Bud exudates from 9 poplars showing a range o f resistance to bacterial canker and poplar rust were analyzed by gas chromatography-mass spectrometry and the components o f the bud exudate identified. Those compounds previously reported in the literature to have notable antimicrobial activity were listed and the quantities present in the bud exudates o f the speci­ mens analyzed were compared. N...

IT is only within the last few years that students of the rusts and ascomyeetes have obtained definite information about the processes actually involved in fertilization. Some of my associates have suggested that in view of this added knowledge it might be well to bring together in review on this program available information bearing on sex, maleness and femaleness as related particularly to he...

medicinal plants are infected by fungal diseases. a four years survey indicated that, there are various fungal infections in roots and shoots of several medicinal plants that grown in isfahan. lavender (lavandula angustifolia), rosemarry (rosmarinus officinalis) and viper’s bugloss (borago officinalis) plants were infected by fusarium oxysporum and f. solani on roots, showing wilting and eventu...

the entomopathogenic fungus, verticillium epiphytum was isolated from the infected specimens of thrips tabaci collected in mashhad in april 2011. the fungus has been previously reported from rusts and sugar beet cyst nematode heterodera schachtii. this is the first record of v. epiphytum on t. tabaci in the world.