从高铜含量的葡萄园土壤中接种丛枝菌根真菌后,‘Paulsen 1103’(Vitis berlandieri x rupestris)葡萄砧木的生长、重金属吸收和光合作用

M. Betancur-Agudelo, E. Meyer, P. E. Lovato
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引用次数: 5

摘要

巴西南部老葡萄园的土壤由于多年施用杀菌剂而具有高铜积累,这可能影响年轻葡萄植株的生理和生长。丛枝菌根真菌(AMF)减轻金属的毒性作用,促进光合作用和植物生长。我们评估了接种来自矿区的根噬菌(Rh)或从高铜葡萄园土壤中分离的富含诱杀培养的AMF群落(Tc)是否能改善巴西Vale da Uva Goethe年轻(60年)葡萄园土壤中种植的葡萄砧木的生长和光合作用。种植在年轻葡萄园土壤中的葡萄菌根定植量高于种植在老葡萄园土壤中的葡萄。植物在老葡萄园土壤中比在新葡萄园土壤中生长得多,这与土壤中植物养分浓度有关。在两种土壤中,接种了tc的葡萄具有更高的光合活性,而接种了红曲霉的葡萄具有更高的碳同化能力。综上所述,葡萄在不同土壤条件下对AMF接种均表现出积极响应,高铜土壤的原生AMF群落具有接种葡萄的良好前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Growth, heavy metal uptake, and photosynthesis in 'Paulsen 1103' (Vitis berlandieri x rupestris) grapevine rootstocks inoculated with arbuscular mycorrhizal fungi from vineyard soils with high copper contents
Soils in old vineyards in southern Brazil have high copper accumulation due to fungicide applications over the years, which can affect physiology and growth of young grapevine plants. Arbuscular mycorrhizal fungi (AMF) alleviate toxic effects of metals and increase photosynthesis and plant growth. We evaluated whether inoculation with Rhizophagus clarus (Rh) from a mining area or with a trap-culture-enriched AMF community (Tc) isolated from a high-copper vineyard soil, improved growth and photosynthesis in grapevine rootstocks planted in young ( 60 years) vineyards soils of Vale da Uva Goethe, SC, Brazil. Mycorrhizal colonization was higher in grapevines installed in young vineyard soil than those planted in old vineyard soil. Plants grew more in the old vineyard soil than in the soil from a young vineyard, and that was related to plant nutrient concentration in the soil. In both soils, Tc-inoculated grapevines had higher photosynthetic activity, while those inoculated with R. clarus had higher carbon assimilation. In conclusion, grapevines showed a positive response to AMF inoculation in different soil conditions, and the native AMF community from high copper soils are promising for inoculation of grapevines.
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