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Propagule

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Title: Propagule  
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Subject: Propagule pressure, False vivipary, Biological dispersal, Soredium, Australian mangroves
Collection: Horticulture and Gardening, Plant Reproduction
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Propagule

In plants (in the form of seeds or spores), fungi (in the form of spores), and bacteria.[1]

In disease biology, pathogens are said to generate infectious propagules, the units that transmit a disease. These can refer to bacteria, viruses, fungi, or protists, and can be contained within host material.[2][3][4] For instance, for influenza, the infectious propagules are carried in droplets of host saliva or mucus that are expelled during coughing or sneezing.

In horticulture, a propagule is any plant material used for the purpose of plant propagation. In asexual reproduction, a propagule may be a woody, semi-hardwood, or softwood cutting, leaf section, or any number of other plant parts. In sexual reproduction, a propagule is a seed or spore. In micropropagation, a type of asexual reproduction, any part of the plant may be used, though it is usually a highly meristematic part such as root and stem ends or buds.[5]

See also

References

  1. ^ T.Y. Chuang and W.H. Ko. 1981. Propagule size: Its relation to population density of microorganisms in soil. Soil Biology and Biochemistry. 13(3).
  2. ^ David H. Ellis and Tania J. Pfeiffer. 1990. Ecology, life cycle, and infectious propagule of Cryptococcus neoformans. The Lancet. 336(8720).
  3. ^ Akira Sasaki and Yoh Iwasa. 1991. Optimal Growth Schedule of Pathogens within a Host: Switching between Lytic and Latent Cycles. Theoretical Population Biology. 39.
  4. ^ Fernando E. Vega, Harry K. Kay. 2012. Insect Pathology. Academic Press.
  5. ^ Hartmann and Kester's Plant Propagation, Seventh Edition.
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