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He L, Shi Y, Ding W, Huang H, He H, Xue J, Gao Q, Zhang Z, Li Y, Qiu L. Cytochrome P450s genes CYP321A9 and CYP9A58 contribute to host plant adaptation in the fall armyworm Spodoptera frugiperda. PEST MANAGEMENT SCIENCE 2023; 79:1783-1790. [PMID: 36627818 DOI: 10.1002/ps.7355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 12/25/2022] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND The fall armyworm, Spodoptera frugiperda is one of the most destructive agricultural pests, which can complete their entire life cycle on various plants. At present, some detoxification genes have been proved to be involved in the adaptability to plants in insects. However, the genetics behind insect pest responses to host switches, and their ability to adapt to new host plants, remain poorly understood. This study was conducted to evaluate the adaptation of S. frugiperda to host plant and determine the roles of CYP321A9 and CYP9A58 in the detoxification metabolism of the fall armyworm. RESULTS The results revealed that feeding on maize was more suitable for S. frugiperda to develop compared with rice. In addition, knocking down of SfCYP321A9 and SfCYP9A58 resulted in a prolonged developmental time of S. frugiperda larvae that fed on rice. Meanwhile, RNAi knockdown of SfCYP321A9 resulted in significantly higher mortality of S. frugiperda larvae when exposed to the rice allelochemicals, ferulic acid, gramine and tricin. Furthermore, overexpression of SfCYP321A9 significantly reduced mortality in Drosophila melanogaster when exposed to gramine and tricin. CONCLUSION Our results suggest that CYP321A9 and CYP9A58 genes play a key role in host plant adaptation in S. frugiperda, which contribute to a greater understanding of the molecular basis of host plant adaptation and provide the means to develop effective management tools for S. frugiperda resistance. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Li He
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Yang Shi
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Wenbing Ding
- National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Hunan Provincial Engineering & Technology Research Center for Biopesticide and Formulation Processing, Changsha, China
| | - Hong Huang
- Hunan Institute of Plant Protection, Changsha, China
| | - Hualiang He
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Jin Xue
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Qiao Gao
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Zhixiang Zhang
- College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Youzhi Li
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering & Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
| | - Lin Qiu
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, College of Plant Protection, Hunan Agricultural University, Changsha, China
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dos Santos MVC, Nascimento PT, Simeone ML, Lima PF, Simeão RM, Auad A, Oliveira I, Mendes S. Performance of Fall Armyworm Preimaginal Development on Cultivars of Tropical Grass Forages. INSECTS 2022; 13:1139. [PMID: 36555049 PMCID: PMC9784468 DOI: 10.3390/insects13121139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/06/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is a polyphagous pest species capable of feeding on almost all forage and grain crops, although the food quality for the larvae likely varies among plant species and cultivars. The cultivation of grass forage species with grains has increasingly been adopted in Brazil, within both no-tillage and crop-livestock integration systems. In this study, we evaluated the performance of S. frugiperda larvae on 14 forage cultivars of Brachiaria, Panicum, and Cynodon, which are widely used in integrated cropping systems in Brazil. The biological performance of S. frugiperda varied among the cultivars. The larval survival rates were lower on Panicum maximum 'Massai' and P. maximum 'Tamani' cultivars. The insects had the highest performance indexes on Brachiaria brizantha 'Paiaguás', B. brizantha 'Marandu', and B. brizantha 'Xaraés' cultivars, followed by Brachiaria ruziziensis, previously proposed as a standard grass forage for comparisons with other species. On P. maximum, the insect had the lowest performance indexes, with values equal to zero when feeding on the P. maximum 'Massai' and 'Tamani' cultivars. These results will help make management decisions when cultivating grass forage plants in crop production systems in which S. frugiperda infestation is of concern.
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Affiliation(s)
- Marcos V. C. dos Santos
- Campus de Sete Lagoas, Universidade Federal de São João Del Rei, Rodovia MG-424, Km 47, Bairro Indústrias, Caixa Postal 56, Sete Lagoas 35701-970, MG, Brazil
| | | | - Maria L. Simeone
- Embrapa Milho e Sorgo, Rodovia MG 424, Km 45, Sete Lagoas 35701-970, MG, Brazil
| | - Patrick F. Lima
- Campus de Sete Lagoas, Universidade Federal de São João Del Rei, Rodovia MG-424, Km 47, Bairro Indústrias, Caixa Postal 56, Sete Lagoas 35701-970, MG, Brazil
| | - Rosangela M. Simeão
- Embrapa Gado de Corte, Av. Rádio Maia, 850, Campo Grande 79106-550, MS, Brazil
| | - Alexander Auad
- Embrapa Gado de Leite, Av. Eugênio do Nascimento, 610, Juiz de Fora 36038-330, MG, Brazil
| | - Ivênio Oliveira
- Embrapa Milho e Sorgo, Rodovia MG 424, Km 45, Sete Lagoas 35701-970, MG, Brazil
| | - Simone Mendes
- Embrapa Milho e Sorgo, Rodovia MG 424, Km 45, Sete Lagoas 35701-970, MG, Brazil
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Ribeiro LDP, Amandio DTT, Klock ALS, Nesi CN, Rech ÂF, Baldin ELL. Deois flexuosa (Hemiptera: Cercopidae) in Perennial Forage Species (Poaceae): Quali-quantitative Impacts and Tolerance Expression. NEOTROPICAL ENTOMOLOGY 2022; 51:777-794. [PMID: 35945398 DOI: 10.1007/s13744-022-00984-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
This study aimed to characterize the quantitative and qualitative damage caused by Deois flexuosa (Walker) (Hemiptera: Cercopidae) adults in Axonopus catharinensis cv. SCS 315 Catarina and Cynodon dactylon (Tifton 85 and Jiggs cultivars) under different infestation densities and, consequently, the expression of tolerance-type resistance. For this purpose, potted plants were infested with different insect densities (0, 5, 10, 20, and 40 adults m-2). The impact of the infestation levels was assessed in the first growth cycle (10-day coexistence period) and in the regrowth (40 days after the first cut, without infestation) based on crop yield and chemical-bromatological composition as well as on photosynthetic pigments and hydrogen peroxide content. The principal component analysis relating infestation density and chemical-bromatological parameters showed a positive correlation between infestation density of D. flexuosa and the contents of neutral detergent fiber, acid detergent fiber, and the dry matter (DM). On the other hand, infestation density inversely correlated with the tillering rate, photosynthetic pigments (chlorophyll a and b, carotenoids), and iron content. In general, the impacts on DM production and chemical-bromatological composition were lower in A. catharinensis cv. SCS 315 Catarina when compared to the Cynodon species, possibly because A. catharinensis has higher tillering capacity and does not show a reduction in the photosynthetic pigments, which may act as compensating factors to D. flexuosa damage. Our results demonstrate that the A. catharinensis cultivar expresses tolerance-type resistance to D. flexuosa and constitutes an interesting option for pasturelands formation and diversification where this spittlebug species is an emerging pest.
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Affiliation(s)
- Leandro do Prado Ribeiro
- Agricultural Research and Rural Extension Company of Santa Catarina, Research Center for Family Agriculture (CEPAF/EPAGRI), Chapecó, Santa Catarina, Brazil.
| | | | - Adriana Lídia Santana Klock
- Agricultural Research and Rural Extension Company of Santa Catarina, Research Center for Family Agriculture (CEPAF/EPAGRI), Chapecó, Santa Catarina, Brazil
| | - Cristiano Nunes Nesi
- Agricultural Research and Rural Extension Company of Santa Catarina, Research Center for Family Agriculture (CEPAF/EPAGRI), Chapecó, Santa Catarina, Brazil
| | - Ângela Fonseca Rech
- Agricultural Research and Rural Extension Company of Santa Catarina, Lages Experimental Station (EPAGRI/EELages), Lages, Santa Catarina, Brazil
| | - Edson Luiz Lopes Baldin
- School of Agriculture, Dep of Crop Protection, São Paulo State Univ (FCA/UNESP), Botucatu, São Paulo, Brazil
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Lee PA, Scotty Yang CC, Saska P, Tang CK, Güncan A, Lin YY, Tuan SJ. Demographic Characteristics and Population Simulation of Newly Invasive Fall Armyworm on Arachis hypogaea (Fabales: Fabaceae) and Dominant Green Manure Plant in Taiwan. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:1146-1155. [PMID: 35767284 DOI: 10.1093/jee/toac094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Indexed: 06/15/2023]
Abstract
Spodoptera frugiperda (J.E. Smith) is a severe and fast-spreading pest of numerous agro-economic crops, including miscellaneous, vegetables, and green manure crops. Understanding pest ecology represents a core component in integrated pest management decision-making. In Taiwan, peanut (Arachis hypogaea L.) is an important miscellaneous crop, whereas sesbania (Sesbania roxburghii Merr.) is the most frequently used green manure crop. To improve the S. frugiperda management in Taiwan, the demographic characteristics and population simulation of this pest reared on peanut and sesbania leaves were analyzed using the age-stage, two-sex life table theory. The intrinsic rate of increase, finite rate of increase, and net reproductive rate of S. frugiperda were higher when reared on peanut (0.1625 d-1, 1.1764 d-1, 264.9 offspring) than on sesbania (0.0951 d-1, 1.0997 d-1, and 30.3 offspring). Population projection of S. frugiperda on peanut demonstrated that this crop is a more suitable host plant than sesbania. Yet, this suboptimal host still assures an increasing trend of more than 357-fold individuals in 75 d, from the initial cohort of 10 eggs. Our data suggest that green manure plants in fallowing fields may support the pest's survival all year round, and may be responsible for a successful establishment and unexpected outbreaks of this invasive pest on the neighboring crops in Taiwan. Our study thus highlights the importance of assessing the population dynamics and areawide pest management of an invasive polyphagous pest on a noneconomic crop to mitigate the potential risk of reinfestation and thus outbreaks.
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Affiliation(s)
- Pei-An Lee
- Department of Entomology, National Chung-Hsing University, Taichung 402, ROC, Taiwan
| | - Chin-Cheng Scotty Yang
- Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Pavel Saska
- Crop Research Institute, Group Functional Diversity of Invertebrates and Plants in Agroecosystems, Prague 6 - Ruzyne, Czech Republic
| | - Cheng-Kang Tang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institute, Miaoli County 350, ROC, Taiwan
| | - Ali Güncan
- Department of Plant Protection, Faculty of Agriculture, Ordu University, Ordu 52200, Turkey
| | - Ya-Ying Lin
- Department of Entomology, National Chung-Hsing University, Taichung 402, ROC, Taiwan
| | - Shu-Jen Tuan
- Department of Entomology, National Chung-Hsing University, Taichung 402, ROC, Taiwan
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Souza CSF, Souza BHS, Parrella RAC, Simeone MLF, Nascimento PT, França JCO, Lima PF, Mendes SM. Resistance of bmr energy sorghum hybrids to sugarcane borer and fall armyworm. BRAZ J BIOL 2021; 84:e251883. [PMID: 34852137 DOI: 10.1590/1519-6984.251883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 08/26/2021] [Indexed: 11/22/2022] Open
Abstract
The lower lignin content in plants species with energy potential results in easier cellulose breakdown, making glucose available for ethanol generation. However, higher lignin levels can increase resistance to insect attack. The objective of this work was to evaluate the susceptibility of a bmr-6 biomass sorghum (a mutant genotype with a lower concentration of lignin) to important pests of energy sorghum, Diatraea saccharalis and Spodoptera frugiperda. Experiments were performed in the laboratory and greenhouse to evaluate the development of these pests on the biomass sorghum bmr hybrids BR007, BR008, and TX635 and their respective conventional near-isogenic genotypes (without the bmr gene). The lignin content was higher in non-bmr hybrids, but the evaluated insect variables varied between treatments, not being consistent in just one hybrid or because it is bmr or not. The lowest survival of S. frugiperda was observed in the BR008 hybrid, both bmr and non-bmr. The S. frugiperda injury scores on plants in the greenhouse were high (>7) in all treatments. For D. saccharalis, there was no difference in larval survival in the laboratory, but in the greenhouse, the BR007 hybrid, both bmr and non-bmr, provided greater survival. Due the need to diversify the energy matrix and the fact that greater susceptibility of the bmr hybrids to either pests was not found in this study, these results hold promise for cultivation of these biomass sorghum hybrids for the production of biofuels.
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Affiliation(s)
- C S F Souza
- Universidade Federal de Lavras, Campus Universitário, Departament of Entomology, Lavras, MG, Brasil
| | - B H S Souza
- Universidade Federal de Lavras, Campus Universitário, Departament of Entomology, Lavras, MG, Brasil
| | | | | | - P T Nascimento
- Universidade Federal de Lavras, Campus Universitário, Departament of Entomology, Lavras, MG, Brasil
| | - J C O França
- Universidade Federal de Lavras, Campus Universitário, Departament of Entomology, Lavras, MG, Brasil
| | - P F Lima
- Universidade Federal de São João Del Rei, Campus de Sete Lagoas, Sete Lagoas, MG, Brasil
| | - S M Mendes
- Embrapa Milho e Sorgo, Sete Lagoas, MG, Brasil
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