Chinnasri B, Sipes B S, Schmitt D P
Graduate Assistant, Professor, and Emeritus Professor respectively, Department of Plant and Environmental Protection Sciences, University of Hawaii at Manoa, 3190 Maile Way, Honolulu, HI 96822.
J Nematol. 2006 Sep;38(3):319-25.
The potency of the inducers of systemic acquired resistance (SAR), acibenzolar-s-methyl, DL-alpha-amino-n-butyric acid (AABA), DL-beta-amino-n-butyric acid (BABA), gamma-amino-n-butyric acid (GABA), p-aminobenzoic acid (PABA), riboflavin, and salicylic acid (SA), in reducing reproduction of Meloidogyne javanica and Rotylenchulus reniformis in pineapple was investigated. All inducers were applied as foliar sprays to 1-mon-old pineapple plants (20 ml/plant) grown in 22-cm-diam. pots in the greenhouse. Two days after application, 10,000 eggs of M. javanica or R. reniformis were inoculated onto the plants. Six months after inoculation, nematode reproduction was measured. Acibenzolar decreased R. reniformis egg production by 58% compared to the nontreated control (P </= 0.05). Acibenzolar, BABA, and riboflavin reduced M. javanica egg production by 60% to 64% compared to the nontreated control (P </= 0.05). The point in the pineapple SAR pathway that each compound activates may explain the differing results between M. javanica and its giant cells and R. reniformis and its syncytia. Foliar application of acibenzolar at 100 and 200 mg/liter decreased by 30% and 60%, respectively, the number of M. javanica eggs as compared to the nontreated control. Fresh shoot weight of pineapple treated with 50, 100, 200, and 400 mg/liter acibenzolar was reduced by 1.2%, 3.3%, 9.9%, and 33% compared to the nontreated pineapple, respectively (P </= 0.05). Foliar application of acibenzolar may activate intrinsic resistance of pineapple to M. javanica and R. reniformis and may have a role in the sustainable management of nematodes in pineapple.
研究了系统获得性抗性（SAR）诱导剂苯并噻二唑 - S - 甲酯、DL-α-氨基丁酸（AABA）、DL-β-氨基丁酸（BABA）、γ-氨基丁酸（GABA）、对氨基苯甲酸（PABA）、核黄素和水杨酸（SA）在减少菠萝中爪哇根结线虫和肾形肾状线虫繁殖方面的效力。所有诱导剂均以叶面喷施的方式施用于温室中种植在直径22厘米花盆里的1月龄菠萝植株（20毫升/株）。施用两天后，将10000粒爪哇根结线虫或肾形肾状线虫的卵接种到植株上。接种六个月后，测量线虫繁殖情况。与未处理的对照相比，苯并噻二唑使肾形肾状线虫的产卵量减少了58%（P≤0.05）。与未处理的对照相比，苯并噻二唑、BABA和核黄素使爪哇根结线虫的产卵量减少了60%至64%（P≤0.05）。每种化合物激活菠萝SAR途径的位点可能解释了爪哇根结线虫及其巨型细胞与肾形肾状线虫及其合胞体之间不同的结果。与未处理的对照相比，以100和200毫克/升的浓度叶面喷施苯并噻二唑分别使爪哇根结线虫的卵数减少了30%和60%。与未处理的菠萝相比，用50、100、200和400毫克/升苯并噻二唑处理的菠萝的新梢鲜重分别降低了1.2%、3.3%、9.9%和33%（P≤0.05）。叶面喷施苯并噻二唑可能激活菠萝对爪哇根结线虫和肾形肾状线虫的内在抗性，并可能在菠萝线虫的可持续管理中发挥作用。
