| Title: | "Secondary Metabolites, Ferulic Acid and p-Hydroxybenzoic Acid Induced Toxic Effects on Photosynthetic Process in Rumex acetosa L" |
| Address: | "Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain. CITACA, Agri-Food Research and Transfer Cluster, Campus da Auga, University of Vigo, 32004 Ourense, Spain" |
| ISSN/ISBN: | 2218-273X (Electronic) 2218-273X (Linking) |
| Abstract: | "The elimination of broadleaf weeds from agricultural fields has become an urgent task in plant and environment protection. Allelopathic control is considered a potential approach because of its exclusive and ecological safety measures. Plant secondary metabolites also called allelochemicals are released from plant leaves, roots, stem, bark, flowers and play significant roles in soil rhizosphere signaling, chemical ecology, and plant defense. The present study was carried out to evaluate the impact of two allelochemicals; ferulic acid (FA) and p-hydroxybenzoic acid (pHBA) on photosynthetic characteristics; F(v)/F(m): efficiency of photosystem II photochemistry in the dark-adapted state; PhiPSII: photosynthetic quantum yield; NPQ, non-photochemical quenching; qP, photochemical quenching, and photon energy dissipation (1-qP)/NPQ in Rumex acetosa following 6 days exposure. R. acetosa seedlings were grown in perlite culture, irrigated with Hoagland solution and treated with allelopathic compounds FA and pHBA and were evaluated against the photosynthetic attributes. Both compounds behaved as potent inhibitors of photosynthetic traits such as F(v)/F(m), PhiPSII, qP, and NPQ in R. acetosa. Photon energy dissipation (1-qP)/NPQ increased significantly from days 3 to 6. Higher dissipation of absorbed energy indicates the inactivation state of reaction centers and their inability to effectively use the absorbed energy in photosynthesis. These results indicated the potential allelopathic application of FA and pHBA for control of broadleaf weed, Rumex acetosa" |
| Keywords: | Biological Control Agents/pharmacology Coumaric Acids/*pharmacology Herbicides/pharmacology Hydroxybenzoates/*pharmacology Light Pheromones/pharmacology Photosynthesis/*drug effects/physiology Photosystem II Protein Complex/*antagonists & inhibitors/metab; |
| Notes: | "MedlineHussain, M Iftikhar Reigosa, Manuel J eng 10PXIB310261PR/Xunta de Galicia/ Research Support, Non-U.S. Gov't Switzerland 2021/02/11 Biomolecules. 2021 Feb 5; 11(2):233. doi: 10.3390/biom11020233" |
