UPTAKE OF SUGARS BY EPICHLOE TYPHINA (PERS. EX FR.) TUL. IN CULTURE AND FROM ITS HOST, AGROSTIS STOLONIFERA L.

Fertilization of Epichloe typhina stromata by mycophagous slugs.

Epichloë typhina, a fungal endophyte of cool season grasses, is heterothallic and an obligate out-crosser. In areas of endemism, its spermatia are moved between stromata of the two opposite mating types through egg-laying activities of Botanophila flies. In western Oregon, where the fungus was inadvertently introduced into seed-production fields of Dactylis glomerata (= orchardgrass, cocksfoot)...

Action Spectrum for Photosporogenesis in Botrytis cinerea Pers. ex Fr.

An action spectrum for photoinduced conidium formation in the fungus Botrytis cinerea Pers. ex Fr. was determined by exposing colonies to monochromatic radiation obtained from a diffraction grating monochromator. Wavelengths longer than 355 nm were ineffective even after exposures of 8 hours at intensities of 4,068 to 8,276 erg per cm(2) per second. Colonies were exposed at 22.5 C from 226 to 3...

Avenacin Production in Creeping Bentgrass (Agrostis stolonifera) and Its Influence on the Host Range of Gaeumannomyces graminis

Establishment of transgenic herbicide-resistant creeping bentgrass (Agrostis stolonifera L.) in nonagronomic habitats.

Concerns about genetically modified (GM) crops include transgene flow to compatible wild species and unintended ecological consequences of potential transgene introgression. However, there has been little empirical documentation of establishment and distribution of transgenic plants in wild populations. We present herein the first evidence for escape of transgenes into wild plant populations wi...

Identification of Lacrymaria velutina (Pers. Ex Fr.) Konrad & Maubl. from Micheon-myeon, Jinju-city, Korea

We identified Lacrymaria velutina of the Coprinaceae in Korea. The unusually large and sturdy fruiting body, fibrillose to fibrillose-scaly cap and stalk without a volva with an obscure superior hairy ring zone or hairy annulus, and blackish brown, warted spores distinguished this species from closely related Psathyrella species. An illustrated account of the microscopic traits is presented. Fr...