effect of arbuscular mycorrhizal fungi on young vines in copper-contaminated soil

effect of arbuscular mycorrhizal fungi on young vines in copper-contaminated soil

;Vítor Gabriel Ambrosini;Joana Gerent Voges;Ludiana Canton;Rafael da Rosa Couto;Paulo Ademar Avelar Ferreira;Jucinei José Comin;George Wellington Bastos de Melo;Gustavo Brunetto;Cláudio Roberto Fonsêca Sousa Soares
ieee software 2015 Vol. 46 pp. 1045-1052
315
ambrosini2015brazilianeffect

Abstract

Abstract High copper (Cu) levels in uprooted old vineyard soils may cause toxicity in transplanted young vines, although such toxicity may be reduced by inoculating plants with arbuscular mycorrhizal fungi (AMF). The objective of this study was to evaluate the effects of AMF on the plant growth, chlorophyll contents, mycorrhizal colonization, and Cu and phosphorus (P) absorption in young vines cultivated in a vineyard soil contaminated by Cu. Commercial vineyard soil with high Cu levels was placed in plastic tubes and transplanted with young vines, which were inoculated with six AMF species (Dentiscutata heterogama, Gigaspora gigantea, Acaulospora morrowiae, A. colombiana, Rhizophagus clarus, R. irregularis) and a control treatment on randomized blocks with 12 replicates. After 130 days, the mycorrhizal colonization, root and shoot dry matter (DM), height increment, P and Cu absorption, and chlorophyll contents were evaluated. The height increment, shoot DM and chlorophyll contents were not promoted by AMF, although the root DM was increased by R. clarus and R. irregularis, which had the greatest mycorrhizal colonization and P uptake. AMF increased Cu absorption but decreased its transport to shoots. Thus, AMF species, particularly R. clarus and R. irregularis, contribute to the establishment of young vines exposed to high Cu levels.

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ID: 142336
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0x95644003c57E6F55A65596E3D9Eac6813e3566dA
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142336
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10.1590/S1517-838246420140622
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