Approximately 75% of the worldwide production hard natural fibers originates from sisal, an industrial crop arid and semiarid tropical regions. Brazil is world's largest producer sisal fiber, accounting for more than 40% production, bole rot disease has been main phytosanitary problem this crop. All previous studies reporting Aspergillus niger as causal agent were based on morphological features fungal isolates infected plant tissues in pure cultures. Black aspergilli are one most complex...

ABSTRACT The cocoa and palm oil agro-industries active in the state of Bahia, Brazil, generate high quantities lignocellulosic wastes that could be recycled through their use formulation substrates to cultivate edible mushrooms. Pleurotus ostreatus, also known as oyster mushroom, is second most cultivated mushroom world due its highly appreciated gastronomic, nutritional, medicinal characteristics. This work evaluated vertical mycelium growth, biological efficiency, yield, nutritional...

The aim of this paper was to investigate the physicochemical characteristics and rheological behavior some floral honeys from species wild plants found in Caatinga biome, as well as, correlate honey viscosities with its chemical composition. Thus, five predominance typical foraged by honeybees were analyzed. Results showed that moisture content ranged 17.45 21.50 g/100g. samples exhibited higher fructose (37.58 - 43.95 g/100g) lower glucose (27.41- 33.80 g/100g). glucose-water ratio 1.55...

Aspergillus welwitschiae is a species of the Nigri section genus Aspergillus. In nature, it usually saprotroph, decomposing plant material. However, causes bole rot disease Agave sisalana (sisal), used for extraction hard natural fibers, causing great economic loss to this culture. study, we isolated and sequenced one genome A. (isolate CCMB 674 (Collection Cultures Microorganisms Bahia)) from stem tissues sisal performed in silico wet lab experimental strategies describe its ability produce...

Essential oils of seven species were investigated in order to control peanut plants against white mold (Sclerotium rolfsii Sacc.). The assays carried out by vitro and vivo assays. At first, fungitoxicity suppression oxalic acid diffusion (SOAD) bioassays performed evaluate the mycelial growth fungus. Then, validation greenhouse, involving inoculation fungus seeds further plant treatments with essential oil. Four isolates S. tested different oil concentrations. Cymbopogon martinii at 300 ppm...

The objective of this work was to accomplish the isolation, molecular identification and characterizing physiology causal agent algal spot in mango trees. For purpose, pathogen growth assessed different culture media, with subsequent observation measurements filamentous cells. made using mycelium obtained from leaf lesions pure algae colonies grown medium. Descriptions based on DNA sequencing indicated that is Cephaleuros virescens. must be isolated primarily liquid medium for further...

The fungus Trichoderma spp. is known due to its versatility for promoting crop growth and grain yield, improving the nutrient absorption increasing yield. objective of this work was evaluate commercial strains an organomineral fertilizer in early promotion yield wheat plants. Thus, seeds cv. BRS 264 were treated with 2 mL a suspension (2.5 × 108 conidia mL-1 per 100 g seed) submitted laboratory until 8 days after sowing (DAS). In greenhouse experiment, sown L pot, which received 4.0 pot....

Papaya (Carica papaya L.) is susceptible to various production diseases, therefore, studies are needed reduce them.Papaya fruit rot (Phytophthora palmivora (Butler) Butler) one of the fungal diseases present in producing regions (Bahia and Espírito Santo) Brazil.This study aimed evaluate variability aggressiveness virulence Phytophthora that influence severity postharvest vitro vivo.The following mycelial growth characteristics were evaluated: (a) speed index (MGSI); (b) potential (%MGSI);...

Papaya (Carica papaya) is one of the most cultivated and consumed tropical fruit worldwide.Its production might be limited by preharvest postharvest diseases.The rot caused Phytophthora palmivora important diseases papaya in Brazil.The control these usually made with fungicide applications.Therefore, studies concerning biocontrol generate data that may reduce environmental impacts pesticides.Thus, biological Trichoderma an alternative to use fungicides for P. fruit.Four antagonists...

In Brazil and in other countries of the world, studies have been conducted to identify Listeria monocytogenes cattle meat that is preferably consumed undercooked and, when marketed without meeting strict phytosanitary requirements, may cause outbreaks listeriosis. such, foodborne outbreaks, methods used for detection pathogen efficiency associated with them are crucial proper assessment. this study, we techniques biochemical molecular identification L. isolated from 30 samples fresh beef,...

The increasing world production of biodiesel has resulted in an accumulation crude glycerol as the major byproduct.This could be used carbon source for industrial microbiology, with economic and environmental advantages industry.We explored Atlantic Rainforest soil sample to search glycerol-degrading microorganisms.Microcosms this were established containing minimal medium + 8% (w/w); biological activity was measured by respirometry.High CO 2 levels found some microcosms, suggesting...

Basil (Ocimum basilicum) belongs to the Lamiaceae family and is widely distributed in tropical areas.This herb has medicinal properties a source of essential oils (Burgess et al., 1986.http://fshs

Enterobacter and Bacillus are common endophytes in many plants. Endophytic cloacae 344 amyloliquefaciens 629 from cacao had their colonization patterns assessed different plants organs. The 344's all was ~12x higher than those observed for 629. CFU countings were 16 3 times lower 629, respectively, non-sterile sterile conditions. results suggested that is a better endophytic colonizer but this seems competitor 344. Indigenous fungi interfered with the levels of both strains Plant species,...

O objetivo dessa pesquisa foi verificar o efeito de produtos alternativos em mangas inoculadas com Lasiodiplodia theobromae e a influência desses sobre crescimento micelial do fitopatógeno. Mangas foram tratadas fosfato potássio (FP) (50, 100 150), ácido hidroxidobenzóico (AH) (5, 10 15), cloreto cálcio (CC) (0,13, 0,26 0,39) (em milimolar), Luz ultravioleta (LUV) (10; 20 30 min.), extratos alho (EA), melão-de-são-caetano (EM), casca manga (ECM) (25, 50 75%) água (testemunha). Inoculou-se...

A mangicultura é uma das principais atividades do agronegócio frutícola Brasil, apresentando desempenho crescente nos últimos anos. As podridões pós-colheita são responsáveis por grande parte perdas de frutas armazenadas, destacando-se sobre mangas os fungos Lasiodiplodia theobromae e Fusicoccum parvum. Este trabalho teve como objetivo comparar isolados espécies L. F. parvum, quanto à agressividade, tipo inóculo, local inoculação estádio amadurecimento na cv. Tommy Atkins. O teste...

The papaya fruit rot (Phytophthora palmivora) is responsible for significant losses.To reduce diseases, especially in areas with climate and humidity favorable to pathogens, are adopted chemical methods, which sometimes increase the cost of production cause severe environmental impacts.Alternatively, there products, such as, phosphites potassium acibenzolar-S-methyl (ASM) that might be efficient on disease control less aggressive environment.Phosphites K ASM were evaluated this study...

The objective of this work was to accomplish the micromorphological characterization causal agent algal spot in ‘Amrapali’ mango trees. Therefore, leaves exhibiting symptoms spots were used for making microscope slides, on which pathogen somatic and reproductive structures measured. dimensions obtained sporangiophores sporangia 245.5-545.6 × 10.5-19.1 μm 21.4-34.2 16.3-24.7 μm, respectively. Descriptions based micromorphology indicated that algae...

The forest species are frequent targets of diseases. In this context, the plant-parasitic algae comprise a separate group in process, including genus Cephaleuros, which attacks mahogany cultivars. objective work was to accomplish molecular and morphological characterization causal agent spots occurring Brazilian (Swietenia macrophylla). Somatic reproductive structures contained lesions on leaves had DNA extracted amplified by primers 18SHf 18SLr rRNA nuclear gene 18S. Then, amplicons were...

A podridão de frutos causada por Phytophthora palmivora é uma das principais doenças pós-colheita que acomete o mamão e outras culturas relevância econômica. O objetivo deste trabalho foi avaliar a influência da temperatura (15, 20, 25, 30 35 ºC), do período molhamento (0, 12, 24, 36, 48, 60, 72 h) concentração inóculo (10¹ 10(7) zoósporos mL-1) quatro isolados P. provenientes sul Bahia (PP04 PP20) norte Espírito Santo (PP15 PP16) sobre severidade podridão-do-fruto em cv. Sunrise Solo na...

The low volume of information related to the interaction Trichoderma fungi with seeds and seedlings represents a limitation forest production, it is important carry out studies focusing on its effect plant germinability formation. aim was evaluate commercial products based spp. in promoting growth Jacaranda mimosifolia. For initial seedling assay, were treated suspension placed germinating paper sheets. At 28 days after sowing (DAS) following evaluations were: percentage germination (PG),...