Morphometric and total protein responses in Meloidogyne incognita second-stage juveniles to Nemafric-BL phytonematicide
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منابع مشابه
Effect of Soil Texture and the Clay Component on Migration of Meloidogyne incognita Second-stage Juveniles.
The vertical migration of M. incognita juveniles introduced at 20 cm from the roots was studied in five natural soils, 100% silica sand, 95% silica sand with 5% clay, 90% silica sand with 10% clay, and 95% silica sand with 5% clay as a concentrated layer. In natural soils the percentage of juveniles capable of migrating 20 cm and penetrating the roots decreased when the percentage of clay and s...
متن کاملIsolation of Subcellular Granules from Second-Stage Juveniles of Meloidogyne incognita.
Subcellular granules from the second-stage (preparasitic) juveniles of root-knot nematode Meloidogyne incognita were isolated by isopycnic centrifugation on Percoll. The granules had an apparent density of 1.13 g/cm(3). The relative specific activity of acid phosphatase in the granule extract was 8.4. Acid phosphatase activity was also detected histochemically in the subventral gland granules. ...
متن کاملEffect of Ammonium Ions on Egg Hatching and Second-Stage Juveniles of Meloidogyne incognita in Axenic Tomato Root Culture.
Eggs, either dispersed or in masses, and second-stage juveniles (J2) of Meloidogyne incognita were exposed to different concentrations of ammonium ions in a nutrient agar medium upon which excised tomato roots were growing. Egg hatch and J2 penetration of the roots was slowed or inhibited at high (54 and 324 mg/liter) but not at low (1.5 and 9 mg/liter) concentrations of ammonium nitrate. The e...
متن کاملEffects of Cyanide Ion and Hypoxia on the Volumes of Second-Stage Juveniles of Meloidogyne incognita in Polyethylene Glycol Solutions.
Changes in the volumes of second-stage juveniles of Meloidogyne incognita were monitored in aqueous solutions of polyethylene glycol supplemented with dilute balanced salts. At key points within a 48-hour cycle of fluctuating water potential, nematodes were placed under hypoxic conditions or exposed to the respiratory inhibitor, sodium cyanide, to detect any respiration-dependent process that r...
متن کاملNeoplastic Growths in Preparasitic Juveniles of Meloidogyne incognita.
A b e r r a n t morpholog ica l forms have been reported for a number of free-living and plant-parasitic nematodes. In some cases aberrancy is genetic (4) and in others it is environmentally induced (5,6). More than 200 mutant genes known to control aberrant phenotypes of Caenorhabclitis elegans (Maupas) Dougherty have been reported (4). Some of these mutants affect collagen synthesis and cutic...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2021
ISSN: 2045-2322
DOI: 10.1038/s41598-020-80210-7