Significant morphological differences were found in zoosporangia and sporangiophores morphology.
Nachaat Sakr 2012, 'Pathogenic, morphological and genetic diversity in Plasmopara halstedii, the causalagent of sunflower downy mildew - doi: 10.4025/actasciagron.v35i1.15722', Acta Scientiarum: Agronomyhttp://186.233.154.254/ojs/index.php/ActaSciAgron/article/view/15722. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Early zoosporangia were obtained from 2nd to 4th weeks.
Rapeeporn Ruangchuay, Sofhanee Dahamat, Anong Chirapat, Masahiro Notoya 2012, 'Effects of culture conditions on the growth and reproduction of Gut Weed, Ulva intestinalisLinnaeus (Ulvales, Chlorophyta)', Songklanakarin Journal of Science and Technology (SJST)http://rdo.psu.ac.th/sjstweb/journal/34-5/0475-3395-34-5-501-508.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In the leaf discs the hyphae proliferated and abundant formation of zoosporangia was observed.
Govers Francine, Bouwmeester Klaas 2009, 'A novel method for efficient and abundant production of Phytophthora brassicae zoosporeson Brussels sprout leaf discs', BMC Plant Biologyhttp://www.biomedcentral.com/1471-2229/9/111. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)