Seed dressing with triflumezopyrim controls brown planthopper populations by inhibiting feeding behavior, fecundity and enhancing rice plant resistance

2021 ◽  
Author(s):  
Qing Wu ◽  
Guo Zhang ◽  
Yu Chen ◽  
Julong Yu ◽  
Yongkai Zhou ◽  
...  
Keyword(s):  
Feeding Behavior ◽  
Plant Resistance ◽  
Rice Plant ◽  
Brown Planthopper ◽  
Seed Dressing

High levels of silicon provided as a nutrient in hydroponic culture enhances rice plant resistance to brown planthopper

2015 ◽  
Vol 67 ◽  
pp. 20-25 ◽  
Author(s):  
Wenqiang He ◽  
Meng Yang ◽  
Zhihua Li ◽  
Junli Qiu ◽  
Fang Liu ◽  
...  
Keyword(s):  
Plant Resistance ◽  
Rice Plant ◽  
Brown Planthopper ◽  
Hydroponic Culture

Decrease of rice plant resistance and induction of hormesis and carboxylesterase titre in brown planthopper, Nilaparvata lugens (Stål) by xenobiotics

2012 ◽  
Vol 102 (2) ◽  
pp. 146-152 ◽  
Author(s):  
M. Nanthakumar ◽  
V. Jhansi Lakshmi ◽  
V. Shashi Bhushan ◽  
S.M. Balachandran ◽  
M. Mohan
Keyword(s):  
Plant Resistance ◽  
Rice Plant ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Nilaparvata Lugens Stål

Understanding rice plant resistance to the Brown Planthopper (Nilaparvata lugens ): A proteomic approach

PROTEOMICS ◽  
2009 ◽  
Vol 9 (10) ◽  
pp. 2798-2808 ◽  
Author(s):  
Zhe Wei ◽  
Wei Hu ◽  
Qishan Lin ◽  
Xiaoyan Cheng ◽  
Mengjie Tong ◽  
...  
Keyword(s):  
Plant Resistance ◽  
Rice Plant ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Proteomic Approach

scholarly journals Behavioral changes in the brown planthopper, Nilaparvata lugens, mediated by melatonin

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Longqing Shi ◽  
Junian Zhang ◽  
Liangmiao Qiu ◽  
Zhaowei Jiang ◽  
Zhenxing Xie ◽  
...  
Keyword(s):  
Rice Plant ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Behavioral Changes ◽  
The Other ◽  
Melatonin Receptor ◽  
Melatonin Treatment ◽  
Locomotor Pattern ◽  
Locomotor Activities ◽  
Locomotor Behaviors

Abstract Background Melatonin has been proved to exist and play importance roles in rice plant, such as biosynthesis and resistance. However, little is known about the function of melatonin in its monophagous pest, the brown planthopper. Methods In this study, we examined the effects of melatonin on the copulatory and locomotor behaviors of brachypterous and macropterous adult planthoppers by exposing them to melatonin, luzindole (a melatonin receptor antagonist), or a combination of melatonin and luzindole. Results A total of 68.7% of copulation events occurred at night in the control, while 31.2% occurred at night in the melatonin treatment, which led to a decrease in offspring. Brachypterous males were involved in mating events in the melatonin treatment but not in the other two treatments or the control. The daily locomotor pattern in the melatonin treatment was markedly different from that in the luzindole and melatonin and luzindole treatments. The total locomotor activities of the macropterous and brachypterous males exposed with melatonin were suppressed compared to those in the control. Melatonin significantly decreased the daytime and nighttime locomotor activities of macropterous females. In comparison, the activity of brachypterous females decreased slightly in the daytime but was more than double that of the control females at night. Conclusions Our results reveal that melatonin plays a role in the behaviors of brown planthoppers.

scholarly journals Proteomics of the Honeydew from the Brown Planthopper and Green Rice Leafhopper Reveal They Are Rich in Proteins from Insects, Rice Plant and Bacteria

Insects ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 582
Author(s):  
Jinghua Zhu ◽  
Kunmiao Zhu ◽  
Liang Li ◽  
Zengxin Li ◽  
Weiwei Qin ◽  
...  
Keyword(s):  
Immune System ◽  
Calcium Binding ◽  
Rice Plant ◽  
Brown Planthopper ◽  
Waste Product ◽  
Elongation Factor ◽  
Nilaparvata Lugens ◽  
Plant Responses ◽  
Green Rice Leafhopper ◽  
Plant Immune System

Honeydew is a watery fluid excreted by plant sap-feeding insects. It is a waste product for the insect hosts. However, it plays important roles for other organisms, such as serving as a nutritional source for beneficial insects and bacteria, as well as elicitors and effectors modulating plant responses. In this study, shotgun LC–MS/MS analyses were used to identify the proteins in the honeydew from two important rice hemipteran pests, the brown planthopper (Nilaparvata lugens, BPH) and green rice leafhopper (Nephotettix cincticeps, GRH). A total of 277 and 210 proteins annotated to insect proteins were identified in the BPH and GRH honeydews, respectively. These included saliva proteins that may have similar functions as the saliva proteins, such as calcium-binding proteins and apolipophorin, involved in rice plant defenses. Additionally, a total of 52 and 32 Oryza proteins were identified in the BPH and GRH honeydews, respectively, some of which are involved in the plant immune system, such as Pathogen-Related Protein 10, ascorbate peroxidase, thioredoxin and glutaredoxin. Coincidently, 570 and 494 bacteria proteins were identified from the BPH and GRH honeydews, respectively, which included several well-known proteins involved in the plant immune system: elongation factor Tu, flagellin, GroEL and cold-shock proteins. The results of our study indicate that the insect honeydew is a complex fluid cocktail that contains abundant proteins from insects, plants and microbes, which may be involved in the multitrophic interactions of plants–insects–microbes.

Identification of differentially expressed genes in brown planthopperNilaparvata lugens(Hemiptera: Delphacidae) responding to host plant resistance

2006 ◽  
Vol 96 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Zhifan Yang ◽  
Futie Zhang ◽  
Lili Zhu ◽  
Guangcun He
Keyword(s):  
Host Plant ◽  
Differentially Expressed Genes ◽  
Plant Resistance ◽  
Host Resistance ◽  
Host Plant Resistance ◽  
Gene Expression Regulation ◽  
Brown Planthopper ◽  
Differentially Expressed ◽  
Molecular Response ◽  
Rice Plants

AbstractThe brown planthopperNilaparvata lugensStål is one of the major insect pests of riceOryza sativaL. The host resistance exhibits profound effects on growth, development and propagation ofN. lugens. To investigate the molecular response ofN. lugensto host resistance, a cDNA-amplified fragment length polymorphism (cDNA-AFLP) technique was employed to identify the differentially expressed genes in the nymphs feeding on three rice varieties. Of the 2800 cDNA bands analysed, 54 were up-regulated and seven down-regulated qualitatively inN. lugenswhen the ingestion sources were changed from susceptible rice plants to resistant ones. Sequence analysis of the differential transcript-derived fragments showed that the genes involved in signalling, stress response, gene expression regulation, detoxification and metabolism were regulated by host resistance. Four of the transcript-derived fragments corresponding to genes encoding for a putative B subunit of phosphatase PP2A, a nemo kinase, a cytochrome P450 monooxygenase and a prolyl endopeptidase were further characterized in detail. Northern blot analysis confirmed that the expression of the four genes was enhanced inN. lugensfeeding on resistant rice plants. The roles of these genes in the defensive response ofN. lugensto host plant resistance were discussed.

scholarly journals Influence of Abscisic Acid-Biosynthesis Inhibitor Fluridone on the Feeding Behavior and Fecundity of Nilaparvata lugens

Insects ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 57
Author(s):  
Xu Ding ◽  
Xi Huang ◽  
Litong Sun ◽  
Jincai Wu ◽  
Jinglan Liu
Keyword(s):  
Abscisic Acid ◽  
Feeding Behavior ◽  
Brown Planthopper ◽  
Rice Cultivar ◽  
Nilaparvata Lugens ◽  
Electrical Penetration Graph ◽  
Callose Deposition ◽  
Abscisic Acid Biosynthesis ◽  
Biosynthesis Inhibitor ◽  
Deposition Area

Fluridone (FLU) was a pyrrolidone herbicide that was used for selective weeding in wheat, rice, corn and pasture and was also a biosynthesis inhibitor of abscisic acid (ABA), a significant plant hormone. ABA-promoted callose deposition facilitates rice resistance to pests but whether FLU had the opposite influence was unknown. The effects of FLU on the feeding behavior of the brown planthopper (Nilaparvata lugens Stål; BPH), after feeding with rice plants treated with FLU, were studied, using an electrical penetration graph (EPG). For susceptible rice cultivar (TN1), the duration for which BPH sucked phloem sap (N4 wave duration) after 15 μmol/L of FLU treatment was longer than that of the control but decreased after 30 and 60 μmol/L FLU treatments. Fecundity of BPH treated with 15 μmol/L FLU had no significant change, while the deposition area of callose was significantly decreased. For moderately-resistant rice cultivar (IR42), no differences in BPH feeding behavior and fecundity were observed but the deposition area of callose declined after treated with 15 μmol/L of FLU. These findings suggested that a low concentration of FLU (15 μmol/L) promoted BPH feeding behavior in TN1 but not in IR42 and the response in IR42 appeared to be more complicated, which provided supplementary evidence that ABA promoted plant resistance to BPH.

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