM fungal inoculum has potential for use in suppression of tuber dry rot of potato.