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Plant pathology (also phytopathology) is the scientific study of plant diseases caused by pathogens (infectious diseases) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are insects, mites, vertebrate or other pests that affect plant health by consumption of plant tissues. Plant pathology also involves the study of pathogen identification, disease etiology, disease cycles, economic impact, plant disease epidemiology, plant disease resistance, how plant diseases affect humans and animals, pathosystem genetics, and management of plant diseases. The "Disease triangle" is a central concept of plant pathology . It is based on the principle that infectious diseases develop, or do not develop, based on three-way interactions between the host, the pathogen, and environmental conditions. Plant pathogensFrom Wikipedia under the
GNU Free Documentation License  plantpath.caes.uga.edu 756px x 504px | 54.70kB [source page] Entomosporium leaf spot Entomosporuim maculatum syn Fabraea maculata Indian Hawthorne Raphiolepsis umbellata R indica R delacourii Disease Symptoms Symptoms on foliage are distinct circular red lesions with gray centers forming as the lesions expand Dark specks fruiting bodies of the fungus may be visible  plantpath.caes.uga.edu 480px x 720px | 52.80kB [source page] After the disease has been checked then the turf in the infected areas may not fully recover but the benefit of aerifying can be seen here where the turf has survived Colletotrichum sp can be easily identified by the setae black spines produced in the fruiting bodies as well as the distinctive one celled crescent shaped spores These  plantpath.caes.uga.edu 868px x 1024px | 368.90kB [source page] Disease Symptoms Long cigar shaped lesions on leaves light tan in color Scrape surface of lesion or crush a tiny portion of the lesion and observe the spores From Yahoo Image Search: "Plant pathology"  mbreaul1.wordpress.com mbreaul1 Fri, 16 Jul 2010 20:55:13 GM Kathie Hodge, an associate professor of mycology in the Department of . Plant Pathology. and Plant-Microbe Biology at Cornell University, has been studying the benefits of fungi for more than 20 years. Hodge, who is also a taxonomist or ...  gardeningchannel.com chris Wed, 07 Jul 2010 21:59:06 GM Growing Zucchini? There are common diseases you should be aware of. We list them and then offer advice to prevent and treat these diseases, including  helpbiotech.net admin Mon, 17 May 2010 13:24:19 GM Directorate of Extension Education GB Pant University of Agriculture & Technology (GBPUA&T) Pantnagar 263 145 Uttrakhand Subject: From Google Blog Search: "Plant pathology"  philstar.com Sun, 20 Jun 2010 01:44:07 GMT+00:00 Philippine Star The volume was written by Dr. Noemi G. Tangonan, head of the Plant Pathology Research Laboratory of the University of Southern Mindanao-Crops Research ...  marinij.com Fri, 11 Jun 2010 01:24:48 GMT+00:00 Marin Independent-Journal Among those making the visit was Ted Swiecki, a plant pathologist based in Vacaville, who has been helping university researchers monitor the disease's ...  truthabouttrade.org Wed, 02 Jun 2010 04:51:04 GMT+00:00 Truth about Trade & Technology ... wheat-growing belt of South Africa's Western Cape Province in 2007, said Zak Pretorius, professor of plant pathology at University of the Free State. ... Fungus threatens to destroy wheat harvest Business Daily Africa Mutant wheat rust has scientists worried Stock Journal From Google News Search: "Plant pathology" what are the importance of plant pathology? Q. what are the importance of plant pathology? Asked by rootman - Wed Nov 11 05:59:29 2009 - - 1 Answers - 0 Comments A. I am a plant pathologist for a primary industries government department in Australia. My role is extremely important as I am researching better techniques for coping with plant pathogens in the agriculture sector so that yields are increased and chemicals are used in the most effective, sustainable fashion. Sometimes my research reduces the need for some chemicals altogether. I am one of the people responsible for identifying new plant diseases that might have come from overseas and working on ways to eradicate the disease. I also work closely with and advise biosecurity experts on the best ways to reduce the risk of new plant diseases entering the country. Answered by Mike M - Wed Nov 11 06:58:31 2009 what is plant and post harvesting pathology? Q. what is plant and post harvesting pathology? Asked by Asanka Bandara - Sat May 30 13:40:47 2009 - - 1 Answers - 0 Comments physicochemical properties of plant viruses?
Q. in plant pathology Asked by manoj_4953 - Tue Apr 25 11:21:52 2006 - - 1 Answers - 0 Comments A. Plant viruses, like all other viruses, are obligate intracellular parasites that do not have the molecular machinery to replicate without the host. The plant viruses are defined as viruses pathogenic to higher plants. While this article does not intend to list all plant viruses, it discusses some important viruses as well as their uses in plant molecular biology.Most of the virus types that have been discovered infecting plants are single-stranded RNA viruses, and have rod-shaped capsids with protein units arranged in a spiral.One novel characteristic of Plant viruses is that some of the viruses, instead of having a segmented genome packaged into the same particle as happens in animal viruses, some of the plant virus species are… [cont.] Answered by ~tn~ - Tue Apr 25 11:30:04 2006 From Yahoo Answer Search: "Plant pathology" |
