Regina Helena Marino
Universidade Federal de Sergipe
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Featured researches published by Regina Helena Marino.
Natural Resources | 2011
Ângela C. F. Costa; Regina Helena Marino; Geisi Azevedo Silva; Thaís Ávila Almeida; Klebson Soares do Nascimento; João Basílio Mesquita
O presente trabalho teve como objetivo coletar e identificar fungos macroscopicos em povoamentos de eucalipto entre 1 e 7 anos, na primavera e no inverno, no estado da Bahia. Foram coletados 70 exemplares de fungos e os identificados foram: Agaricus sp., Auricularia sp., Clavaria sp., Cyathus sp, Dictyophora sp., Hygroporus sp., Inonotus sp., Oxyporus sp., Pisolithus sp., Pycnoporus sp., Rigidoporus sp., Schizopora sp., Scleroderma sp., Telephora sp., Phellinus cf gilvus (Schwein.) Pat., Phellinus contiguus (Pers.) Pat., Hexagonia hydnoides (Sw. ex Fr.) K. Fidalgo, Trametes villosa (Fr.) Kreisel, Pycnoporus sanguineus (L.) Murr, Lenzites stereoides (Fr.) Ryvarden, Schyzophyllum commune Fr., Microporellus obovatus (Jungh.) Ryvarden, Rigidoporus biokoensis (Lloyd) Ryvarden, Polyporus tricholoma Mont., Lentinus critinus (L.: Fr.) Fr. e Lentinus velutinis Fr.. A maior densidade de especies de fungos ocorreu no inverno (periodo chuvoso) e em povoamentos de eucalipto com 01 ano de idade.
Natural Resources | 2011
Sandra Santos Mendes; João Basílio Mesquita; Regina Helena Marino
O objetivo deste trabalho foi identificar a micobiota associada as sementes de leucena armazenadas por 2, 28 e 48 meses, avaliar a transmissao e a potencialidade de causar doencas nas plântulas. Para identificacao da micobiota utilizou-se o teste Blotter, com um lote de 400 sementes dividido em duas amostras, com e sem desinfestacao superficial. No teste de transmissao foram semeadas 100 sementes em caixas de polietileno contendo vermiculita autoclavada e os sintomas avaliados diariamente apos o quarto dia de emergencia. A colonizacao latente foi realizada com cortes das plântulas assintomaticas do teste de transmissao, desinfestadas, tratadas com Paraquat, cultivados em BSA-rb (batata-sacarose-agar + rosa bengala) e observado o crescimento fungico. No teste de sanidade foram detectados os fungos Arpergillus e Penicillium em todos lotes de sementes. As sementes armazenadas por 2 meses apresentaram maior diversidade de fungos, com a ocorrencia de Fusarium, Pestalotiopsis, Acrophialophora e Curvularia. Nao foi verificada transmissao dos fungos detectados para as plântulas. Na colonizacao latente em plântulas provenientes de sementes armazenadas por 2 meses houve maior diversidade de fungos.
Revista Caatinga | 2018
Jessica Silva Santos; Jacilene Francisca Souza Santos; Lázara Jossikarla de Oliveira Lopes; Johny de Jesus Mendonça; Francisco Sandro Rodrigues Holanda; Regina Helena Marino
Vetiver grass is a member of the grass family Poaceae. Its fast development is probably due to the interaction with native microbiota, whose influence has not been studied yet. The objective of this work was to evaluate the colonization and development of the vetiver grass (Chrysopogon zizanioides (L.) Roberty) inoculated with arbuscular mycorrhizal fungi and dark septate endophytic fungi. The experimental design was a completely randomized design with six treatments (control, without mycorrhizal fungi, native inoculants, UFLA05 – Gigaspora albida, UFLA351 – Rhizoglomus clarum, UFLA372 – Claroideoglomus etunicatum, and UFLA401 – Acaulospora morrowiae), with three replicates each. Vetiver grass tillers as well as the native microbial inoculum were obtained from the Lower São Francisco river experimental area, located in Sergipe state, Northeastern Brazil. There was a negative interaction between all tested UFLAs mycorrhizal isolates and the native microbiota (mycorrhizal and endophytic fungi) in the treatments, especially when taking into consideration plant height and volume of roots. The effects of inoculation with UFLA isolates may have been influenced by the presence of the native mycorrhizal fungi and the dark septate endophytic fungi. Vetiver grass was responsive to the native inoculant. The mycorrhizal colonization of the vetiver grass was vesicular, but the formation of the arbuscules can be influenced by the interaction between the fungus, plant, and the environment.
Revista Caatinga | 2018
Tamiris Aparecida de Carvalho Santos; Geovania dos Santos Menezes; Jessica Silva Santos; Larissa de Souza Gois; Sérgio Luiz Mendonça Nascimento; Regina Helena Marino
The objective of this work was to evaluate the interaction of microorganisms and phosphorus dosages in the development of gliricidia. The experimental design was completely randomized with six treatments (control, native microbial inoculant, and four arbuscular mycorrhizal fungi isolates: UFLA05 Gigaspora albida, UFLA351 Rhizoglomus clarum, UFLA372 Claroideoglomus etunicatum, and UFLA401 Acaulospora morrowiae), with four replicates. The parameters evaluated were: height plant, the number of branches, shoot and root dry mass matter, root length and volume, leaf phosphorus, mycorrhizal colonization, the number of spores of the arbuscular mycorrhizal fungi, the number of nodules of nitrogen fixing bacteria, and the presence of endophytic dark septate fungi, after 95 days of inoculation. The high mycorrhizal colonization of gliricidia does not guarantee an increase in biomass, which depends on the interaction of the arbuscular mycorrhizal fungi, the endophytic dark septate fungi, the nitrogen fixing bacteria, and the endophytic bacteria. Gliricidia was responsive to the inoculation of the native microbiota, UFLA372 and UFLA401. Mycorrhizal colonization by UFLA401 was influenced by the presence of nitrogen fixing bacteria. Gliricidia was not responsive to the inoculation of UFLA05 and UFLA351. The presence of the endophytic dark septate fungi did not inhibit mycorrhization and the formation of nodules of nitrogen fixing bacteria in gliricidia.
Ciencia E Agrotecnologia | 2017
Geovania dos Santos Menezes; Tamiris Aparecida de Carvalho; Wandson dos Santos Almeida; Eliana Midori Sussuchi; Pedro Roberto Almeida Viégas; Regina Helena Marino
The evaluation of the bioremediation potential of microbial with dyes in solid and liquid culture media has been described, but prior studies have not mentioned which culture method is most appropriate for selection of microorganisms. Therefore, the aim of this work was to evaluate the bioremediation potential of filamentous fungi in liquid and solid culture media with methylene blue. The fungi isolates tested were Pleurotus ostreatoroseus (POR-SP1, POR-SP2), P. ostreatus (DF39, EF58 and EF60), Pycnoporus sanguineus (PS) and Fusidium sp. (FUS). The methylene blue concentrations tested were 0, 5, 10, and 50 mg L-1 in the solid medium and 0, 5, 25, 50, and 100 mg L-1 in the liquid medium. In the solid medium, the mycelial diameters of DF39, EF58, FUS, and PS were not influenced by the increase in dye concentration. In the liquid medium, DF39, EF58, EF60, and FUS showed a constant methylene blue degradation rate with increasing dye concentration. The dye degradation rate was correlated with the pH of the liquid medium for EF58, EF60, and FUS. The lower diameter growth in the solid medium did not influence the methylene blue dye degradation rate in the liquid medium.
Scientia Plena | 2012
Regina Helena Marino; Luiz Antonio Augusto Gomes; Elizangela Mércia de Oliveira Cruz; Anderson de Carvalho Silva; Flávio Gabriel Bianchini; Thais Nascimento Meneses; Hércules Rosário Santos; Arie Fitzgerald Blank
Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences | 2009
Regina Helena Marino; João Basílio Mesquita
Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences | 2008
Regina Helena Marino; João Basílio Mesquita; Karen V. S. de Andrade; Naiara A. da Costa; Luise A. Amaral
Scientia Plena | 2013
Regina Helena Marino; Danielle Guilherme C. da Silva
Archive | 2013
Regina Helena Marino; D. G. C. da Silva