September 2018

Characterization of fluorescent Pseudomonas from Oryza sativa L. rhizosphere with antagonistic activity against Pyricularia oryzae (SACC.)

The aim of this work was to select and characterize native Cuban fluorescent Pseudomonas from the rhizosphere of Oryza sativa with in vitro and in vivo antagonistic activity against Pyricularia oryzae. A total of 200 isolates were recovered with the typical growth and cultural characteristics of fluorescent Pseudomonas. The results showed that 12.5% of total isolates were capable of inhibiting mycelial growth, with...

Author(s): Annia Hernández-Rodríguez, Yanelis Acebo-Guerrero, Gema Pijeira Fernández, Acela Díaz de la Osa and Gloria Maria Restrepo-Franco  

September 2018

Chromium (III) and its effects on soil microbial activities and phytoremediation potentials of Arachis hypogea and Vigna unguiculata

The aim of this research was to evaluate the impact of chromium (III) nitrate on soil microbial activities and growth performance and phytoremediation potentials of two staple leguminous crops, namely cowpea (Vigna unguiculata) and groundnut (Arachis hypogea). Pristine sandy loam soil samples were polluted with nitrate salts of chromium (III) at four different levels (50, 100, 200 and 400 mg/kg) in triplicates. There...

Author(s): Chibuzor Nwadibe Eze, Chuks Kenneth Odoh, Emmanuel Aniebonam Eze, Paul Ikechukwu Orjiakor, Simeon Chukwuemeka Enemuor and Uchenna Jude Okobo  

September 2018

Phytochemical and proximate composition of cucumber (Cucumis sativus) fruit from Nsukka, Nigeria

Cucumber (Cucumis sativus L.) is very common, cultivated throughout the world and often eaten as a raw vegetable without cooking. In this study, the phytochemical and proximate compositions of cucumber were investigated. Quantitative phytochemical analysis of the homogenate of C. sativus fruit showed that reducing sugars (574.36 ± 3.88 mg/g) was highest amount when compared to other phytochemicals, alkaloids...

Author(s): Uzuazokaro Mark-Maria Agatemor, Okwesili Fred Chiletugo Nwodo and Chioma Assumpta Anosike  

September 2018

Trichoderma atroviride 102C1: A promising mutant strain for the production of a β-glucosidase, -xylosidase and -L-arabinofuranosidase activities using agroindustrial by-products

Holocellulolytic accessory enzymes are very important in assisting hydrolysis of biomass. The use of these enzymes in the enzymatic hydrolysis of plant biomass is very important for obtaining building blocks in the concept of biorefinery. In previous studies, the mutant strain Trichoderma atroviride 102C1 was tested for production of endoglucanases, FPases and endoxylanases. This study aimed at evaluating the efficiency...

Author(s): Jéssica Caroline Araujo SILVA, André Luiz Grigorevski-Lima, Elba Pinto da Silva BON, Rosalie Reed Rodrigues COELHO and Rodrigo Pires do NASCIMENTO