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Related to planula: scyphistoma, Colloblast


a larval coelenterate.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


, pl.


(plan'yū-lă, -lē),
Name given by Lankester to a coelenterate embryo when it consists of the two primary germ layers only, the ectoderm and endoderm.
[L. dim. of planum, flat surface]
Farlex Partner Medical Dictionary © Farlex 2012


the ciliated larva of coelenterates, which lacks a body cavity.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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Las planulas liberadas son capaces de asentarse enseguida que son liberadas y pueden colonizar areas cercanas a las de los progenitores.
The fertilized egg develops into a planula that is released into the water when mature.
These organisms are important because they are common on the wall and are also interesting because much work has been done with Spirorbis setigers (Knight-Jones 1951), bryozoan cyphonautes larvae (Keough 1984), and crawling Alcyonium planula larvae (Sebens 1983).
The relationship between polyp-level reproductive variables (i.e., the number per polyp and volume of eggs, testes, and planula) and colony size was determined using a single multivariate regression analysis for each species (Finn 1974:110).
That said, planula larvae themselves are short-lived in A.
An estimation of the power of the seven loci to differentiate unique genotypes was done in two ways, both based on genotypic data from the CI population in which each colony was assumed to be the result of settlement of sexually produced planula larvae and therefore genetically unique.
Night irradiance and synchronization of lunar release of planula larvae in the reef coral Pocillopora damieornis.
astreoides planula larvae significantly increased, relative to uninoculated culture medium (MB) controls (P = 0.018, Fig.
It is possible that they are expressed during a narrow period of development (e.g., in the embryo or in the planula larva, neither of which were used as a source of RNA here), or that they are expressed by stressed or wounded animals but not in healthy polyps, or even that alternative primer pairs would prove successful in initiating the PCR.
The planula larva of Pocillopora damicomis: lunar periodicity of swarming and substratum selection behavior.
An update on modes and timing of gamete and planula release in Hawaiian scleractinian corals with implications for conservation and management.