期刊
FUNGAL BIOLOGY
卷 122, 期 9, 页码 918-927出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.funbio.2018.05.009
关键词
Arbuscular mycorrhizal fungi; Jurema-preta; Phenolic compounds; Phosphorus
类别
资金
- Fundacao de Amparo a Ciencia e Tecnologia do Estado de Pernambuco (FACEPE) [0393-5.01/15]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [446144/2014-1, 307.129/2015-2]
In this study, we report the effects of arbuscular mycorrhizal fungi (AMF) and increasing doses of phosphorus (P) on the growth and production of secondary metabolites in Mimosa tenuiflora, a medicinal species native to Brazil. We used a completely randomized design with four inoculation treatments: Control not inoculated (1); Claroideoglomus etunicatum (2); Gigaspora albida (3); and C. etunicatum + G. albida (4) and four doses of P; PO baseline dose, P8, P16 and P32. After 70 d in a greenhouse, growth, mycorrhizal variables, biochemical and phytochemical parameters were evaluated. Compared to non-mycorrhizal plants, mycorrhized M. tenuiflora seedlings showed greater: growth, greater photosynthetic performance and content of soluble carbohydrates and secondary metabolites, with the most significant benefits occurring in soil with low to moderate P content (up to 16 mg kg(-1)). The plant growth is severely restricted at low P levels, but the addition of AMF appears to remove this limiting factor. Although M. tenuiflora responds to levels of phosphate fertilization, it responds well to mycorrhizal inoculation, especially with G. albida, which promotes benefits for the initial growth and secondary metabolite content in this plant species of medical and potential commercial interest and may be used instead of phosphate fertilizer. (C) 2018 British Mycological Society. Published by Elsevier Ltd. All rights reserved.
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