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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. Some are associated with insects, and may be ectoparasites or endoparasites, or merely use the insect as transport. Others are associated with plants, as root, stem, 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:
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. Some are associated with insects, and may be ectoparasites or endoparasites, or merely use the insect as transport. Others are associated with plants, as root, stem, 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 Aphelenchoididae Myenchildae ParaphelenchidaeAphelenchida est un ordre de nématodes (les nématodes sont un embranchement de vers non segmentés, recouverts d'une épaisse cuticule et mènant une vie libre ou parasitaire).
(vraisemblablement incomplète)
Aphelenchida est un ordre de nématodes (les nématodes sont un embranchement de vers non segmentés, recouverts d'une épaisse cuticule et mènant une vie libre ou parasitaire).
提示：本条目的主题不是葉芽線蟲屬。滑刃总科（學名：Aphelenchoidea）[1]，亦作芽葉線蟲總科[2]，是線蟲的一個分類單元。舊屬胞管腎綱墊刃亚纲滑刃目，今屬色矛綱小桿目垫刃亚目的垫刃下目[3]。
截至2018年1月26日 (2018-01-26)[update]在WoRMS的紀錄，滑刃總科只餘下列兩個科[3]：
ITIS的滑刃目還包括下列兩個科：
下列各科現時改屬其他分類：
|access-date=中的日期值 (帮助) |access-date=中的日期值 (帮助) 