Growth and Development of Aphelenchus Avenae Bastian
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چکیده
منابع مشابه
Gametogenesis in amphimictic and parthenogenetic populations of Aphelenchus avenae.
The female reproductive system of Aphelenchus avenae, studied in orcein-stained material, showed a peculiar structural pattern not yet reported in other nematodes. Chromosome morphology and behavior during gametogenesis could be studied in more detail than in other tylenchid or aphelenchid species investigated to date. In a bisexual population from Australia, gametogenesis was by normal meiosis...
متن کاملInhibition of Acetylcholinesterases from Aphelenchus avenae by Carbofuran and Fenamiphos.
Exposure to carbofuran and fenamiphos for 72 hours reduced the numbers of active Aphelenchus avenae in aqueous suspension by > 75%. When nematicides were removed, many A. avenae exposed to carbofuran resumed normal movement but A. avenae treated with fenamiphos did not recover. Acetylcholinesterase (AChE) activity was suppressed by > 95% in nematodes treated with carbofuran or fenamiphos. Howev...
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The influence of Aphelenchus avenae on the relationship between cotton (Gossypium hirsutum 'Stoneville 213') and Gigaspora margarita or Glomus etunicatus was assessed by its effect on the mycorrhizal stimulation of plant growth and microorganism reproduction. The mycophagous nematode usually did not suppress stimulation of shoot growth resulting from mycorrhizae (G. margarita) at inoculum level...
متن کاملObservations on development of the gonad and on reproduction in Aphelenchus avenae.
Nuclear changes occurring in male and female gonads of Aphelenchus avenae during postembryogenesis were studied in relation to time and feeding periods on Rhizoetonia solani. Development of the female gonad was similar to that in other nematode species, but development of the male gonad followed the growth pattern of female rather than male gonads. This deviation was explained by the assumption...
متن کاملRespiration Responses of a Caenorhabditis sp. and Aphelenchus avenae to the Nematicide, 1,2-dibromoethane (EDB).
The respiration rate of third stage larvae of Caenorhabditis sp. exposed to 0.53 x 10(2) M EDB was 120% greater than in untreated checks and was highest shortly after the exposure began. Similarly-treated third- and fourth-stage Aphelenchus avenae exhibited no marked respiratory response. Different responses of these animals to EDB probably reflect basic physiological differences between the ne...
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ژورنال
عنوان ژورنال: Australian Journal of Biological Sciences
سال: 1970
ISSN: 0004-9417
DOI: 10.1071/bi9700411