Native wild yeasts from forest ecosystems represent an interesting potential source of biocontrol organisms in synergy with disease-tolerant materials. Yeasts have a combination competitive mechanisms and low requirements for their biotechnological application as agents. The current study aimed to increase the number candidates against Fusarium circinatum Diplodia sapinea. enzymatic antagonisti...

in summer of 2009, a disease with symptoms such as stem and trunk cankers were seen in apple golden delicious cultivars trees in west azerbaijan orchards. the disease was in progress due to environmental stresses such as drought and frostbite. bark and vascular system of the tree was darkened at the site of infection and cankers were scaling on main trunk and branches. to isolation of the fungi...

Sphaeropsis sapinea is an opportunistic pathogen causing serious damage to conifers, pre-disposed by adverse environmental conditions or mechanical damage. Three different morphological forms of the fungus have been described and are commonly referred to as the A, B and C morphotypes. Isolates of the different morphotypes have also been separated based on differences in pathogenicity and molecu...

Botryosphaeria dieback is a fungal grapevine trunk disease that currently represents a threat for viticulture worldwide because of the important economical losses due to reduced yield of affected plants and their premature death. Neofusicoccum parvum and Diplodia seriata are among the causal agents. Vine green stems were artificially infected with N. parvum or D. seriata at the onset of three d...

Diplodiosis, a neuromycotoxicosis, principally of cattle, which is characterized by ataxia, paresis and paralysis, was induced in 13 cattle, 16 sheep and 3 goats, by dosing them with Diplodia maydis [= D. zeae (Schw.) Lév.] cultured on sterilized maize seeds. The results of these experiments confirmed the findings of earlier workers that diplodiosis is a mycotoxicosis caused by D. maydis. The i...

Inactivation of Enzymes by Visible Light in the Presence of Riboflavin: Arthur W. Galston and Rosamond S. Baker 485 A New Method for Isolation and Purification of Mammalian Striated Myofibrils: Armin F. Schick and George M. Hass ............ 486 Paleocene and Eocene Strata in the Bearpaw Mountains, Montana: Roland W. Brown and William T. Pecora ...... 487 Sex Differences in Blood Pressure of Do...

Acremonium zeae produces pyrrocidines A and B, which are polyketide-amino acid-derived antibiotics, and is recognized as a seedborne protective endophyte of maize which augments host defenses against microbial pathogens causing seedling blights and stalk rots. Pyrrocidine A displayed significant in vitro activity against Aspergillus flavus and Fusarium verticillioides in assays performed using ...

Forest health monitoring is essential to sustainable management of Pinus radiata D. Don plantations. Conventional survey techniques such as aerial sketch mapping are qualitative and subjective, their effectiveness depending on the skill of the surveyor. In contrast, digital remote sensing has the potential to provide quantitative and objective data on the location, extent, and severity of crown...