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Photorhabdus
''Photorhabdus'' is a genus of bioluminescent, gram-negative bacilli which lives symbiotically within entomopathogenic nematodes, hence the name ''photo'' (which means light producing) and ''rhabdus'' (rod shape). ''Photorhabdus'' is known to be pathogenic to a wide range of insects and has been used as biopesticide in agriculture. Life cycle ''Photorhabdus'' species facilitate the reproduction of entomopathogenic nematodes by infecting and killing susceptible insect larvae. Entomopathogenic nematodes are normally found in soil. Nematodes infect larval hosts by piercing the larval cuticle. When the nematode enters an insect larvae, ''Photorhabdus'' species are released by the nematodes and will produce a range of toxins, killing the host within 48 hours. ''Photorhabdus'' species feed on the cadaver of the insect and the process converts the cadaver into a nutrient source for the nematode. Mature nematodes leave the depleted body of the insect and search for new hosts to infect. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photorhabdus Asymbiotica
''Photorhabdus'' is a genus of bioluminescent, gram-negative bacilli which lives symbiotically within entomopathogenic nematodes, hence the name ''photo'' (which means light producing) and ''rhabdus'' (rod shape). ''Photorhabdus'' is known to be pathogenic to a wide range of insects and has been used as biopesticide in agriculture. Life cycle ''Photorhabdus'' species facilitate the reproduction of entomopathogenic nematodes by infecting and killing susceptible insect larvae. Entomopathogenic nematodes are normally found in soil. Nematodes infect larval hosts by piercing the larval cuticle. When the nematode enters an insect larvae, ''Photorhabdus'' species are released by the nematodes and will produce a range of toxins, killing the host within 48 hours. ''Photorhabdus'' species feed on the cadaver of the insect and the process converts the cadaver into a nutrient source for the nematode. Mature nematodes leave the depleted body of the insect and search for new hosts to infect. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photorhabdus Luminescens
''Photorhabdus luminescens'' (previously called ''Xenorhabdus luminescens'') is a Gammaproteobacterium of the family Morganellaceae, and is a lethal pathogen of insects. It lives in the gut of an entomopathogenic nematode of the family Heterorhabditidae. When the nematode infects an insect, ''P. luminescens'' is released into the blood stream and rapidly kills the insect host (within 48 hours) by producing toxins, such as the high molecular weight insecticidal protein complex Tca. ''P. luminescens'' also produces a proteic toxin through the expression of a single gene called ''makes caterpillars floppy'' (mcf). It also secretes enzymes which break down the body of the infected insect and bioconvert it into nutrients which can be used by both nematode and bacteria. In this way, both organisms gain enough nutrients to replicate (or reproduce in the case of the nematode) several times. The bacteria enter the nematode progeny as they develop. 3,5-Dihydroxy-4-isopropyl-trans-stilb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photorhabdus Temperata
''Photorhabdus temperata'' is a species of bacteria. It has been divided into 6 subspecies. It is pathogenic to certain insects. References Further reading * * * * External linksLPSN Bacteria described in 1999 {{gammaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morganellaceae
The Morganellaceae are a family of Gram-negative bacteria that include some important human pathogens formerly classified as Enterobacteriaceae. This family is a member of the order Enterobacterales in the class Gammaproteobacteria of the phylum Pseudomonadota. Genera in this family include the type genus '' Morganella'', along with '' Arsenophonus, Cosenzaea, Moellerella, Photorhabdus, Proteus, Providencia'' and ''Xenorhabdus''. The name ''Morganellaceae'' is derived from the Latin term ''Morganella'', referring the type genus of the family and the suffix "-aceae", an ending used to denote a family. Together, ''Morganellaceae'' refers to a family whose nomenclatural type is the genus ''Morganella''. Human pathogens A number of Morganellaceae bacterial species are opportunistic human pathogens, including ''Proteus'', '' Providencia'', and occasionally '' Morganella'' in nosocomial settings. ''Proteus'' Three ''Proteus'' species '' P. vulgaris'', '' P. mirabilis'', and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benvitimod
Tapinarof, also known as benvitimod and sold under the brand name Vtama, is a medication used for the treatment of plaque psoriasis. The medication is applied to the skin. Besides its use in medicine, tapinarof is a naturally occurring compound found in bacterial symbionts of nematodes which has antibiotic properties. The medication acts as an aryl hydrocarbon receptor agonist. Tapinarof was approved for medical use in the United States in May 2022. Medical uses Tapinarof is indicated for the treatment of plaque psoriasis in adults. Society and culture Names Tapinarof is the International Nonproprietary Name (INN). Natural occurrence Tapinarof, also known as benvitimod, is a bacterial stilbenoid produced in ''Photorhabdus'' bacterial symbionts of ''Heterorhabditis'' nematodes. It is a product of an alternative ketosynthase-directed stilbenoid biosynthesis pathway. It is derived from the condensation of two β-ketoacyl thioesters. It is produced by the ''Photorhabdus lumi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3,5-Dihydroxy-4-isopropyl-trans-stilbene
Tapinarof, also known as benvitimod and sold under the brand name Vtama, is a medication used for the treatment of plaque psoriasis. The medication is applied to the skin. Besides its use in medicine, tapinarof is a naturally occurring compound found in bacterial symbionts of nematodes which has antibiotic properties. The medication acts as an aryl hydrocarbon receptor agonist. Tapinarof was approved for medical use in the United States in May 2022. Medical uses Tapinarof is indicated for the treatment of plaque psoriasis in adults. Society and culture Names Tapinarof is the International Nonproprietary Name (INN). Natural occurrence Tapinarof, also known as benvitimod, is a bacterial stilbenoid produced in '' Photorhabdus'' bacterial symbionts of ''Heterorhabditis'' nematodes. It is a product of an alternative ketosynthase-directed stilbenoid biosynthesis pathway. It is derived from the condensation of two β-ketoacyl thioesters. It is produced by the '' Photorhabdus lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomopathogenic Nematode (Heterorhabditis Bacteriophora ) Poinar, 1975
Entomopathogenic nematodes (EPN) are a group of nematodes (thread worms), that cause death to insects. The term ''entomopathogenic'' has a Greek origin, with ''entomon'', meaning ''insect'', and ''pathogenic'', which means ''causing disease''. They are animals that occupy a bio control middle ground between microbial pathogens and predator/parasitoids. Although many other parasitic thread worms cause diseases in living organisms (sterilizing or otherwise debilitating their host), entomopathogenic nematodes are specific in only infecting insects. Entomopathogenic nematodes (EPNs) live parasitically inside the infected insect host, and so they are termed as ''endoparasitic''. They infect many different types of insects living in the soil like the larval forms of moths, butterflies, flies and beetles as well as adult forms of beetles, grasshoppers and crickets. EPNs have been found in all over the world and a range of ecologically diverse habitats. They are highly diverse, complex and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomopathogenic Nematode
Entomopathogenic nematodes (EPN) are a group of nematodes (thread worms), that cause death to insects. The term ''entomopathogenic'' has a Greek origin, with ''entomon'', meaning ''insect'', and '' pathogenic'', which means ''causing disease''. They are animals that occupy a bio control middle ground between microbial pathogens and predator/parasitoids, and are habitually grouped with pathogens, most likely because of their symbiotic relationship with bacteria. Although many other parasitic thread worms cause diseases in living organisms (sterilizing or otherwise debilitating their host), entomopathogenic nematodes, are specific in only infecting insects. Entomopathogenic nematodes (EPNs) live parasitically inside the infected insect host, and so they are termed as ''endoparasitic''. They infect many different types of insects living in the soil like the larval forms of moths, butterflies, flies and beetles as well as adult forms of beetles, grasshoppers and crickets. EPNs have b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterorhabditis
''Heterorhabditis'' is a genus of nematodes belonging to the order Rhabditida. All species of this genus are obligate parasites of insects, and some are used as biological control agents for the control of pest insects. ''Heterorhabditis'' nematodes are hosts for the '' Photorhabdus'' bacterial symbiont. Species The recognized species in this genus are: * '' Heterorhabditis amazonensis'' Andaló, Nguyen & Moino, 2007 * ''Heterorhabditis bacteriophora'' Poinar, 1976 * '' Heterorhabditis baujardi'' Phan, Subbotin, Nguyen & Moens, 2003 * '' Heterorhabditis downesi'' Stock, Griffin & Burnell, 2002 * '' Heterorhabditis floridensis'' Nguyen, Gozel, Koppenhöfer & Adams, 2006 * '' Heterorhabditis georgiana'' Nguyen, Shapiro-Ilan and Mbata, 2008 * '' Heterorhabditis heliothidis'' (Khan, Brooks & Hirschmann, 1976) * '' Heterorhabditis indica'' Poinar, Karunakar & David, 1992 * '' Heterorhabditis marelatus'' Liu & Berry, 1996 * ''Heterorhabditis megidis'' Poinar, Jackson & Klein, 1987 * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enterobacterales
Enterobacterales is an order of Gram-negative, non-spore forming, facultatively anaerobic, rod-shaped bacteria with the class Gammaproteobacteria. The type genus of this order is ''Enterobacter.'' The name Enterobacterales is derived from the Latin term ''Enterobacter'', referring the type genus of the order and the suffix "-ales", an ending used to denote an order. Together, Enterobacterales refers to an order whose nomenclatural type is the genus ''Enterobacter''. Historical Identification and Systematics Enterobacterales was proposed in 2005 under the name "Enterobacteriales". However, the name "Enterobacteriales" was not validated according to the rules of the ''International Code of Nomenclature of Prokaryotes,'' thus it lacked standing in nomenclature, so the name was written in parentheses. "Enterobacteriales" was a monotypic order, containing only the family '' Enterobacteriaceae'', and shared its type genus ''Escherichia''.NCBEnterobacteralesaccessed 9 Mar 2013 The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostrinia Furnacalis
''Ostrinia furnacalis'' is a species of moth in the family Crambidae, the grass moths. It was described by Achille Guenée in 1854 and is known by the common name Asian corn borer since this species is found in Asia and feeds mainly on corn crop. The moth is found from China to Australia, including in Java, Sulawesi, the Philippines, Borneo, New Guinea, the Solomon Islands, and Micronesia. The Asian corn borer is part of the species complex, ''Ostrinia'', in which members are difficult to distinguish based on appearance. Other ''Ostrinia'' such as '' O. orientalis'', '' O. scapulalis'', '' O. zealis'', and '' O. zaguliaevi'' can occur with ''O. furnacalis'', and the taxa can be hard to tell apart. This moth exhibits unique acoustic mimicry of a predator by mirroring the echolocation calls of bats in order to temporarily paralyze female moths and make it easier to mate. It is also well known as being an agricultural pest on several crops in the western Pacific region of Asia, esp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plutella Xylostella
The diamondback moth (''Plutella xylostella''), sometimes called the cabbage moth, is a moth species of the family Plutellidae and genus '' Plutella''. The small, grayish-brown moth sometimes has a cream-colored band that forms a diamond along its back. The species may have originated in Europe, South Africa, or the Mediterranean region, but it has now spread worldwide. The moth has a short life cycle (14 days at 25 °C), is highly fecund, and is capable of migrating long distances. Diamondback moths are considered pests as they feed on the leaves of cruciferous crops and plants that produce glucosinolates. However, not all of these plants are equally useful as hosts to the moth. Because of this, studies have suggested using wintercress as a trap crop around agricultural fields because diamondback moths are highly attracted to that plant but their larvae fail to survive when eggs are laid on it. Originally, pesticides were used to kill the moths but diamondbacks have de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
