| Title: | Interactions between brown planthopper (Nilaparvata lugens) and salinity stressed rice (Oryza sativa) plant are cultivar-specific |
| Author(s): | Quais MK; Munawar A; Ansari NA; Zhou WW; Zhu ZR; |
| Address: | "State Key Laboratory of Rice Biology, Ministry of Agriculture; Key Laboratory of Molecular Biology of Crop Pathogens and Insects; Institute of Insect Sciences, Zhejiang University, Hangzhou, Zhejiang, China. Senior Scientific Officer, Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh. State Key Laboratory of Rice Biology, Ministry of Agriculture; Key Laboratory of Molecular Biology of Crop Pathogens and Insects; Institute of Insect Sciences, Zhejiang University, Hangzhou, Zhejiang, China. zrzhu@zju.edu.cn" |
| DOI: | 10.1038/s41598-020-64925-1 |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "Salinity stress triggers changes in plant morphology, physiology and molecular responses which can subsequently influence plant-insect interactions; however, these consequences remain poorly understood. We analyzed plant biomass, insect population growth rates, feeding behaviors and plant gene expression to characterize the mechanisms of the underlying interactions between the rice plant and brown planthopper (BPH) under salinity stress. Plant bioassays showed that plant growth and vigor losses were higher in control and low salinity conditions compared to high salinity stressed TN1 (salt-planthopper susceptible cultivar) in response to BPH feeding. In contrast, the losses were higher in the high salinity treated TPX (salt-planthopper resistant cultivar). BPH population growth was reduced on TN1, but increased on TPX under high salinity condition compared to the control. This cultivar-specific effect was reflected in BPH feeding behaviors on the corresponding plants. Quantification of abscisic acid (ABA) and salicylic acid (SA) signaling transcripts indicated that salinity-induced down-regulation of ABA signaling increased SA-dependent defense in TN1. While, up-regulation of ABA related genes in salinity stressed TPX resulted in the decrease in SA-signaling genes. Thus, ABA and SA antagonism might be a key element in the interaction between BPH and salinity stress. Taken together, we concluded that plant-planthopper interactions are markedly shaped by salinity and might be cultivar specific" |
| Keywords: | "Animals Feeding Behavior Gene Expression Profiling Gene Expression Regulation, Plant Genes, Plant *Hemiptera *Herbivory *Host-Parasite Interactions/genetics Oryza/*genetics/*parasitology Phenotype *Salt Stress;" |
| Notes: | "MedlineQuais, Md Khairul Munawar, Asim Ansari, Naved Ahmad Zhou, Wen-Wu Zhu, Zeng-Rong eng Research Support, Non-U.S. Gov't England 2020/05/18 Sci Rep. 2020 May 15; 10(1):8051. doi: 10.1038/s41598-020-64925-1" |
