albugo reproduces asexually by means of structure which are called germ tubes.
albugo reproduces asexually by means of structure which are called?
germ tubes
like all the other species in its genus, "albugo occidentalis" is an oomycete. the survival structure is an oospore, which is the result of the karyogamy of two haploid gametes (the oogonium and antheridium). the oospore can overwinter in the soil, and in the spring it produces zoospores which will encyst on the surface of spinach leaves in the presence of water and germinate. asexual propagation of "albugo occidentalis" occurs via the production of sporangia on sporangiophores. these sporangia disperse and form zoospores, which complete the asexual cycle by re-infecting or infecting a new spinach leaf. the asexual oomycete can overwinter in spinach debris.
albugo occidentalis
albuginaceae





























albuginaceae is a family of oomycetes.





























section::::genera and species.





























albuginaceae contains the following subtaxa:





























bullet::::- "albugo"





























bullet::::- "albugo candida"





























bullet::::- "albugo capparidis"





























bullet::::- "albugo capparis"





























bullet::::- "albugo caryophyllacearum"





























bullet::::- "albugo chardoni"





























bullet::::- "albugo evolvuli"





























bullet::::- "albugo gomphrenae"





























bullet::::- "albugo hesleri"





























bullet::::- "albugo hohenheimia"





























bullet::::- "albugo ipomoeae-panduratae"





























bullet::::- "albugo laibachii"





























bullet::::- "albugo leimonios"





























bullet::::- "albugo lepidii"





























bullet::::- "albugo lepigoni"





























bullet::::- "albugo mauginii"





























bullet::::- "albugo occidentalis"





























bullet::::- "albugo resedae"





























bullet::::- "albugo rorippae"





























bullet::::- "albugo trianthemae"





























bullet::::- "albugo tropica"





























bullet::::- "pustula"





























bullet::::- "pustula centaurii"





























bullet::::- "pustula helianthicola"





























bullet::::- "pustula junggarensis"





























bullet::::- "pustula obtusata"





























bullet::::- "pustula spinulosa"





























bullet::::- "pustula tragopogonis"





























bullet::::- "wilsoniana"
albuginaceae