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NPR1 (a non-expressor of pathogenesis-related genes1) has been reported to play an important role in plant defense by regulating signaling pathways. However, little to nothing is known about its function in herbivore-induced defense in monocot plants. Here, using suppressive substrate hybridization, we identified a NPR1 gene from rice, OsNPR1, and found(More)
Green leaf volatiles (GLVs), the products of the hydroperoxide lyase (HPL) branch of the oxylipin pathway, play important roles in plant defense responses to both insect pests and pathogens. However, little is known about the role of GLVs in the defense responses of rice to the white-backed planthopper (WBPH, Sogatella furcifera (Horváth)). Here, we found(More)
Hydroperoxide lyases (HPLs) play important roles in modulating plant defense by regulating the release of green leaf volatiles (GLVs) and the jasmonic acid (JA) pathway. CsiHPL1—a chloroplast-localized tea gene that encodes HPL—was previously cloned and predicted to be a regulator of plant defense responses. CsiHPL1 was expressed constitutively in(More)
Synthetic chemical elicitors of plant defense have been touted as a powerful means for sustainable crop protection. Yet, they have never been successfully applied to control insect pests in the field. We developed a high-throughput chemical genetics screening system based on a herbivore-induced linalool synthase promoter fused to a β-glucuronidase (GUS)(More)
Xylanase inhibitors have been reported to play an important role in plant defense against fungal pathogens. However, little to nothing is known about their role in defense against herbivores. Here, we cloned a rice xylanase-inhibiting protein (XIP)-type gene OsHI-XIP whose encoding protein is located in the endoplasmic reticulum (ER). Transcriptional(More)
The lacewing Chrysopa phyllochroma Waesmael is a polyphagous predator of many pests. Releasing lacewings is an important component of biological control programs, but it is difficult to establish populations on field crops. Electrophysiological and behavioral responses to 10 common plant volatiles were recorded to screen for lacewing-attracting compounds.(More)
More and more users joined in social network. The precise social trust value is critical for application system such as recommendation system. To a user, the egocentric network is formed by the user, his friends and social relationships between him and other users. We proposed an algorithm for inferring dynamic trust based on trust chains and interactions.(More)
We investigated the effect of the SHAM treatment of tea plants on their induced defense on a tea geometrid (TG), Ectropis obliqua Prout. Treatment of tea leaves with SHAM reduced the performance of TG and TG-elicited level of the lipoxygenase gene CsiLOX1 and the putative allene oxide synthase gene CsiAOS1. The release of wound-induced green leaf volatiles(More)
Spam is an imperative problem to the email communication today. Different users may have different views on judging spam which makes it difficult to filter spam from normal emails for email server. We found users with similar interest may have similar opinions. So in this paper, we proposed a spam filtering approach in which a collaborative and personalized(More)
12-Oxophytodienoate reductase (OPR) is a key enzyme in the biosynthesis of jasmonic acid (JA), which plays an important role in plant defense responses. Although multiple isoforms of OPRs have been identified in various annual herbaceous plants, genes encoding these enzymes in perennial woody plants have yet to be fully investigated. In the tea plant,(More)