Leguminous Rusts from Mexico

SOME NEW AND POORLY KNOWN RUSTS (UREDINALES) FROM IRAN

Five species of Puccinia and two of Uromyces making 7 rust-host combinations are reported from Iran. Puccinia leveillei on Geranium sylvaticum, P. libanotidis on Libanotis transcaucasica, P. podospermi on Scorzonera laciniata and Uromyces scrophulariae on Scrophularia umbrosa are reported as new to the flora of Iran. For other three species viz. P. campanulae and P. gaubae on Campanula spp. and...

Isolation and characterization protease enzyme from leguminous seeds

The present study was conducted to isolate and characterize the proteases from seven leguminous seeds: soybean, lentil, black gram, green gram, bengal gram, groundnut and pea bean. We elaborated the easy procedure for isolation of protease from leguminous seeds by using (NH4)2SO4 precipitation. The effect of pH and temperature of protease activity were determined. This study revealed that the p...

Microcyclic rusts of hollyhock (Alcea rosea)

Rust fungi infecting hollyhock and other plants in Malveae are frequently intercepted at ports of entry to the USA, particularly Puccinia malvacearum and P. heterogenea. These two species can be difficult to distinguish and can be further confused with other, less common species of microcyclic rust fungi infecting hollyhock: P. heterospora, P. lobata, P. platyspora, and P. sherardiana. Molecula...

Functional genomic approaches in cereal rusts

Cereal rust fungi are pathogens of major importance to agriculture, threatening cereal production worldwide. Targeted breeding for resistance, based on information from fungal surveys and population structure analyses of virulence, has been effective. Nevertheless, breakdown of resistance occurs frequently and continued efforts are needed to understand how these fungi overcome resistance and to...

Leaves Material Decomposition from Leguminous Trees in an Enriched Fallow