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Mycorrhizal inoculation and phosphorus fertilization show contrasts on native s...
Prates Júnior,Paulo; Moreira,Bruno Coutinho; Silva,Marliane de Cássia Soares da; Diogo,Nayron Vilela; Luz,José Maria Rodrigues daABSTRACT Restoration of degraded sites by using native plants like Plathymenia reticulata Benth. and Melanoxylon brauna Schot. is advisable. However, seedlings of both species, when raised on commercial substrates, may present low survival. This study aimed to evaluate the growth of seedlings under inoculation with arbuscular mycorrhizal fungi (AMF). The seedlings were raised on soil sampled from near an adult ...
Structure of AMF Community in an Agroforestry System of Coffee and Macauba Palm
Prates Júnior,Paulo; Moreira,Sandro Lucio Silva; Jordão,Thuany Cerqueira; Ngolo,Aristides Osvaldo; Moreira,Bruno Coutinho; Santos,Ricardo Henrique SilvaAbstract Coffee crop in Brazil is typically grown as a monoculture. However, we hypothesized that agroforestry system is favorable association for arbuscular mycorrhizal fungi (AMF), affecting its community structure and potentially impacting crop productivity and agroecosystem health. This study evaluated how the microclimate, soil depth, macauba field spacing and distance between coffee plants and palms affec...
Effect of Inoculation of Pineapple Plantlets with Arbuscular Mycorrhizal Fungi ...
Moreira,Bruno Coutinho; Prates Junior,Paulo; Jordão,Thuany Cerqueira; Silva,Marliane de Cássia Soares da; Ribeiro,Ana Paula FerreiraABSTRACT The production of inoculum from arbuscular mycorrhizal fungi (AMF) at a large scale and low cost is essential for establishing methods to assist in producing pineapple plantlets with high nutritional and phytosanitary quality. However, this objective is difficult to accomplish because of the biotrophic nature of these fungi. The on-farm multiplication method for AMF inoculum presents a good alternative...
Cyrtopodium paludicolum germination with two Tulasnella isolates
Carvalho,Otieres Cirino de; Paiva Neto,Vespasiano Borges de; Padilha,Daly Roxana Castro; Veloso,Tomás Gomes Reis; Bocayuva,Melissa FaustABSTRACT Symbiosis between orchid seeds and mycorrhizal fungi has been reported to be a determining factor in the success of germination and protocorm development in vitro. The aim of this study was to isolate and identify by molecular analysis the mycorrhizal fungus associated with Cyrtopodium paludicolum, and to evaluate its efficiency in facilitating seed germination and development. Germination experiments ...
Characterization of seed germination and protocorm development of Cyrtopodium g...
Pereira,Marlon Corrêa; Rocha,Diego Ismael; Veloso,Tomás Gomes Reis; Pereira,Olinto Liparini; Francino,Dayana Maria TeodoroCyrtopodium glutiniferum is an endemic orchid of Brazil with potential medicinal and ornamental applications. As mycorrhizal fungi are essential for the initiation of the orchid life cycle, the aim of this study was to determine the strains of mycorrhizal fungi suitable for seed germination and protocorm development of C. glutiniferum and to characterize the symbiotic development of protocorms. Seeds of C. glut...
Symbiotic propagation of seedlings of Cyrtopodium glutiniferum Raddi (Orchidaceae)
Guimarães,Fernanda Aparecida Rodrigues; Pereira,Marlon Corrêa; Felício,Cristiane da Silva; Torres,Denise Pereira; Oliveira,Sabrina FelicianoIn nature, orchid seeds obtain the nutrients necessary for germination by degrading intracellular fungal structures formed after colonization of the embryo by mycorrhizal fungi. Protocols for asymbiotic germination of orchid seeds typically use media with high concentrations of soluble carbohydrate and minerals. However, when reintroduced into the field, seedlings obtained via asymbiotic germination have lower ...
Use of sorghum straw (Sorghum bicolor) for second generation ethanol production...
Cardoso,Wilton Soares; Tardin,Flávio Dessaune; Tavares,Gabriella Peterlini; Queiroz,Paula Viana; Mota,Samuel Sampaio; Kasuya,Maria Catarina MegumiAgronomic biomass yields of forage sorghum BRS 655 presented similar results to other energy crops, producing 9 to 12.6 tons/ha (dry mass) of sorghum straw. The objective of this study was to evaluate the lignocellulosic part of this cultivar in terms of its potential in the different unit processes in the production of cellulosic ethanol, measuring the effects of pretreatment and enzymatic hydrolysis. Three ty...
Micorriza arbuscular e a tolerância das plantas ao estresse
Folli-Pereira,Muriel da Silva; Meira-Haddad,Lydice Sant'Anna; Bazzolli,Denise Mara Soares; Kasuya,Maria Catarina MegumiFungos micorrízicos arbusculares (FMAs) são fungos de solo, biotróficos obrigatórios e formadores da simbiose mutualista mais comum na natureza: a micorriza arbuscular (MA). Essa associação ocorre nas raízes da maioria das plantas terrestres, promovendo melhorias no crescimento, desenvolvimento e aumento na tolerância e, ou, resistência das plantas a vários agentes ambientais adversos. Além disso, os FMAs podem...
Thermostability of xylanolytic enzymes produced by Lentinula edodes UFV70
Ribeiro,Liliane Fraga Costa; Vaz,Marcelo Gomes Marçal Vieira; Chaves-Alves,Virgínia Maria; Vanetti,Maria Cristina Dantas; Kasuya,Maria Catarina MegumiXylanolytic enzymes produced by Lentinula edodes UFV70, cultivated in eucalyptus sawdust/rice bran medium, were stable at 50, 60 and 65ºC for 21 hours, losing only 15-25% activity. Fungus incubation at 50ºC for 12 hours and at 65ºC for 24 hours increased the amount of xylose produced.
Lignocellulolytic enzyme production of Pleurotus ostreatus growth in agroindust...
Luz,José Maria Rodrigues da; Nunes,Mateus Dias; Paes,Sirlaine Albino; Torres,Denise Pereira; Silva,Marliane de Cássia Soares daThe mushroom Pleurotus ostreatus has nutritional and medicinal characteristics that depend on the growth substrate. In nature, this fungus grows on dead wood, but it can be artificially cultivated on agricultural wastes (coffee husks, eucalyptus sawdust, corncobs and sugar cane bagasse). The degradation of agricultural wastes involves some enzyme complexes made up of oxidative (laccase, manganese peroxidase and...