| Title: | Plant cell responses to allelopathy: from oxidative stress to programmed cell death |
| Author(s): | Soln K; Klemencic M; Koce JD; |
| Address: | "Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia. Department of Chemistry and Biochemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Vecna pot 113, 1000, Ljubljana, Slovenia. Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia. jasna.dolenc.koce@bf.uni-lj.si" |
| DOI: | 10.1007/s00709-021-01729-8 |
| ISSN/ISBN: | 1615-6102 (Electronic) 0033-183X (Linking) |
| Abstract: | "Allelopathy is a plant-plant interaction in which one plant releases biologically active compounds that have negative effects on the fitness of the target plant. The most pronounced effects are inhibition of seed germination and growth of neighboring plants. The roots of these plants are in contact with the allelochemicals released into the soil, as the primary target of the allelopathic action. To date, the best documented allelopathic activities relate to some weeds and invasive alien plants that show rapid spread and successful growth. A better understanding of the mechanisms of allelopathy will help to improve crop production and to manage and prevent plant invasions. At the cellular level, allelochemicals induce a burst of reactive oxygen species in the target plants, which leads to oxidative stress, and can promote programmed cell death. Lipid peroxidation and cell membrane changes, protein modifications, and increased protease activities are the early signs of cell damage. When enzymatic and nonenzymatic antioxidants cannot scavenge reactive oxidants, this can result in hydrolytic or necrotic degradation of the protoplast. Cell organelles then lose their integrity and function. In roots, the structure and activity of the apical meristem are changed, which affects root growth and water absorption. Such allelopathically active compounds might thus be applied to control and manage weeds and invasive plants in a more sustainable way, to reduce chemical pollution" |
| Keywords: | *Allelopathy Apoptosis Oxidative Stress Pheromones *Plant Cells/metabolism Plant Weeds Allelopathy Plant proteases Programmed cell death Reactive oxygen species Ultrastructure; |
| Notes: | "MedlineSoln, Katarina Klemencic, Marina Koce, Jasna Dolenc eng P1-0212/Javna Agencija za Raziskovalno Dejavnost RS/ Review Austria 2022/01/08 Protoplasma. 2022 Sep; 259(5):1111-1124. doi: 10.1007/s00709-021-01729-8. Epub 2022 Jan 7" |
