Courses : Forest Ecology Lecturer :Frischa Adellia Semester : 4thSemester, 2022/2023 Session Suction Inhibition-Based Resistance Resistance Based on Suction Inhibition is a form of resistance in plants to pest attacks that occurs through inhibiting the ability of insects to suck plant juices. Herbivorous insects such as aphids, thrips, or aphids often use their special suckers to absorb fluids from plants. Plants that have resistance based on suction inhibition are able to inhibit or disrupt this suction process, so that the insect cannot take nutrients effectively from the plant. In this context, resistance based on suction inhibition often occurs through the production of certain chemical compounds that can disrupt the insect's suction system. These compounds may play a role in inhibiting the insect's sucking apparatus or causing physiological disturbances in the insect, thereby reducing its ability to damage plants. Some examples of compounds involved in suction inhibition-based resistance include alkaloids, terpenoids, phenolic glycosides, and other aromatic compounds. These compounds can be found in various parts of plants such as leaves, stems, or roots, and they act as defensive chemicals that protect plants from attacks by sucking insects. The benefits of resistance-based suction inhibition include: 1. Reduction of plant damage: By interfering with the ability of insects to suck plant juices, suction inhibition-based resistance can reduce damage caused by attacks by pests such as aphids or aphids. 2. Reduction of disease spread: Some sucking insects such as aphids can act as disease vectors, spreading pathogens from one plant to another. By inhibiting these insects, suction inhibition-based resistance can also help reduce the spread of disease. 3. Reduced dependence on pesticides: Plants that have suction inhibition-based resistance require less pesticide protection, reducing the use of chemical pesticides and their impact on the environment 4. Increased ecosystem stability: By reducing crop damage and the spread of disease, suction inhibition-based resistance can help maintain the stability of agricultural ecosystems as a whole. Thus, resistance based on sucking inhibition is an important strategy in plant protection against sucking pest attacks and has the potential to increase agricultural productivity and sustainability. The goals of suction inhibition-based resistance in plants are: 1. Plant protection: The main goal of resistance based on sucking inhibition is to protect plants from attacks by sucking insects that can damage plants and reduce crop yields. By inhibiting the ability of insects to suck plant juices, plants can remain healthy and productive. 2. Reduction of pesticide use: One important goal of suction inhibition-based resistance is to reduce dependence on chemical pesticides. With plants that have resistance to sucking insects, farmers can reduce or even eliminate the use of pesticides that are harmful to the environment and human health. 3. Increases production stability: Suction inhibition-based resistance helps increase the stability of agricultural production by reducing losses caused by attacks by sucking insects. Healthier and more productive plants tend to produce more consistent yields over time. 4. Reduces the spread of disease: Some sucking insects also act as disease vectors that can transmit pathogens from one plant to another. By inhibiting sucking insects, resistance based on sucking inhibition can also help reduce the spread of plant diseases. 5. Increase production efficiency: Plants that are protected from attacks by sucking insects tend to experience better growth and greater yields. This can improve the efficiency of agricultural production and optimize the use of agricultural resources. Thus, the aim of suction inhibition-based resistance in plants is to protect plants, reduce pesticide use, increase production stability, reduce the spread of disease, and increase overall agricultural production efficiency.