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Diseases and Management of Crops under Protected Cultivation

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(<strong>Diseases</strong> <strong>and</strong> <strong>Management</strong> <strong>of</strong> <strong>Crops</strong> <strong>under</strong> <strong>Protected</strong> <strong>Cultivation</strong>)<br />

educated guess as to the bacteria with which you are dealing. Describe size if a scale is given,<br />

shape (coccus, rod, pleomorphic) <strong>and</strong> where bacteria are located (i.e. At microvillar tips, closelyadhered<br />

to cell membrane / wall, intracytoplasmic <strong>and</strong> if so, within phagolysosome or free).<br />

Pseudomonas putida <strong>under</strong> solute stress Pseudomonas putida with no stress<br />

Examples:<br />

Bordetella- bacteria enmeshed in tracheal cilia; animal affected may be dog, turkey,<br />

etc.Car bacillus- bacteria enmeshed in cilia <strong>of</strong> airway, but more likely in a rat.<br />

These Helicobacter pylori Bacteria (formerly named Campylobacter) on human stomach<br />

epithelial cells can cause certain types <strong>of</strong> stomach ulcers <strong>and</strong> gastritis. Peptic ulcers are holes or<br />

sores in the stomach or duodenum <strong>and</strong> most are caused by this pathogen. With antibiotics, the<br />

infection can be cured in a few weeks. TEM X40,000<br />

Protozoal<br />

Be familiar with some <strong>of</strong> the terminology used in describing protozoa, such as conoid,<br />

micronemes <strong>and</strong> rhoptries. Note whether zoites are contained within a parasitophorous vacuole or<br />

free in the cytoplasm. If in a bradycyst, is wall thick or thin Some familiar examples include:<br />

Giardia- elongated, attached along microvillar surface<br />

Cryptosporidium- trophozoites attached to apical cell surface by feeder organelle, microvilli<br />

are effaced only at the site <strong>of</strong> attachment. The trophozoites develop into schizonts.<br />

Journals relating to Electron Microscopy<br />

Journal <strong>of</strong> Electron Microscopy (Japanese)<br />

Journal <strong>of</strong> Electron Microscopy Techniques<br />

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