Syed-Ab-Rahman Sharifah Farhana, Carvalhais Lilia Costa, Omar Dzolkhifli
Department of Plant Protection, Faculty of Agriculture, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia.
Center for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD, Australia.
Heliyon. 2020 Jan 7;6(1):e03151. doi: 10.1016/j.heliyon.2019.e03151. eCollection 2020 Jan.
Bacterial leaf blight (BLB) and sheath brown rot (SBR), caused by pv. (Xoo) and , respectively, are bacterial diseases that lead to substantial yield losses in rice. Natural plant-based products represent a sustainable alternative to combat bacterial diseases due to their biodegradability and overall safety. However efficient ways of delivering them are crucial to their success. In an attempt to maximize the antibacterial properties of botanical bactericides for the control of these pathogens, this study evaluated the efficiency of different emulsion formulations of extracts. The emulsion formulations were demonstrated to be effective in controlling BLB and SBR of rice in plate assays and under glasshouse conditions. The observed inhibition of the bacterial pathogens and significant disease suppression indicate that these plant extract formulations represent promising alternatives to be adopted in management strategies for controlling rice diseases.
由稻瘟病菌（Xoo）和层出镰刀菌分别引起的水稻白叶枯病（BLB）和叶鞘褐腐病（SBR）是导致水稻大幅减产的细菌性病害。天然植物基产品因其可生物降解性和整体安全性，是防治细菌性病害的可持续替代方案。然而，有效的递送方式对其成功应用至关重要。为了最大限度地发挥植物源杀菌剂对这些病原菌的抗菌特性，本研究评估了不同乳剂配方的提取物的效果。在平板试验和温室条件下，乳剂配方被证明对控制水稻白叶枯病和叶鞘褐腐病有效。观察到对细菌病原体的抑制以及显著的病害抑制表明，这些植物提取物配方是控制水稻病害管理策略中很有前景的替代方案。
