Effects of Inducers of Systemic Acquired Resistance on Reproduction of Meloidogyne javanica and Rotylenchulus reniformis in Pineapple.
Effects of Inducers of Systemic Acquired Resistance on Reproduction of Meloidogyne javanica and Rotylenchulus reniformis in Pineapple.
复制标题
系统获得性抗性诱导剂对菠萝中爪哇根结线虫和肾状线虫繁殖的影响。
作者：
B. Chinnasri;B. Sipes;D. Schmitt
研究了系统获得性抗性（SAR）诱导剂、硫代苯甲酸、DL-α-氨基-正-丁酸（AABA）、DL-β-氨基-正-丁酸（BABA）、γ-氨基-正-丁酸（GABA）、对-氨基苯甲酸（PABA）、核黄素和水杨酸（SA）在减少菠萝中的爪哇根结线虫（Meloidogyne javanica）和肾形线虫（Rotylenchulus reniformis）繁殖中的效力。将所有诱导剂作为叶面喷雾剂施用到生长在22-cm直径的温室中的1个月大的菠萝植物（20 ml/植物）。温室里的花盆用药后第2天，10，000粒M. javanica或R.将肾形菌接种到植物上。接种后6个月，测量线虫繁殖。酸苯偶氮降低R.肾形线虫产卵量比未处理对照组提高58%（P </= 0.05）。Acibenzolar、BABA和核黄素降低M.与未处理对照相比，爪哇产蛋量增加60%至64%（P </= 0.05）。菠萝SAR途径中每种化合物激活的点可以解释M。javanica及其巨细胞和R.肾形核及其合胞体。叶面喷施100和200 mg/L的苯唑酸，可分别减少30%和60%的M.与未处理的对照相比，爪哇鸡蛋。50、100、200和400 mg/L的苯唑处理的菠萝鲜梢重分别比未处理的菠萝降低1.2%、3.3%、9.9%和33%（P </= 0.05）。叶面喷施苯唑酸可激活菠萝对M. javanica和R. reniformis，并可能在菠萝线虫的可持续管理中发挥作用。
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.