Ecology and Thermal Inactivation of Microbes in and on Interplanetary Space Vehicle Components Sixth Quarterly Report, Jul. 1 - Sep. 30, 1966

Ecology and thermal inactivation of microbes in and on interplanetary space vehicle component

Ecology and thermal inactivation of microbes in and on interplanetary space vehicle components Quarterly progress report, 1 Jan. - 31 Mar. 1968

Dry heat resistance of Bacillus spores lyophilized on filter paper, dry heat destruction of spores embedded in epoxy plastic, and rehydration and water effects on spore

Ecology and thermal inactivation of microbes in and on interplanetary space vehicle components first quarterly progress report, 1 apr. - 30 jun. 1965

Ecology and thermal inactivation of microbes in and on interplanetary space vehicle components - microbiological procedures for disintegrating solids to small particle

Ecology and thermal inactivation of microbes in and on interplanetary space vehicle components Quarterly progress report, Jul. 1 - Sep. 30, 1968

Dry heat inactivation of bacterial spores and influence of spore moisture content on z values as related to spacecraft sanitatio

Ecology and thermal inactivation of microbes in and on interplanetary space vehicle components Fifth quarterly progress report, Apr. 1 - Jun. 30, 1966

Dry heat resistance of bacilus globigii spores encapsulated in lucite and dried on paper strips for spacecraft contamination experimen

Ecology and thermal inactivation of microbes in and on interplanetary space vehicle components Quarterly progress report, Oct. 1 - Dec. 31, 1967

Dry heat resistance measurements of Bacillus subtilis var. Niger in and on various material

Impactos das mudanças climáticas sobre a distribuição espacial da podridão cinzenta em videira no Brasil.

Resumo: A podridão cinzenta, causada pelo fungo Botryotinia fuckeliana (Botrytis cinerea), existente em praticamente todos os vinhedos do mundo, causa sérias reduções na qualidade e na quantidade de uva produzida. O estudo teve como objetivo avaliar os impactos das mudanças climáticas na favorabilidade de ocorrência da podridão cinzenta da videira no Brasil. Foram utilizadas informações de temperatura média e período de molhamento foliar do período de referência (1961 ? 1990) e do futuro (2011 ? 2040, 2041 ? 2070 e 2071 ? 2100) para o Brasil, dos cenários A2 e B1, organizadas no banco de dados em Sistema de Informações Geográficas (SIG) Idrisi 32. A favorabilidade foi obtida aplicando-se equações lógicas, de acordo com as condições e restrições de período de molhamento foliar e temperatura média, resultando em mapas de distribuição espacial da podridão cinzenta no Brasil. De modo geral, é esperado um quadro positivo para o futuro, pois as áreas onde a condição para o desenvolvimento da doença era muito favorável diminuem, e as áreas de condição desfavorável apresentam um aumento principalmente durante o inverno. Abstract; The gray mold, caused by the fungus Botryotinia fuckeliana (Botrytis cinerea), which exists in almost all vineyards in the world, causes serious reductions in quality and quantity of grapes produced. The study aimed to evaluate the impacts of climate change on the favorability of occurrence of gray rot of grapevine in Brazil. Information was collected from average temperature and leaf wetness of the reference period (1961 - 1990) and future (2011 - 2040, 2041 - 2070 and 2071 - 2100) for Brazil, organized in the database in a Geographic Information System (GIS) Idrisi 32. The favorability was obtained by applying logic equations, according to the conditions and restrictions of leaf wetness and average temperature, resulting in maps of spatial distribution of gray mold in Brazil. In general, it can be expected a positive picture for the future, because the areas where the condition for the development of the disease was very favorable decreased, and the areas of unfavorable condition showed an increase mainly during the winter

Infection by Xanthomonas campestris pv.viticola under temperature increase and carbon dioxide concentrations.

The experiments were carried out under controlled conditions to evaluate the impact of increased temperature and concentration of carbon dioxide on infection of Xanthomonas campestris pv viticola, the causal agent of bacterial canker in Vine seedlings. It proceeded the evaluation of the following epidemiological components: incubation period (PI), severity (SEV) and using that data were calculated the area under the disease progress curve (AUDPC). It used grape seedlings (Italia, Crimson Seedless, Sugraone and Selection 8) inoculated with bacterial suspension (108 CFU mL-1). The experimental design was completely randomized, factorial arrangement 4x4 (cultivar x temperature) and 4x2 (cultivar x carbon dioxide concentration) which was carried out twice. The data were subjected to variance analysis. Increasing temperature reduced bacterium?s incubation period with significant differences between genotypes. For Selection 8 and Crimson temperature increase caused enhancement on severity and AUDPC. For Seleção 8 the incubation period (PI) was extended from 7.93 to 30.18 days when the concentration changed from 390 to 770 μmol/mol. The increased CO2 concentration reduced AACPSD and SEV for Sugraone and Selection 8. The results show that the temperature and carbon dioxide (CO2) concentration of the air may have different effects on bacterial canker of grapevine

Impacto do aumento da concentração de dióxido de carbono sobre o oídio da videira.

Segundo o Painel Intergovernamental de Mudanças Climáticas (IPCC), a concentração do dióxido de carbono (CO2) até o final do século chegará aos 550 ppm. Este aumento poderá causar impactos positivos ou negativos sobre a interação planta-patógeno. Na região Nordeste, o oídio da videira causa danos consideráveis à produção por apresentar condições climáticas favoráveis ao desenvolvimento do patógeno durante todo o ano. O trabalho teve como objetivo avaliar o impacto do aumento da concentração de CO2 sobre o oídio da videira. O experimento foi realizado em câmaras de crescimento com controle da concentração de CO2 e temperatura. No experimento mudas de videira da cultivar Crimson foram inoculadas com uma suspensão de 105 esporos/ml por meio de pulverização até o ponto de escorrimento. Para cv. Crimson, o aumento da concentração de CO2 proporcionou um aumento na severidade da doença