Phytopathogenic Fungi
Mostrando 13-24 de 120 artigos, teses e dissertações.
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13. Spilocaea pyracanthae causing leaf scab on loquat in Pakistan
ABSTRACT Loquat is attacked by many phytopathogenic fungi. Among these Spilocaea pyracanthae is of economic importance. The fungus received no attention in Pakistan and some other parts of the world. The current study is focused on the symptomatology of this disease and the etiology of the fungus. During extensive surveys of loquat orchards in 2013 heavy inf
Bragantia. Publicado em: 27/11/2015
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14. Biological control of phytopathogenic fungi by endophytic actinomycetes isolated from maize (Zea mays L.)
This work aimed a survey on the biodiversity of maize endophytic actinomycete, and an evaluation of their potential to control the phytopathogenic fungi. From several regions of São Paulo state, 40 strains were isolated from the healthy maize plants. The identification of these strains, based on morphological properties and fatty acid methyl ester (FAME) pr
Braz. arch. biol. technol.. Publicado em: 2013-12
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15. Occurrence of zearalenone in wheat- and corn-based products commercialized in the State of Paraná, Brazil
The productivity of wheat and corn crops depends on climatic conditions and resistance against phytopathogenic fungi such as those of the genus Fusarium. Some species of this genus produce zearalenone (ZEA), a mycotoxin with hyperestrogenic effects. The objective of this study was to investigate the presence of ZEA in samples of cracked wheat (n = 109), popc
Braz. J. Microbiol.. Publicado em: 16/08/2013
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16. Doenças quiescentes em goiabas: quantificação e controle pós-colheita / Quiescent diseases in guava: quantification and post-harvest control
Post-harvest diseases in guavas may represent damages from 20 to 40%. Environmental conditions and disease management, before or after harvesting, are among their major causes. Standards proposed by the Integrated Production Fruit (IPF) ensure fruit quality and sustainable production with rational use of agrochemicals. Using the white-fleshed variety Kumagai
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/11/2012
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17. O fator de transcrição AtbZIP63 como integrador de sinais energéticos e estresses biótico/abiótico / The transcription factor AtbZIP63 as a integrator of energetic signals and biotic/abiotic stresses
A manutenção do balanço energético em plantas é de crucial importância para a otimização de seu crescimento e desenvolvimento em resposta às condições sempre flutuantes do meio. A energia obtida através da fotossíntese deve ser utilizada parcimoniosamente e dividida entre crescimento, desenvolvimento, armazenamento e respostas a estresses bióti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2012
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18. Sobrevivência de Colletotrichum acutatum, agente causal da podridão floral dos citros, em plantas daninhas / Survival of Colletotrichum acutatum, the causal agent of postbloom fruit drop, on weeds
O Brasil é o maior produtor de laranja do mundo e, embora o cultivo ocorra em todos os estados brasileiros, o Estado de São Paulo é o maior produtor, responsável por 80% da produção nacional. Dentre as doenças que podem limitar a produção dos citros encontra-se a podridão floral do citros (PFC), causada pelo fungo Colletotrichum acutatum J. H. Simm
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/02/2012
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19. Chemical characterization of bioactive compounds from the endophytic fungus Diaporthe helianthi isolated from Luehea divaricata
Endophytic microorganisms, defined as fungi or bacteria that colonize the interior of plants without causing any immediate negative effects or damages, have reciprocal relationships with host plants. In some cases their presence is beneficial to the host due to the synthesis of bioactive compounds, among which several alcohols, esters, ketones and others tha
Braz. J. Microbiol.. Publicado em: 2012-09
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20. Growth rate inhibition of phytopathogenic fungi by characterized chitosans
The inhibitory effects of fifteen chitosans with different degrees of polymerization (DP) and different degrees of acetylation (F A) on the growth rates (GR) of four phytopathogenic fungi (Alternaria alternata, Botrytis cinerea, Penicillium expansum, and Rhizopus stolonifer) were examined using a 96-well microtiter plate and a microplate reader. The minimum
Brazilian Journal of Microbiology. Publicado em: 2012-06
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21. Detection of isometric, dsRNA-containing viral particles in Colletotrichum gloeosporioides isolated from cashew tree
Fungi are disease-causing agents in plants and affect crops of economic importance. One control method is to induce resistance in the host by using biological control with hypovirulent phytopathogenic fungi. Here, we report the detection of a mycovirus in a strain of Colletotrichum gloeosporioides causing anthracnose of cashew tree. The strain C. gloeosporio
Tropical Plant Pathology. Publicado em: 2012-04
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22. Growth and enzymatic responses of phytopathogenic fungi to glucose in culture media and soil
The effect of inoculation of Aspergillus flavus, Fusarium verticillioides, and Penicillium sp. in Dystrophic Red Latosol (DRL) and Eutroferric Red Latosol (ERL) soils with or without glucose on the total carbohydrate content and the dehydrogenase and amylase activities was studied. The fungal growth and spore production in culture medium with and without glu
Brazilian Journal of Microbiology. Publicado em: 2012-03
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23. Sesquiterpenos produzidos pelo fungo endofítico Phomopsis cassiae com atividade antifúngica e inibidora de acetilcolinesterase
SESQUITERPENES PRODUCED BY ENDOPHYTIC FUNGUS Phomopsis cassiae WITH ANTIFUNGAL AND ACETYLCHOLINESTERASE INHIBITION ACTIVITIES. Two new diastereoisomeric cadinanes sesquiterpenes 3,9-dihydroxycalamenene (1-2), along with the known 3-hydroxycalamen-8-one (3) and aristelegone-A (4), were isolated from ethyl acetate extract of Phomopsis cassiae, an endophytic fu
Quím. Nova. Publicado em: 2012
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24. Podridões pós-colheita de morango: etiologia e efeito de produtos alternativos / Postharvest rot in strawberry: etiology and effect of alternatives products
The rot in post-harvest is a major problem in all regions where they cultivate strawberries in the country. Only limited information, regarding the causal agents and management strategies from rot of the field after harvest. Given these facts this study had two objectives: i-identify the pathogens involved in rot, in the post-harvest strawberries and II - st
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011