diverse chemical categories, persuade chemotaxis in nematodes.
Insects are generally infected by EPNs as they are capable of locating CO 2 , insect odorants, and plant odorants [140]. Numerous
sulfur-containing compounds, like dimethyl sulfide, dimethyl trisulfide, methanethiol, and glucosinolate catabolic substances like
thiocyanates and isothiocyanates, are discharged from the roots
responding to insect incursion. Organic acids, proteins, saccharides, amino acids, lipids, coumarins, flavonoids, enzymes, and aliphatic and aromatic substances are samples of the chief compounds
present in the root rhizosphere. The sensory neurons, otherwise
called as the BAG neurons, that are located in the head can control
free-living and parasitic nematodes’ reactions for CO 2
(Table 1) [141].
2 Tritrophic Interactions [148]
Diverse ecological interactions thrive on chemical cues. This assay
helps to study the complexity of adaptations in a chemical ecology
of a chemically mediated tritrophic interactions among plants,
insects, and nematodes.
2.1 Materials
Required
l
Plant potato.
l
EPN‐infected cadavers.
l
EPNs.
l
EPN cues.
2.2 Plants, Insects,
and Nematodes
2.2.1 Procedure
1. Expose roots of plants (potato or any plant) to living EPNs,
EPN chemical cues, or apt controls.
2. To identify the direct responses of plant on EPNs exposure.
(a) Add 90 ml of water containing 35,000 IJs into soil to each
potted plant and 90 ml of water to control pot plants.
(b) Note: Add 90 ml per day, for 2 days, this allows the soil to
retain the required water.
3. To identify the direct plant responses on EPN chemical cues
exposure.
(a) Expose the roots of the plants to EPN chemical cues
limiting physical contact to EPNs.
4. Expose the headspace of the infected carcass by EPN
(G. mellonella with nematodes) and roots of plants to filtered
clean air.
5. Transplant the plants prior to 2 weeks of the experiment into
chambers made of clean glass that are filled with peat‐based
potting mix.
32
Chemical Ecology
Insects are generally infected by EPNs as they are capable of locating CO 2 , insect odorants, and plant odorants [140]. Numerous
sulfur-containing compounds, like dimethyl sulfide, dimethyl trisulfide, methanethiol, and glucosinolate catabolic substances like
thiocyanates and isothiocyanates, are discharged from the roots
responding to insect incursion. Organic acids, proteins, saccharides, amino acids, lipids, coumarins, flavonoids, enzymes, and aliphatic and aromatic substances are samples of the chief compounds
present in the root rhizosphere. The sensory neurons, otherwise
called as the BAG neurons, that are located in the head can control
free-living and parasitic nematodes’ reactions for CO 2
(Table 1) [141].
2 Tritrophic Interactions [148]
Diverse ecological interactions thrive on chemical cues. This assay
helps to study the complexity of adaptations in a chemical ecology
of a chemically mediated tritrophic interactions among plants,
insects, and nematodes.
2.1 Materials
Required
l
Plant potato.
l
EPN‐infected cadavers.
l
EPNs.
l
EPN cues.
2.2 Plants, Insects,
and Nematodes
2.2.1 Procedure
1. Expose roots of plants (potato or any plant) to living EPNs,
EPN chemical cues, or apt controls.
2. To identify the direct responses of plant on EPNs exposure.
(a) Add 90 ml of water containing 35,000 IJs into soil to each
potted plant and 90 ml of water to control pot plants.
(b) Note: Add 90 ml per day, for 2 days, this allows the soil to
retain the required water.
3. To identify the direct plant responses on EPN chemical cues
exposure.
(a) Expose the roots of the plants to EPN chemical cues
limiting physical contact to EPNs.
4. Expose the headspace of the infected carcass by EPN
(G. mellonella with nematodes) and roots of plants to filtered
clean air.
5. Transplant the plants prior to 2 weeks of the experiment into
chambers made of clean glass that are filled with peat‐based
potting mix.
32
Chemical Ecology