Two novel yeast species, Candida aechmeae sp. nov. and Candida vrieseae sp. nov., were isolated from bromeliads in Itapuã Park, Rio Grande do Sul, Brazil. These species are genetically isolated from all other currently recognized ascomycetous yeasts based on their sequence divergence in the D1/D2 domain of the LSU rRNA gene. C. aechmeae sp. nov. is phylogenetically close to Candida ubatubensis,...

UNLABELLED Indoor fungi cause damage in houses and are a potential threat to human health. Indoor fungal growth requires water, for which the terms water activity (aw) and relative humidity (RH) are used. The ability of the fungi Aspergillus niger, Cladosporium halotolerans, and Penicillium rubens at different developmental stages to survive changes in aw dynamics was studied. Fungi grown on me...

The conversion of grape must into wine involves the development and succession of yeast populations differing in species composition. The initial population is formed by vineyard strains which are washed into the must from the crushed grapes and then completed with yeasts coming from the cellar environment. As the origin and natural habitat of the vineyard yeasts are not fully understood, this ...

Bacillus thuringiensis (Bt) is a Gram-positive soil bacterium, has been isolated from a range of habitats including soil, grain dust, phylloplane and dead insects. It is characterized by its ability to produce crystalline inclusions called ‘’endotoxin proteins” during sporulation. The crystalline inclusions (Cry and Cyt proteins), along with the spores, have a great potential to control a numbe...

Alcaligenes xylosoxidans denitrificans (Axd) is closely associated with Homalodisca coagulata, the glassy-winged sharpshooter (GWSS), and xylem fluid of host plants. The bacterium has long been characterized as a nitrogen and hydrogen recycler in nature, and was recently recognized as an important decomposer of cyanogenic glycosides in plant material (Ingvorsen et al. 1991). Few studies exist t...

R public concerns over the transgenic (genetically modified) plants and nontarget impacts such as those from Bttoxin expressing corn pollen on the monarch butterfly populations have escalated, despite good pest management intentions and good science (1–9). Plant resistance to insect pests has evolved naturally over many millions of years and involves (i) both constitutive and inducible phytoche...

Bacillus thuringiensis (Bt) is a ubiquitous soil bacterium that produces an array of insecticidal crystal proteins with varied specificities. Recently a lot of effort is being made to collect, characterize, utilize novel and more potent strains of Bt. The crystal proteins (Cry proteins) produced by Bt are important in agricultural, horticultural and public health pest management. In addition to...

Zelikovitch, N., Eyal, Z., and Kashman, Y. 1992. Isolation, purification, and biological activity of an inhibitor from Septoria tritici. Phytopathology 82:275-278. Methyl-3-indole carboxylate (3-indole carboxylic acid methyl ester Complete inhibition of S. triticiisolates ISR398 and ISR8036 was recorded [ICA. Me]) was identified in liquid cultures of Septoria tritici. For physioat 0.08 mg/ml of...