| 1. | Plants, fungi, and oomycetes serve as natural hosts.
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| 2. | Unlike true fungi, the cell walls of oomycetes contain cellulose and lack chitin.
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| 3. | Despite not being closely related to the fungi, the oomycetes have developed very similar infection strategies.
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| 4. | This relationship is supported by a number of observed differences in the characteristics of oomycetes and fungi.
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| 5. | Oomycetes and fungi have, through convergent evolution, developed similar morphology and occupy similar ecological niches.
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| 6. | Most endophytes known are bacteria or fungi, although there are also some endophytic algae and oomycetes.
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| 7. | In contrast, most other oomycetes do not have a vesicle and the zoospores form in the sporangia.
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| 8. | Oomycetes are capable of using effector proteins to turn off a plant's defenses in its infection process.
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| 9. | It is also active against certain oomycetes, such as Pythium, making it useful for controlling damping off.
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| 10. | Nonetheless, studies of the oomycetes and myxomycetes are still often included in mycology textbooks and primary research literature.
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