STUDY OF TEMPERATURE FROM PHOTOSENSITIZERS PLANTS AND THEIR PHOTODYNAMIC IMPACT ON APHIDS

When organisms are exposed to high temperatures, a mismatch between the production and removal of reactive oxygen species develops (ROS). It has been shown that an increase in temperature alters the connection between aphids and the plants that they feed on. The tests were carried out at three distinct temperatures (20, 25, and 28 degrees Celsius). To begin, we observed the growth of Macrosiphum rosae and recorded the alterations. Moreover, the enzyme activity of aphid M. rosae tissues and the host plant was investigated at various temperatures, including that of SOD, CAT and GST, as well as that of -glucosidase, polyphenol oxidase (PPO) and peroxidase (POD). An increase in temperature to 28 degrees Celsius had a negative impact on M. rosae's biology, as it lowered the population's lifespan and fertility while also decreasing the time required for reproduction. Two separate defensive responses were evoked by aphids when exposed to heat stress for short periods of time (24–96 h) and lengthy periods of time (two weeks). The greatest aphid defensive reflexes were seen around 28 degrees Celsius, which was also the temperature range where the biggest fluctuations occurred.