It belongs to the class of oomycetes and is often described as a fungal-like organism since they form a heterotrophic mycelium as the true fungi, but in contrast, their cell wall lacks chitin and is composed only of cellulose and glucans.
42.
Slime molds lack a cell wall during the assimilative phase ( except labyrinthulids, which have a wall of scales ), and ingest nutrients by ingestion ( phagocytosis, except labyrinthulids ) rather than absorption ( osmotrophy, as fungi, labyrinthulids, oomycetes and hyphochytrids ).
43.
Although the pathogens and their mechanics differ greatly from those of animals, plants are subject to a wide variety of diseases, including those caused by fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants.
44.
Fungi and other organisms traditionally recognized as fungi, such as oomycetes and myxomycetes ( slime molds ), often are economically and socially important, as some cause diseases of animals ( such as histoplasmosis ) as well as plants ( such as Dutch elm disease and Rice blast ).
45.
There are exceptions : water molds ( oomycetes ) are possibly under Hacrobia or the SAR supergroup ( previously Chromalveolata ), which is still within the Plants + HC + SAR megagroup; while slime molds ( myxogastrids ) are under Amoebozoa ( again, a completely separate branch from both animals and plants ).
46.
Commonly known as "'Philippine downy mildew "', this disease is caused by the species "'Peronosclerospora philippinensis "'of the fungal-like protist class Oomycetes, which also has members such as water molds and " Phytophthora infestans ", which caused the potato blight that led to the Great Irish famine.
47.
Secondary structure models for mt-tmRNAs . ( A ) The two-piece tmRNA in oomycetes and jakobids except J . libera, After removing the intervening sequence ( Int .; dashed ark ) by RNA processing enzymes, the two resulting RNA pieces ( blue and red lines ) remain together through base pairing . ( B ) The standard one-piece tmRNA in J . libera that most likely emerged secondarily through gene rearrangement.
48.
Flagellated lifecycle stages are found in many groups, e . g ., many green algae ( zoospores and male gametes ), bryophytes ( male gametes ), pteridophytes ( male gametes ), some gymnosperms ( cycads and " Ginkgo ", as male gametes ), centric diatoms ( male gametes ), brown algae ( zoospores and gametes ), oomycetes ( assexual zoospores and gametes ), hyphochytrids ( zoospores ), labyrinthulomycetes ( zoospores ), some apicomplexans ( gametes ), some radiolarians ( probably gametes ), foraminiferans ( gametes ), plasmodiophoromycetes ( zoospores and gametes ), myxogastrids ( zoospores ), metazoans ( male gametes ), and chytrid fungi ( zoospores and gametes ).
