7 Αποτελέσματα
Contact of certain sawfly larvae with predators frequently elicits an easy bleeding behavior involving local disruption of the integument and release of hemolymph droplets. The efficacy of this putative antipredator defense was investigated in the turnip sawfly, Athalia rosae, by using common garden
Asebotoxin III (ATX-III), a diterpenoid isolated from the leaves of Asebi, Pieris japonica, was found to produce hemorrhage into the lungs when the toxin in a dose of 2-8 micrograms was injected into the lateral ventricle of guinea pigs under urethane anesthesia (0.8 g/kg, i.p.). The occurrence of
The turnip sawfly, Athalia rosae Linnaeus, is a pest on cruciferous crops. Larvae sequester secondary plant compounds, namely glucosinolates, in their haemolymph. When attacked, their integument is easily disrupted and a droplet of haemolymph is exuded ('easy bleeding'). This has been shown to be an
The significance of filopodial elongation of granular phagocytes of Bombyx mori in recognition of foreignness was examined using a larval epidermis obtained from the same individual of B.mori as a self material and intra- or interspecific epidermis and glass as non-self ones. Incubation of cells on
A homothallic, papillate Phytophthora species causing foliar and fruit blight of noni (Morinda citrifolia var. citrifolia) in Hawaii was identified. The asexual phase of this species is characterized by the production of umbellate sporangiophores and papillate sporangia that are ellipsoid and
Phytophthora ramorum is an oomycete plant pathogen classified in the kingdom Stramenopila. P. ramorum is the causal agent of sudden oak death on coast live oak and tanoak as well as ramorum blight on woody ornamental and forest understorey plants. It causes stem cankers on trees, and leaf blight or
Phytophthora ramorum causes bleeding cankers of trunks of trees native to the west coast of the United States (i.e., Quercus kelloggii, Q. parvula var. shrevei, and Lithocarpus densiflorus). In the United Kingdom so far, bleeding cankers caused by inner bark infections have been found on Aesculus