The thinly myelinated Aδ-fibers and unmyelinated C-fibers, predominantly involved in SFN [ 1– 3], arise in the skin where they serve for the detection of cold, heat and, as nociceptors, detection of painful stimuli [ 24– 26].
It can have several origins like environmental extremes for example, cold, heat, hypoxia, physical exercise or malnutrition.
In the future, experimental verification of some of the predicted target molecules will be important; particularly those that might be crucial for agricultural performance, such as genes responsible for abiotic stress responses (cold, heat and drought).
If chili or refried beans are still cold, heat for a minute longer until the desired temperature is reached.
Thresholds for cold and heat pain were significantly decreased, indicating cold and heat hyperalgesia (HPT: 0.60±1.50; CPT: 1.01±1.23; both p<0.001).
Threshold temperatures for the sensation of warmth, cold, heat pain, and cold pain were determined using a computerized Thermo test (Somedic, Fastan, Sweden) as previously described (16, 17).
For salt stress, the seedlings were shifted to Yoshida medium containing 200 mM NaCl; for drought stress, the seedlings were air-dried; for cold and heat stress, the seedlings were shifted to growth chamber at 4°C and 42°C respectively.
For cold and heat treatments, the seedlings were transferred to the 4 °C or 42 °C incubator.
For cold and heat treatments, the plates were transferred to 4°C freezer or 37°C growth chamber.
For cold and heat treatments, the seedlings were incubated at 4°C for 5 h or 42°C for 2 h, respectively.
