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Lenné J, Wood D. Crop Diversity in Agroecosystems for Pest Management and Food Production. PLANTS (BASEL, SWITZERLAND) 2024; 13:1164. [PMID: 38674573 PMCID: PMC11053515 DOI: 10.3390/plants13081164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/19/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024]
Abstract
During the past 30 years, there has been a growing belief in and promotion of agroecosystem diversity for pest management and future food production as an agroecological or nature-based approach. Monoculture agriculture, which produces most of our food, is considered to be highly vulnerable to pests in contrast to plant species-diverse agroecosystems which may possess a greater abundance of natural enemies, keeping pest populations under control. In this paper, we question the role of crop diversity for pest management and explore the relationship between crop and associated diversity and pests through the following processes: environmental stresses that favor monodominance; evolutionary adaptations that resist insect herbivores (genetic resistance response); mechanisms of spatial escape from insect herbivores (escape response); and the role of crop-associated biodiversity. We present strong evidence that not only questions the high vulnerability of monocultures to pest damage but also supports why monocultures continue to produce most of the world's food. Reference is made to the importance of targeted plant breeding and the role of trans-continental crop introduction supported by efficient quarantine for pest management. We conclude that-with the exception of irrigated rice-much more research is needed to better understand the role of crop diversity in agroecosystems for pest management and food production.
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de Lima AK, Soares JJ, Soares MA, Zanuncio JC, Bicho CDL, da Silva CAD. Development, Survival and Reproduction of Nezara viridula (Hemiptera: Pentatomidae) in Sesame Cultivars and Implications for the Management. PLANTS (BASEL, SWITZERLAND) 2024; 13:1060. [PMID: 38674469 PMCID: PMC11054687 DOI: 10.3390/plants13081060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/26/2024] [Accepted: 03/29/2024] [Indexed: 04/28/2024]
Abstract
Sesame, an oilseed plant with multiple applications, is susceptible to infestations by the stink bug Nezara viridula (Linnaeus, 1758) (Hemiptera: Pentatomidae). This pest suctions the seeds of this plant and injects toxins into them. Possible sources of resistance on sesame cultivars are important to manage this bug. The objective of this study was to evaluate the biological aspects of N. viridula fed on three sesame cultivars aiming to select possible resistance sources for integrated pest management (IPM) programs of this stinkbug. The experimental design used randomized blocks with three treatments and four replications, each with newly emerged N. viridula nymphs fed with sesame capsules of the cultivars BRS Anahí (T1), BRS Morena (T2) and BRS Seda (T3). Two to three green sesame capsules were supplied every two days per group of ten N. viridula nymphs as one replication until the beginning of the adult stage. Adults of this stinkbug were fed in the same manner as its nymphs but with mature sesame capsules until the end of the observations. Survival during each of the five instars and of the nymph stage of N. viridula with green sesame capsules was similar between cultivars, but the duration of the nymph stage was shorter with green capsules of the BRS Morena than with those of the BRS Anahí. The oviposition period, number of egg masses and eggs per female, and the percentage of nymphs hatched were higher with mature capsules of the sesame cultivar BRS Anahí and lower with the others. Nymphs did not hatch from eggs deposited by females fed mature seed capsules of the sesame cultivar BRS Morena, which may indicate a source of resistance against this stinkbug in this cultivar. The worldwide importance of N. viridula to sesame cultivation makes these results useful for breeding programs of this plant aiming to develop genotypes resistant to this bug. In addition, the BRS Morena is a cultivar already commercially available and can be recommended in places where there is a history of incidence of N. viridula, aiming to manage the populations of this pest.
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Affiliation(s)
- Adrielly Karoliny de Lima
- Departamento de Ciências Biológicas, Universidade Estadual da Paraíba, Avenida das Baraúnas, 351, Campina Grande 58429-500, PB, Brazil; (A.K.d.L.); (C.d.L.B.)
| | - José Janduí Soares
- Embrapa Algodão, Rua Oswaldo Cruz, 1143, Campina Grande 58428-095, PB, Brazil;
| | - Marcus Alvarenga Soares
- Departamento de Agronomia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina 39100-000, MG, Brazil;
| | - José Cola Zanuncio
- Departamento de Entomologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil;
| | - Carla de Lima Bicho
- Departamento de Ciências Biológicas, Universidade Estadual da Paraíba, Avenida das Baraúnas, 351, Campina Grande 58429-500, PB, Brazil; (A.K.d.L.); (C.d.L.B.)
| | - Carlos Alberto Domingues da Silva
- Departamento de Ciências Biológicas, Universidade Estadual da Paraíba, Avenida das Baraúnas, 351, Campina Grande 58429-500, PB, Brazil; (A.K.d.L.); (C.d.L.B.)
- Embrapa Algodão, Rua Oswaldo Cruz, 1143, Campina Grande 58428-095, PB, Brazil;
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Wang FH, Han LY, Jiang QP, Jiao P, Liu JQ, Liu SY, Guan SY, Ma YY. Functional analysis of transgenic cry1Ah-1 maize. Microb Pathog 2023; 185:106455. [PMID: 37995881 DOI: 10.1016/j.micpath.2023.106455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023]
Abstract
Maize is an important food crop in the world, but the yield and quality of maize have been significantly reduced due to the impact of insect pests. In order to address this issue, the cry1Ah gene was subjected to error-prone PCR for mutagenesis, and subsequently, the mutant cry1Ah-1 gene was introduced into maize inbred line GSH9901 callus using the Agrobacterium-mediated method. The T2 generation transformed plants were obtained by subculture, and 9 transgenic positive plants were obtained by molecular detection which was carried out by PCR, qRT-PCR, Bt gold-labeled immunoassay test strips, Western blot and ELISA. It was found that the Cry1Ah-1 gene could be transcribed normally in maize leaves, of which OE1 and OE3 had higher relative expression levels and could successfully express proteins of 71.94 KD size. They were expressed in different tissues at the 6-leaf stage, heading stage and grain-filling stage, and could ensure the protection of maize from corn borer throughout the growth period. The biological activities of OE1 and OE3 were tested indoors and in the field, and the results showed that in indoors, the corn borer that fed on OE1 and OE3 corn leaves had a mortality rate of 100 % after 3 days; in the field, OE1 and OE3 had strong insecticidal activity against corn borer, reaching a high resistance level. In conclusion, the transgenic cry1Ah-1 maize has a strong insecticidal effect on corn borer, and has a good prospect of commercialization.
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Affiliation(s)
- Fan-Hao Wang
- College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China; Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, 130118, China
| | - Li-Yuan Han
- College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China; Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, 130118, China
| | - Qing-Ping Jiang
- College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China; Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, 130118, China
| | - Peng Jiao
- College of Life Sciences, Jilin Agricultural University, Changchun, 130118, China; Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, 130118, China
| | - Jia-Qi Liu
- College of Agronomy, Jilin Agricultural University, Changchun, 130118, China; Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, 130118, China
| | - Si-Yan Liu
- College of Agronomy, Jilin Agricultural University, Changchun, 130118, China; Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, 130118, China
| | - Shu-Yan Guan
- College of Agronomy, Jilin Agricultural University, Changchun, 130118, China; Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, 130118, China.
| | - Yi-Yong Ma
- College of Agronomy, Jilin Agricultural University, Changchun, 130118, China; Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Changchun, 130118, China.
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Uthirapathy P, Marimuthu M, Venkatasamy B, Kannan S, Boopathi NM, Selladurai HR, Nallathambi P. Categories of resistance in cotton genotypes, Gossypium spp. against cotton-melon aphid, Aphis gossypii (Hemiptera: Aphididae). JOURNAL OF ECONOMIC ENTOMOLOGY 2023; 116:1411-1422. [PMID: 37417370 DOI: 10.1093/jee/toad136] [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: 01/07/2023] [Revised: 06/14/2023] [Accepted: 06/29/2023] [Indexed: 07/08/2023]
Abstract
Cotton-melon aphid, Aphis gossypii Glover (Hemiptera: Aphididae), is emerging as a potential threat to cotton cultivation worldwide. The resistance categories in Gossypium arboreum to A. gossypii still need to be explored. We screened 87 G. arboreum and 20 Gossypium hirsutum genotypes against aphids under natural field conditions. Twenty-six selected genotypes from these 2 species were tested under glasshouse conditions for resistance categories (antixenosis, antibiosis, and tolerance). Resistance categories were assessed by no-choice antibiosis assay, free-choice aphid settling assay, cumulative aphid days using population buildup tests, chlorophyl loss index, and damage ratings. No-choice antibiosis experiment revealed that the G. arboreum genotypes GAM156, PA785, CNA1008, DSV1202, FDX235, AKA2009-6, DAS1032, DHH05-1, GAM532, and GAM216 had a significant adverse effect on aphid development time, longevity, and fecundity. Gossypium arboreum genotypes CISA111 and AKA2008-7 expressed a low level of antixenosis but possessed antibiosis and tolerance. Aphid resistance persisted uniformly at different plant developmental stages studied. The chlorophyl loss percentage and damage rating scores were lower in G. arboreum than in G. hirsutum genotypes, indicating the existence of tolerance in G. arboreum to aphids. Logical relations analysis of resistance contributing factors depicted the presence of antixenosis, antibiosis, and tolerance in the G. arboreum genotypes PA785, CNA1008, DSV1202, and FDX235, indicating their utility for evaluating the mechanisms of resistance and aphid resistance introgression breeding into G. hirsutum to develop commercially cultivated cotton lines.
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Affiliation(s)
- Pirithiraj Uthirapathy
- Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Lawley Road, Coimbatore 641 003, Tamil Nadu, India
| | - Murugan Marimuthu
- Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Lawley Road, Coimbatore 641 003, Tamil Nadu, India
| | - Balasubramani Venkatasamy
- Department of Agricultural Entomology, Controllerate of Examinations, Tamil Nadu Agricultural University, Lawley Road, Coimbatore 641 003, Tamil Nadu, India
| | - Senguttuvan Kannan
- Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Lawley Road, Coimbatore 641 003, Tamil Nadu, India
| | - N Manikanda Boopathi
- Department of Plant Biotechnology, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Lawley Road, Coimbatore 641 003, Tamil Nadu, India
| | - Hari Ramakrishnan Selladurai
- Department of Genetics and Plant Breeding, Tamil Nadu Agricultural University, Agricultural Research Station, Kovilpatti, Thoothukudi 628 501, Tamil Nadu, India
| | - Premalatha Nallathambi
- Department of Cotton, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Lawley Road, Coimbatore 641 003, Tamil Nadu, India
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Yang J, Zhang H, Chen H, Sun Z, Ke H, Wang G, Meng C, Wu L, Zhang Y, Wang X, Ma Z. Genome-wide association study reveals novel SNPs and genes in Gossypium hirsutum underlying Aphis gossypii resistance. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:171. [PMID: 37420143 DOI: 10.1007/s00122-023-04415-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 06/23/2023] [Indexed: 07/09/2023]
Abstract
A. gossypii resistance showed great variability in G. hirsutum varieties. One hundred and seventy-six SNPs associated with A. gossypii resistance were identified using GWAS. Four candidate resistance genes were functionally validated. Aphis gossypii is an economically important sap-feeding pest and is widely distributed in the world's cotton-producing regions. Identification of cotton genotypes and developing cultivars with improved A. gossypii resistance (AGR) is essential and desirable for sustainable agriculture. In the present study, A. gossypii was offered no choice but to propagate on 200 Gossypium hirsutum accessions. A relative aphid reproduction index (RARI) was used to evaluate the AGR, which showed large variability in cotton accessions and was classified into 6 grades. A significantly positive correlation was found between AGR and Verticillium wilt resistance. A total of 176 SNPs significantly associated with the RARI were identified using GWAS. Of these, 21 SNPs could be repeatedly detected in three replicates. Cleaved amplified polymorphic sequence, a restriction digestion-based genotyping assay, was developed using SNP1 with the highest observed -log10(P-value). Four genes within the 650 kb region of SNP1 were further identified, including GhRem (remorin-like), GhLAF1 (long after far-red light 1), GhCFIm25 (pre-mRNA cleavage factor Im 25 kDa subunit) and GhPMEI (plant invertase/pectin methylesterase inhibitor superfamily protein). The aphid infection could induce their expression and showed a significant difference between resistant and susceptible cotton varieties. Silencing of GhRem, GhLAF1 or GhCFIm25 could significantly increase aphid reproduction on cotton seedlings. Silencing of GhRem significantly reduced callose deposition, which is reasonably believed to be the cause for the higher AGR. Our results provide insights into understanding the genetic regulation of AGR in cotton and suggest candidate germplasms, SNPs and genes for developing cultivars with improved AGR.
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Affiliation(s)
- Jun Yang
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Huimin Zhang
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Haonan Chen
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Zhengwen Sun
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Huifeng Ke
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Guoning Wang
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Chengsheng Meng
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Liqiang Wu
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Yan Zhang
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Xingfen Wang
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Zhiying Ma
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding, 071001, Hebei, China.
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Salazar B, Ortiz A, Keswani C, Minkina T, Mandzhieva S, Pratap Singh S, Rekadwad B, Borriss R, Jain A, Singh HB, Sansinenea E. Bacillus spp. as Bio-factories for Antifungal Secondary Metabolites: Innovation Beyond Whole Organism Formulations. MICROBIAL ECOLOGY 2023; 86:1-24. [PMID: 35604432 DOI: 10.1007/s00248-022-02044-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Several fungi act as parasites for crops causing huge annual crop losses at both pre- and post-harvest stages. For years, chemical fungicides were the solution; however, their wide use has caused environmental contamination and human health problems. For this reason, the use of biofungicides has been in practice as a green solution against fungal phytopathogens. In the context of a more sustainable agriculture, microbial biofungicides have the largest share among the commercial biocontrol products that are available in the market. Precisely, the genus Bacillus has been largely studied for the management of plant pathogenic fungi because they offer a chemically diverse arsenal of antifungal secondary metabolites, which have spawned a heightened industrial engrossment of it as a biopesticide. In this sense, it is indispensable to know the wide arsenal that Bacillus genus has to apply these products for sustainable agriculture. Having this idea in our minds, in this review, secondary metabolites from Bacillus having antifungal activity are chemically and structurally described giving details of their action against several phytopathogens. Knowing the current status of Bacillus secreted antifungals is the base for the goal to apply these in agriculture and it is addressed in depth in the second part of this review.
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Affiliation(s)
- Bruno Salazar
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México
| | - Aurelio Ortiz
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México
| | - Chetan Keswani
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
| | - Saglara Mandzhieva
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
| | - Satyendra Pratap Singh
- Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Bhagwan Rekadwad
- Division of Microbiology and Biotechnology, Yenepoya Research Centre, Yenepoya (Deemed to Be University), Mangalore, 575018, Karnataka, India
| | - Rainer Borriss
- Institut Für Agrar- Und Gartenbauwissenschaften, Fachgebiet Phytomedizin, Humboldt-Universität Zu Berlin, Lentze-Allee 55-57, 14195, Berlin, Germany
| | - Akansha Jain
- Division of Plant Biology, Bose Institute, CIT Road, Kankurgachi, Kolkata, India
| | - Harikesh B Singh
- Department of Biotechnology, GLA University, Mathura, 281406, India
| | - Estibaliz Sansinenea
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México.
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Araújo MF, Castanheira EMS, Sousa SF. The Buzz on Insecticides: A Review of Uses, Molecular Structures, Targets, Adverse Effects, and Alternatives. Molecules 2023; 28:molecules28083641. [PMID: 37110875 PMCID: PMC10144373 DOI: 10.3390/molecules28083641] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Insecticides play a critical role in controlling the spread of insect-borne diseases and preserving crop health. These chemical substances are specifically formulated to kill or manage insect populations. Over the years, various types of insecticides have been developed, including organophosphates, carbamates, pyrethroids, and neonicotinoids, each with unique modes of action, physiological targets, and efficacy. Despite the advantages that insecticides offer, it is imperative to recognize the potential consequences on non-target species, the environment, and human health. It is therefore crucial to follow recommended label instructions and employ integrated pest management practices for the judicious use of insecticides. This review article provides an in-depth examination of the various types of insecticides, including their modes of action, physiological targets, environmental and human health impacts, and alternatives. The aim is to furnish a comprehensive overview of insecticides and to emphasize the significance of responsible and sustainable utilization.
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Affiliation(s)
- Maria F Araújo
- UCIBIO/REQUIMTE, BioSIM-Department of Medicine, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - Elisabete M S Castanheira
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Associate Laboratory LaPMET, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Sérgio F Sousa
- UCIBIO/REQUIMTE, BioSIM-Department of Medicine, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
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Mutschler MA, Kennedy GG, Ullman DE. Acylsugar-mediated resistance as part of a multilayered defense against thrips, orthotospoviruses, and beyond. CURRENT OPINION IN INSECT SCIENCE 2023; 56:101021. [PMID: 36925103 DOI: 10.1016/j.cois.2023.101021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/26/2023] [Accepted: 03/02/2023] [Indexed: 05/03/2023]
Abstract
Resistant varieties are critical tools for crop production, and single-resistance genes providing strong protection against pests or pathogens are deployed in agriculture. Durability of these traits is threatened by emergence of resistance-breaking pests and pathogens. This review focuses on acylsugar-mediated resistance in tomato. Wild tomatoes have type-IV trichomes that exude chemically complex mixtures of acylsugars altering behavior and suppressing multiple pest species, and with thrips and whiteflies (WF), suppressing virus transmission, for example, Tomato spotted wilt orthotospovirus and Tomato yellow leaf curl virus, respectively. Marker-assisted selection and bioassays led to development of advanced cultivated tomato breeding lines rich in acylsugar variations, allowing acylsugar-mediated resistance to be combined with other resistance traits providing a layered defense system that reduces pest populations and virus disease prevalence. This strategy also holds promise for enhancing durability of virus resistance genes by reducing the intensity of selection for resistance-breaking variants.
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Volp TM, Zalucki MP, Furlong MJ. Helicoverpa armigera preference and performance on three cultivars of short-duration pigeonpea (Cajanus cajan): the importance of whole plant assays. PEST MANAGEMENT SCIENCE 2023; 79:627-637. [PMID: 36222835 PMCID: PMC10092315 DOI: 10.1002/ps.7230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/06/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Helicoverpa armigera is a major pest of pigeonpea (Cajanus cajan). Efforts to develop pigeonpea varieties resistant to H. armigera attack have been met with limited success, despite reports of high levels of resistance to H. armigera in wild relatives of pigeonpea and reports of low to moderate levels of resistance in cultivated varieties. Here we examined H. armigera oviposition preference and larval performance on whole plants of three cultivars of short-duration pigeonpea: a susceptible control (ICPL 87) and two cultivars with purported host-plant resistance (ICPL 86012 and ICPL 88039). RESULTS In our no-choice oviposition experiment, H. armigera laid similar numbers of eggs on all three cultivars tested, but under choice conditions moths laid slightly more eggs on ICPL 88039. Larval growth and development were affected by cultivar, and larvae grew to the largest size (weight) and developed fastest on ICPL 86012. Moths laid most of their eggs on floral structures, sites where subsequent early instar larvae overwhelmingly fed. Experimentally placing neonate larvae at different locations on plants demonstrated that larvae placed on flowers experienced greater survival, faster development, and greater weight gain than those placed on leaves. The type and density of trichomes (a potential resistance trait) differed among cultivars and plant structures, but larvae selected to feed at sites where trichomes were absent. CONCLUSION Future work examining host-plant resistance against H. armigera should incorporate the behavioural preference of moths and larvae in experiments using whole plants as opposed to bioassays of excised plant parts in Petri dishes. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Trevor M. Volp
- School of Biological SciencesThe University of QueenslandSt LuciaAustralia
- Department of Agriculture and FisheriesAgri‐Science QueenslandToowoombaAustralia
| | - Myron P. Zalucki
- School of Biological SciencesThe University of QueenslandSt LuciaAustralia
| | - Michael J. Furlong
- School of Biological SciencesThe University of QueenslandSt LuciaAustralia
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Hu XS, Li JW, Peng JF, Wang H, Yan FY, Zhou ZF, Zhang ZF, Zhao HY, Feng Y, Liu TX. Effects of Crop Resistance on the Tritrophic Interactions between Wheat Lines, Schizaphis graminum (Hemitera: Aphididae), and Propylaea japonica (Coleoptera: Coccinellidae). PLANTS (BASEL, SWITZERLAND) 2022; 11:2754. [PMID: 36297778 PMCID: PMC9611035 DOI: 10.3390/plants11202754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/02/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Crop resistance and biological control are both considered efficient and environmentally friendly methods of sustainable pest control. In this study, we aimed at investigating the direct influence of four wheat lines with varying resistance level on the life-history traits of the greenbug, Schizaphis graminum, and the mediational effect on the functional response of a predatory ladybird, Propylaea japonica, under laboratory conditions. Results showed that the aphid fitness was the lowest for aphids that had been feeding on wheat line '98-10-19' for one year. These aphids had the longest development time, and least adult mass, minimal mean relative growth rate, and lowest reproductive fitness. In contrast, the aphids that fed on wheat line '98-10-30' were the fittest, with the shortest development time and highest levels of reproductive fitness. The predatory activities of the ladybeetle, especially the adult male significantly decreased following the consumption of aphids belonging to the '98-10-19'-acclimated population. However, there were no significant differences in predatory efficiency (net attack frequency) among the four aphid acclimated populations. Our results showed that the wheat line '98-10-19' has a relative higher resistance to S. graminum than the other three wheat lines, which could further decrease the amount of prey available for consumption. However, the ecological effect of the resistance of '98-10-19' to S. graminum posed no negative influence on the biocontrol potential of P. japonica to these aphids, as their predatory efficiency increases at the fourth instar larvae phase.
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Affiliation(s)
- Xiang-Shun Hu
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Jing-Wen Li
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Jing-Feng Peng
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Han Wang
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Fan-Ye Yan
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Zi-Fang Zhou
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Zhan-Feng Zhang
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Hui-Yan Zhao
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Yi Feng
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
| | - Tong-Xian Liu
- State Key Laboratory for Crop Stress Biology in Arid Areas and Key Laboratory of Crop Pest Management on the Northwest Loess Plateau, Ministry of Agriculture, College of Plant Protection, Northwest A&F University, Xianyang 712100, China
- College of Agriculture, Guizhou University, Guiyang 550025, China
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11
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Molecular Breeding to Overcome Biotic Stresses in Soybean: Update. PLANTS 2022; 11:plants11151967. [PMID: 35956444 PMCID: PMC9370206 DOI: 10.3390/plants11151967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/16/2022] [Accepted: 07/25/2022] [Indexed: 11/17/2022]
Abstract
Soybean (Glycine max (L.) Merr.) is an important leguminous crop and biotic stresses are a global concern for soybean growers. In recent decades, significant development has been carried outtowards identification of the diseases caused by pathogens, sources of resistance and determination of loci conferring resistance to different diseases on linkage maps of soybean. Host-plant resistance is generally accepted as the bestsolution because of its role in the management of environmental and economic conditions of farmers owing to low input in terms of chemicals. The main objectives of soybean crop improvement are based on the identification of sources of resistance or tolerance against various biotic as well as abiotic stresses and utilization of these sources for further hybridization and transgenic processes for development of new cultivars for stress management. The focus of the present review is to summarize genetic aspects of various diseases caused by pathogens in soybean and molecular breeding research work conducted to date.
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12
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Rivero RM, Mittler R, Blumwald E, Zandalinas SI. Developing climate-resilient crops: improving plant tolerance to stress combination. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 109:373-389. [PMID: 34482588 DOI: 10.1111/tpj.15483] [Citation(s) in RCA: 122] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/22/2021] [Accepted: 08/31/2021] [Indexed: 05/21/2023]
Abstract
Global warming and climate change are driving an alarming increase in the frequency and intensity of different abiotic stresses, such as droughts, heat waves, cold snaps, and flooding, negatively affecting crop yields and causing food shortages. Climate change is also altering the composition and behavior of different insect and pathogen populations adding to yield losses worldwide. Additional constraints to agriculture are caused by the increasing amounts of human-generated pollutants, as well as the negative impact of climate change on soil microbiomes. Although in the laboratory, we are trained to study the impact of individual stress conditions on plants, in the field many stresses, pollutants, and pests could simultaneously or sequentially affect plants, causing conditions of stress combination. Because climate change is expected to increase the frequency and intensity of such stress combination events (e.g., heat waves combined with drought, flooding, or other abiotic stresses, pollutants, and/or pathogens), a concentrated effort is needed to study how stress combination is affecting crops. This need is particularly critical, as many studies have shown that the response of plants to stress combination is unique and cannot be predicted from simply studying each of the different stresses that are part of the stress combination. Strategies to enhance crop tolerance to a particular stress may therefore fail to enhance tolerance to this specific stress, when combined with other factors. Here we review recent studies of stress combinations in different plants and propose new approaches and avenues for the development of stress combination- and climate change-resilient crops.
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Affiliation(s)
- Rosa M Rivero
- Department of Plant Nutrition, Campus Universitario de Espinardo, CEBAS-CSIC, Ed 25, Espinardo, Murcia, 30100, Spain
| | - Ron Mittler
- Division of Plant Sciences and Interdisciplinary Plant Group, College of Agriculture, Food and Natural Resources, Christopher S. Bond Life Sciences Center, University of Missouri, 1201 Rollins Street, Columbia, MO, 65201, USA
| | - Eduardo Blumwald
- Department of Plant Sciences, University of California, 1 Shields Avenue, Davis, CA, 95616, USA
| | - Sara I Zandalinas
- Division of Plant Sciences and Interdisciplinary Plant Group, College of Agriculture, Food and Natural Resources, Christopher S. Bond Life Sciences Center, University of Missouri, 1201 Rollins Street, Columbia, MO, 65201, USA
- Departamento de Ciencias Agrarias y del Medio Natural, Universitat Jaume I, Av. de Vicent Sos Baynat, s/n, Castelló de la Plana, 12071, Spain
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13
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Michel A, Harris M. Editorial overview: Why modern research justifies the re-emergence of host-plant resistance as a focus for pest management. CURRENT OPINION IN INSECT SCIENCE 2021; 45:iii-v. [PMID: 34303486 DOI: 10.1016/j.cois.2021.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Andy Michel
- Department of Entomology, The Ohio State University, United States.
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