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Arbuscular mycorrhizal associations and dark septate endophytes in Yacon (Smallanthus sonchifolius) and a wild relative (Smallanthus macroscyphus) Boletín de la Sociedad
Mercado,Maria I; Coll Aráoz,Maria V; Brandán De Weht,Celia I; Ponessa,Graciela I; Grau,Alfredo.
Mycorrhizal associations in Smallanthus sonchifolius (Poepp. & Endl.) H. Robinson (Asteraceae), Yacon, an ancient Andean crop and Smallanthus macroscyphus (Baker ex Martius) A. Grau, wild yacon, a close wild relative are described for the frst time. Yacon fbrous roots growing under feld conditions have high levels of colonization by arbuscular mycorrhizal fungi (86 %). Other fungi colonizing roots included dark septate endophytes (45 %) and unidentifed fungi that are probably saprophytic (25 %) were observed. Only 9% of the samples analyzed were not colonized by any type of fungi. Glomus, Acaulospora, Scutellospora, Gigaspora and Pacispora were the main genera of arbuscular mycorrhiza identifed. A similar high degree of mycorrhizal colonization was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Smallanthus sonchifolius; Smallanthus macroscyphus; Mycorrhizas; Arbuscular mycorrhizas; Dark septate endophytes.
Ano: 2013 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722013000200002
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Arbuscular mycorrhizal fungi associated with upland rice in a rotational shifting cultivation system International Rice Research Institute
Youpensuk, S.; Yimyam, N.; Rerkasem, B.; Dell, B..
p.22-23
Palavras-chave: Endomycorrhizae; Fallow; Mycorrhizal fungi; Mycorrhizas; Rhizosphere fungi; Roots; Species diversity; Upland rice; Vesicular arbuscular mycorrhizas.
Ano: 2005 URL: http://hdl.handle.net/123456789/1150
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Recovery of degraded areas revegeted with Acacia mangium and Eucalyptus with special reference to organic matter humification Scientia Agricola
Schiavo,Jolimar Antonio; Busato,Jader Galba; Martins,Marco Antonio; Canellas,Luciano Pasqualoto.
Humidified fractions of organic matter and soil microorganism populations are used as environmental quality indicators. This work aimed to study the changes in chemical and microbiological soil attributes, as well as in the humidified fractions, of the organic matter in a substrate from a clay extraction area cropped with Brachiaria mutica, Acacia mangium and Eucalyptus. In the Eucalyptus area, the P contents increased linearly with planting time. However, only at the twelfth year, differences between Eucalyptus and B. mutica areas have occurred. In the A. mangium area, such differences in the P content occurred at the third year with increment of 43%, at the 0-10 cm layer, in relation to B. mutica. Also, at the 0-10 cm layer, the total carbon contents...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arborous legumes; Mycorrhizas; Rhizobium; Humic substances; Soil micro biota.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000300010
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