Development of Sporangiophores of Peronospora parasitica (Pers. ex Fr.) Fr.
- 1 July 1968
- journal article
- Published by Oxford University Press (OUP) in Annals of Botany
- Vol. 32 (3) , 623-631
- https://doi.org/10.1093/oxfordjournals.aob.a084236
Abstract
The morphology of developing sporangiophores of Peronospora parasitica from wallflower is described, and morphogenesis may be divided into the following five stages: the sporangiophore primordium, unbranched sporangiophore, branched sporangiophore, spore formation and maturation, and formation of the cross wall. The growth of individual sporangiophores in a humidity chamber was followed under the microscope, and increase in height and increase in volume measured. The greatest increase in volume was during spore formation, when the sporangiophore volume might quadruple within an hour.Keywords
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