NATIVE MICROBIOTA AND ARBUSCULAR MYCORRHIZAL FUNGI ON GROWTH OF Paspalum millegrana SCHRAD

Authors

  • Johny de Jesus Mendonça Departament of Agronomic Engineering, Universidade Federal de Sergipe, São Cristóvão, SE http://orcid.org/0000-0002-7690-6234
  • Larissa de Souza Gois Departament of Agronomic Engineering, Universidade Federal de Sergipe, São Cristóvão, SE http://orcid.org/0000-0003-2134-0509
  • Jacilene Francisca Souza Santos Departament of Agronomic Engineering, Universidade Federal de Sergipe, São Cristóvão, SE http://orcid.org/0000-0001-5109-3663
  • Tamiris Aparecida de Carvalho Santos Departament of Agronomic Engineering, Universidade Federal de Sergipe, São Cristóvão, SE http://orcid.org/0000-0002-7804-7533
  • Francisco Sandro Rodrigues Holanda Departament of Agronomic Engineering, Universidade Federal de Sergipe, São Cristóvão, SE http://orcid.org/0000-0001-6812-6679
  • Regina Helena Marino Departament of Agronomic Engineering, Universidade Federal de Sergipe, São Cristóvão, SE http://orcid.org/0000-0002-7295-3746

DOI:

https://doi.org/10.1590/1983-21252019v32n207rc

Keywords:

Poaceae. Soil microbiology. Endophytic fungi.

Abstract

Paspalum millegrana grass is a member of the family Poaceae native to the Americas, whose interaction with native symbiotic fungi has not yet been reported. The objective of this study was to evaluate the interactions between the native microorganisms and arbuscular mycorrhizal fungi in the development of P. millegrana Schrad. The experimental design was completely randomized with seven treatments (control, without AMF; native microbial inoculant; native + UFLA05 Gigaspora albida; native + UFLA351 Rhizoglomus clarum; native + UFLA372 Claroideoglomus etunicatum; native + UFLA401 Acaulospora morrowiae, and a mix of all treatments). The substrate was autoclaved sand and coconut powder at 2:1, with eight repetitions. The variables analyzed were: mycorrhizal colonization, dark septate endophytic fungi colonization, number of mycorrhizal spores, dry shoot mass, dry root mass, root length and volume, number of tiller and mycorrhizal dependence. Mycorrhizal arbuscular fungi and dark septate endophytic fungi colonized P. millegrana. The sporulation of arbuscular mycorrhizal fungi associated with P. millegrana was influenced by mycorrhizal colonization, depending on the fungus-plant interaction. P. millegrana was responsive to native + UFLA05 and native + UFLA351. No correlation between tiller emergence and mycorrhizal colonization of P. millegrana was observed.

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Published

16-05-2019

Issue

Section

Agronomy