By P. Narayanasamy
This paintings offers info at the detection, identity, and differentiation of all microbial plant pathogens - providing smooth protocols for speedy prognosis of ailments according to organic, actual, chemical and molecular houses. It includes equipment for the choice of disease-free seeds and vegetatively propagated planting fabrics and quarantine recommendations for screening newly brought plant fabrics.
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Additional info for Plant Pathogen-Detection & Disease Diagnosis 2nd ed. (Books in Soils, Plants, and the Environment)
Nigrifluens E. salicis E. stewartii E. tracheiphila Pantoea ananas Pantoea (ϭErwinia) stewartii subsp. , tulips Dianthus caryophyllus Onions Tulips Rice Rice Banana, casava, cotton and sweet potato Tomato Tomato Maize Potato Bermuda grass, maize Sugarcane Sugarbeet French bean Poinsettia Black alder (Alnus glutinosa), Italian alder (A. 1 Continued Bacterial pathogen Pseudomonas caricapapayae P. cichorii P. fuscovaginae P. marginalis P. marginalis pv. alfalfae P. marginalis pv. marginalis P. savastanoi pv.
These symptoms are distinct and indicate that involvement of fungal pathogens (Figs. 4). However, in some cases, either the incubation period required by the fungal pathogen may be very long or the symptoms induced may be indistinct. In such cases the use of indicator plants may be useful. , 1996). The fungi produce specialized asexual spore forms such as sporangia or conidia either on the surface of the infected tissues or within such tissues in sporeforming structures, such as sorus, acervulus, pycnidia, or sporodochia.
Among about 100,000 fungal species known to exist, more than 8000 species are pathogenic to plants, and about 50 species cause disease in humans and animals. The fungal body (thallus) consists of numerous filamentous hyphae weaving into a mycelium. The hyphae may or may not have cross-walls (septa). The hyphal walls may be uniform in thickness or irregularly thickened, tapering into thinner or broader portions. The fungal cells delimited by well-defined cell walls contain one or two nuclei per cell.