Aphelenchida is a moderately large order of
nematode
The nematodes ( or grc-gre, Νηματώδη; la, Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-Parasitism, parasitic nematodes also known as eelworms. They are a diverse animal phylum inhab ...
s. Aphelenchida have a
stylet for feeding and a very prominent median bulb in the
oesophagus. They are cosmopolitan. Some are associated with
insects, and may be
ectoparasite
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has ...
s or
endoparasite
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has c ...
s, or merely use the
insect as transport. Others are associated with
plants, as
root,
stem
Stem or STEM may refer to:
Plant structures
* Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang
* Stipe (botany), a stalk to support some other structure
* Stipe (mycology), the stem of a mushro ...
, or
leaf parasites, which may be pathogenic to the plant or not. Still others are associated with
fungi, and some are free-living. There may be considerable plasticity of feeding habits within species, involving almost any combination of the categories listed above. Sometimes different feeding habits involve morphologically distinct phases, but they may involve only behavioral differences, and sometimes depend only on the immediate availability of different foods. Some
life cycles involve a definite progression of particular hosts and depend on the life cycle of the host. Fungal feeders may have life cycles as short as 5 days.
This order includes:
*
Aphelenchidae
Aphelenchidae is a family of nematodes belonging to the order Aphelenchida
Aphelenchida is a moderately large order of nematodes. Aphelenchida have a stylet for feeding and a very prominent median bulb in the oesophagus. They are cosmopolit ...
*
Aphelenchoididae
Aphelenchoididae is a nematode family in the order Aphelenchida.
List of genera
Subfamily Anomyctinae
* Genus '' Anomyctus''
Subfamily Aphelenchoidinae''
* Genus '' Aphelenchoides''
* Genus '' Ficophagus''
* Genus '' Laimaphelenchus''
* Ge ...
*
Myenchildae
Myenchildae is a family of nematodes belonging to the order Aphelenchida
Aphelenchida is a moderately large order of nematodes. Aphelenchida have a stylet for feeding and a very prominent median bulb in the oesophagus. They are cosmopolitan. ...
*
Paraphelenchidae
Paraphelenchidae is a family of nematodes belonging to the order Aphelenchida
Aphelenchida is a moderately large order of nematodes. Aphelenchida have a stylet for feeding and a very prominent median bulb in the oesophagus. They are cosmopol ...
References
External links
Nematode orders
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