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首页> 外文期刊>Mycorrhiza News >Mustard (Brassica campestris L) cultivation reduces the vesicular-arbuscular mycorrhizal advantage of successive crops
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Mustard (Brassica campestris L) cultivation reduces the vesicular-arbuscular mycorrhizal advantage of successive crops

机译：芥菜（Brassica campestris L）的种植减少了后续作物的水泡-丛枝菌根优势

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摘要

The VAM (vesicular-arbuscular mycorrhizal) fungi are widely distributed and associated with more than 90% of land plants with the exception of a few families (Harley and Smith 1983). The special relationship established between plants and fungi implies a high degree of structural, physiological, and biochemical integration from which both the partners benefit (Azcon-Aguilai and Bago 1994). The VAM symbiosis is receiving attention because of its increasing range of application in practical fields likesustainable agriculture (Bethlenfalvay and Schuepp 1994). In general, agricultural practices, tendencies to use high-dose phosphate and other fertilizers decrease the colonization and effectivity of VAM (Menge, Steirle, Bagyaraj, et al. 1978; Braunbergei, Millet, and Peterson 1991). In addition, growing non-mycorrhizal crops disturbs the ecology of the VAM in soil by blocking the carbon supply to the fungus and the biochemical changes in rhizosphere prevent germination of propagules, and decrease theirviability (Stahl, Williams, and Christian 1988). As an obligate symbiont, the VAM fungi fail to survive without the host plant. Among non-mycorrhizal agricultural crops, most belong to Brassicaceae. The isothiocyanates produced by this family are potential inhibitors for colonization of VAM (Schreinei and Koide 1993).
机译：VAM（丛状丛枝菌根）真菌分布广泛，除少数家庭外，与90％以上的陆地植物有关（Harley和Smith，1983）。在植物和真菌之间建立的特殊关系意味着高度的结构，生理和生化整合，双方都将从中受益（Azcon-Aguilai和Bago 1994）。 VAM共生因其在诸如可持续农业等实际领域中的广泛应用而受到关注（Bethlenfalvay和Schuepp 1994）。通常，在农业实践中，使用高剂量磷酸盐和其他肥料的趋势会降低VAM的定殖和有效性（Menge，Steille，Bagyaraj等人1978; Braunbergei，Millet和Peterson 1991）。此外，生长的非菌根作物通过阻断真菌的碳供应，扰乱了土壤中VAM的生态，根际的生化变化阻止了繁殖体的萌发并降低了它们的生存能力（Stahl，Williams和Christian 1988）。作为专性共生体，VAM真菌在没有寄主植物的情况下无法存活。在非菌根农作物中，大多数属于十字花科。该家族产生的异硫氰酸酯是VAM定殖的潜在抑制剂（Schreinei和Koide 1993）。

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