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首页> 外文期刊>Revista rvore >Ocorrência e atividade de fungos micorrízicos arbusculares em plantios de eucalipto (eucalyptus sp.) no litoral norte da Bahia, Brasil
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Ocorrência e atividade de fungos micorrízicos arbusculares em plantios de eucalipto (eucalyptus sp.) no litoral norte da Bahia, Brasil

机译：桉树种植园（桉树SP）的丛枝菌根真菌的发生及活性在巴西巴哈伊北海岸

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摘要

In recent decades, alternative technologies have been studied in order to make the cultivation of eucalyptus more economical and sustainable. Among these, the mycorrhizal associations deserve mention because of the many benefits they provide to host plants. Mycorrhizal fungi (AMF) form mutualistic association with plant roots, promoting greater uptake of nutrients to the host, which in turn yields products of photosynthesis to the fungus. With the establishment of the association, the plants become more resistant to adverse conditions such as nutrient-poor soil, low pH, high temperature, water stress, decreased microbial activity, among other biotic and abiotic stresses. This study aimed to evaluate the occurrence and activity of mycorrhizal fungi in eucalypt plantations used commercially by Copener Florestal Ltda. northern coast of Bahia. A high variability in the density of spores (36.2 to 203.2 spores in 50 g of soil), mycorrhizal colonization (10.6 to 57.8%) and levels of easily extractable glomalin and total (0.34 to 1.92 mg g-1 soil and 0.48 to 3.88 mg g soil-1) in plantations. The results of this study showed that although the clones showing susceptibility to mycorrhizal infection in field conditions, variations in soil characteristics affect the ecological aspects of mycorrhizal fungi in plantations of eucalyptus Copener Florestal Ltda. northern coast of Bahia.
机译：近几十年来，已经研究了替代技术，以使桉树栽培更经济和可持续。其中，菌根协会应该有所提到，因为他们提供给寄宿植物的许多益处。菌根真菌（AMF）与植物根部形成互联网，促进对宿主的更大吸收，从而产生对真菌的光合作用产品。随着协会的建立，植物对不利条件的耐药物，诸如营养不良的土壤，低pH，高温，水分应激，微生物活性降低，植物较低，在其它生物和非生物应激等中。本研究旨在评估由Copener Florestal Ltda商业化工地使用的桉树种植园菌根菌的发生和活性。巴伊亚北部海岸。孢子密度的高度变化（36.2至203.2孢子，50克土壤），菌根殖民化（10.6至57.8％）和易于提取的肾甘油的水平和总量（0.34至1.92mg G-1土壤和0.48至3.88毫克g土壤-1）在种植园中。该研究的结果表明，尽管克隆显示出对现场条件的腐殖虫感染的敏感性，但土壤特征的变化会影响桉树Copener Florestal Ltda种植园中腐蚀虫真菌的生态方面。巴伊亚北部海岸。

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