Light and chemical components of the host root exudate can induce hyphal growth and branching of arbuscular mycorrhizal fungi. Compounds that induce the same morphogenetic or biochemical response as light are referred to as photo-mimetic compounds (PCs). This is the first report of a synergistic response by Gigaspora gigantea, an arbuscular mycorrhizal fungus, to blue light and naturally occurr...

Water supply and day length were varied in cold hardiness studies of red osier dogwood plants (Cornus stolonifera Michx.). The frost killing temperature, the content and freezing of stem cortical tissue water along with soil moisture content and tension were evaluated. Seven days of water stress in long and short day photoperiod regimes caused a rapid decrease in soil moisture content and plant...

Convincing evidence has accumulated that unintended transgene escape occurs in oilseed rape, maize, cotton and creeping bentgrass. The escaped transgenes are found in variant cultivars, in wild type plants as well as in hybrids of sexually compatible species. The fact that in some cases stacked events are present that have not been planted commercially, implies unintended recombination of trans...