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Advances in research of induced resistance to insects in cotton

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Frontiers in Biology 2009年第3期4卷 289-297页

作者： Xiaonan TI Qunchi ZHANG Laboratory of Chemical Biology College of Chemical EngineeringXinjiang Agricultural UniversityUrumqi 830052China

Any change in a plant that occurs following herbivory or environmental factors is an induced *** changes include phytochemical induction,increases in physical defenses,emission of volatiles that attract predators and parasitoids of herbivores,and reduction in plant nutritional quality for herbivores,which is termed induced *** resistance has been demonstrated ubiquitously in *** is one of our goals to review what is known about the induced resistance to herbivorous insects in cotton,including three resistance secondary metabolites(terpenoid,tannin,and flavonoids)that are contained at any significant levels of resistance to herbivorous insects in cotton *** many cases,the quantities or quality of secondary metabolites in plant are changed after attacked by *** review focuses on induced plant resistance as quantitative or qualitative enhancement of defense mechanism against insect pests,especially on the abiotic-elicitors-induced resistance in cotton *** abiotic-elicitor of cupric chloride,an exogenous inorganic compound,may induce the secondary metabolites accumulation and is referred to as a copperinducible elicitor(CIE).Finally,we discuss how copperinducible elicitor may be used in the Integrated Pest Management(IPM)system for cotton resistance control.

关键词： induced resistance secondary metabolites abiotic elicitor herbivorous insect cotton cultivates

Alternaria toxin-induced resistance in rose plants against rose aphid(Macrosiphum rosivorum): effect of tenuazonic acid

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2015年第4期16卷 264-274页

作者： Fa-zhong YANG Bin YANG Bei-bei LI Chun XIAO School of Plant Protection Yunnan Agricultural University Key Laboratory of Forest Disaster Warning and Control of Yunnan Province Southwest Forestry University

Many different types of toxins are produced by the fungus, Alternaria alternata （Fr.） Keissler. Little is known, however, regarding the influence of these toxins on insects. In this study, we investigated the toxin-induced inhibitory effects of the toxin produced by A. alternata on the rose aphid, Macrosiphum rosivorum, when the toxin was applied to leaves of the rose, Rosa chinensis. The results demonstrated that the purified crude toxin was non-harmful to rose plants and rose aphids, but had an intensive inhibitory effect on the multiplication of aphids. The inhibitory index against rose aphids reached 87.99% when rose plants were sprayed with the toxin solution at a low concentration. Further results from bioassays with aphids and high performance liquid chromatography （HPLC） analyses demon- strated that tenuazonic acid （TEA） was one of the most important resistance-related active components in the crude toxin. The content of TeA was 0.1199% in the crude toxin under the HPLC method. Similar to the crude toxin, the inhibitory index of pure TeA reached 83.60% 15 d after the rose plants were sprayed with pure TeA solution at the lower concentration of 0.060 IJg/ml, while the contents of residual TeA on the surface and in the inner portion of the rose plants were only 0.04 and 0.00 ng/g fresh weight of TeA-treated rose twigs, respectively, 7 d after the treatment. Our results show that TeA, an active component in the A. alternata toxin, can induce the indirect plant-mediated re- sponses in rose plants to intensively enhance the plant＇s resistances against rose aphids, and the results are very helpful to understand the plant-mediated interaction between fungi and insects on their shared host plants.

关键词： Toxin induced resistance Fungus-plant-insect system Plant-mediated interaction Tenuazonic acid Alternaria altemata Macrosiphum rosivorum

Different Proteomics of Ca^(2+) on SA-induced resistance to Botrytis cinerea in Tomato

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Horticultural Plant Journal 2016年第3期2卷 154-162页

作者： LI Linlin GUO Peng JIN Hua LI Tianlai College of Environment and Resource Dalian Nationaltities University College of Horticuture Shenyang Agriculture University

This study aims to comprehensively study the effects of Ca^(2+) on the SA-induced resistance Botrytis cinerea in tomato through proteomics analysis.A proteomic approach was used to uncover the inducible proteins of tomato in the susceptible tomato cultivars ‘L402' against Botrytis cinerea after salicylic acid(SA) and a combination treatment of CaCl_2 and *** results showed that the use of combination treatment of CaCl_2 and SA significantly enhanced tomato resistance against Botrytis *** total,46 differentially expressed protein spots from 2-DE gel maps were detected,of which 41 were identified by mass *** the identified proteins were categorized into eight groups according to their putative functions:defense response(14.00%),antioxidative protein(9.75%),photosynthesis(24.39%),molecular chaperone(4.88%),energy(17.01%),metabolism(21.95%),protein synthesis(4.88%) and signal transduction(0.2%).Of the proteins in the eight function groups,the effect of stress/defense and reactive oxygen species on Ca^(2+) -regulated SA-induced resistance may be the most important one in induced resistance by *** expression level of pathogenesis-related proteins(PRs) and chitinase was upregulated by a combination treatment of CaCl_2 and *** characterization of these proteins greatly helped to reveal the induced proteins involved in the regulation of Ca^(2+) on SA-induced resistance to Botrytis *** the combination treatment of CaCl_2 and SA,the defense response and antioxidative protein were clearly upregulated much more than SA alone or the control treatment by the method of proteomics and *** present findings suggest that susceptible tomato cultivars treated by the combination treatment of CaCl_2 and SA might possess a more sensitive SA signaling system or effective pathway than SA treatment *** addition,results indicated that SA could coordinate other cellular activities linked with photosynthesis and metabolism to facilitate defense

关键词： tomato calcium salicylic acid Botrytis cinerea proteomic induced resistance

Preliminary Studies on induced resistance of Cucumber to Downy Mildew

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Journal of Northeast Agricultural University(English Edition) 1996年第2期3卷 117-120页

作者： Wen Jingzhi, Yang Jianhua(Northeast Agricultural Vniversity, Harbin 150030. P R C) NortheastAgriculturaluniversity Harbin150030PRC

1 mL of sporangial suspensions (5 x 10 5spporangia per milliliter) of Pseudoperonospora cubensis was droplet-inoculated on the surface of the second leaf of the plant grown in greenhouse ( inducing inoculatoin), then the lower surfaces of the third, the forth and the fifth leaves were uniformly sprayed with inoculum of the same fungi (5 x 10 4sporangia per milliliter, about 5 mL per plant) every 3 days interval (challenge inoculation). Plants were moistened at 18- 22 C for 18 h, then kept at room temperature (24 - 28 C) and supplemented with cool-white fluorescent lights. All three challenge leaves were collected after 7 days of challenge to measure the amount of sporulation and area of necrosis. Plants prior inoculated with P. cubensis were protected 38% (based on the area of necrosis) against disaesc caused by subsequent foliar challenge with the pathogen. Protective action was about 12% after 3 days, and maintained this level until 9 days, suddenly reached 34% after 12 days, and came to a maximum after 15 days, then dropped down slowly.

关键词： cucumber induced resistance downy mildew

Evaluation of Selected Chemical,Biological Fungicides,and induced resistance to Control White Rot(Sclerotium rolfsii Sacc.)on Tomato

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Journal of Environmental Science and Engineering(A) 2022年第2期11卷 62-69页

作者： Penghaing Ly Kim Eang Tho RabyNget Socheath Ong Chanthin Ouk Savry Poeng Phanta Seng Theary Leng Socheat Chheum Division of Research and Extension Royal University of AgriculturePhnom Penh 120501Cambodia Faculty of Agronomy Royal University of AgriculturePhnom Penh 120501Cambodia

Tomato(Solanum lycopersicum)is one of the most widely grown and consumed as fresh vegetable in the *** rolfsii *** one of the most destructive diseases and affects more than 500 plant *** study was conducted for“Evaluation of Selected Chemical,Biological Fungicides,and induced Resistant to Control White Rot(Sclerotium rolfsii Sacc.)on Tomato”.The experiment was conducted at the Royal University of Agriculture and divided into two *** first section conducted under in vitro condition consists of four treatments T1 control treatment,T2 copper hydroxide,T3 azoxystrobin+difenoconazole,T4 metalaxyl+mancozeb in Nagoya Laboratory,and had been starting from 11st May to 15th May *** two was conducted in a pot in net-house which started from 1st January 2019 to 19th February 2019 and 1st January to 19th February 2020 and arranged in RCBD(Randomized Completely Block Design)with six replications and nine treatments.T0 negative control,T1 inoculate but not treatment,T2 metalaxyl+mancozeb,T3 azoxystrobin+difenoconazole,T4 copper hydroxide,T5 acibenzolar-S-methyl,T6 chicken dung+Trichoderma harzianum,T7 acibenzolar-S-methyl+chicken dung+Trichoderma harzianum,T8 acibenzolar-S-methyl+metalaxyl+*** were collected on colonizing diameter in *** pot experiment collected on disease incidence,incubation period Based on the result under in vitro condition metalaxyl+mancozeb highly inhibited germination of Sclerotium rolfsii when compared with another ***,the application of copper hydroxide seems less effective compared with *** in pot experiment,when treated after symptom of southern blight appeared to seem less effective on the severity of southern *** contrast,when applied as a protectant and curative when symptoms appeared only systemic fungicide azoxystrobin+difenoconazole significantly reduced the severity of Sclerotium rolfsii and delayed incubation period while compared with other treatments(p<0.0

关键词： Sclerotium rolfsii Sacc. biological control Trichoderma hazianum induced resistance chemical control

Study on the resistance induced by Salicylic Acid Against Phytophthora capsici in Pepper （Capsicum annuum）

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Agricultural Sciences in China 2005年第3期4卷 192-198页

作者： MAOmi-jun WANGYong-jian FENGLan-xiang GENGSan-sheng XUYong NationalEngineeringResearchCenterforVegetable Beijing100089P.R.China InstituteofVegetableandFlowers ChineseAcademyofAgriculturalSciencesBeijing100081P.R.China

Pepper Phytophthora blight caused by Phytophthora capsici L. is the most destructive disease for reducing pepper yields in the world. Building up varietal resistance and induced resistance to the disease are of agricultural importance. In this paper, the disease resistance induced by salicylic acid (SA) against P. capsici were studied by using four hot pepper lines with different resistant abilities and one P. capsici strain with middle pathogenicity. Results show that SA could induce significantly the resistance of pepper seedlings to P. capsici, but CaC12, KH2PO4 and VAM couldn't. SA at a relative low concentration from 0.15 to 0.3 g L-1 had no antifungal activity in vitro against P. capsici. That means the disease resistant enhancement of the plants treated with SA is due to the induction effect, but not the antifungal effect of SA. About 1 to 5 days internal between SA-treatment and challenge inoculation was sufficient to induce the disease resistance of hot pepper. The resistance could remain more than 20 days after treatment with SA.

关键词： Pepper Phytophthora capsici Salicylic acid(SA) induced resistance

Stimulatory Effect of Tithonya diversifolia-by Products on Plantain Banana Vivoplants in Nursery (A Review)

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American Journal of Plant Sciences 2024年第9期15卷 726-745页

作者： Cécile Annie Ewané Arouna Meshuneke Gaston Elock Mbang Fabrice Damien Wassom William Asah Che Glen Takang Beyang Craftsman Ndula Ndula-Nan Landry Fotsing Silatsa Jospin Walter Kom Timma Marie-Paule Kengoum Djam Rosine Arckange Barakielle Bindzi Abah Nicolas Niemenak Department of Biochemistry Faculty of Science University of Yaounde 1 Yaounde Cameroon Laboratory of Biochemistry and Vegetal Physiology of Higher Teachers Training College University of Yaounde 1 Yaounde Cameroon Laboratory of Phytoprotection and Valorisation of Genetic Resources of The Biotechnology Centre University of Yaounde 1 Yaounde Cameroon Department of Biological Science Higher Teachers Training College University of Yaounde 1 Yaounde Cameroon

Plantain banana is an important cash crop that serves as stable food for millions of people around the world and contributes to income generation. Indeed, they provide a major staple food crop for millions of people and play an important role in the social fabric of many rural communities. Plantain banana cultivation encounters major problem of seedlings unavailability that are essential for the creation of new plantations, as well as parasitic constraints. Mycosphaerella fijiensis is the main pathogen attack constraints of banana plant responsible of black Sigatoka disease, and viruses, which can severely reduce the photosynthetic leaf area, leading to banana production losses of more than 80% in plantations with soil fertility problems. The repeated use of synthetic input is the origin of contamination to the environment, different pollution sources of plants and human health, as well as resistance to some strains of pathogens and plant fertilization problems over time. Recent works carried out in nursery have shown that vivoplants of plantains treated with biostimulants based on natural products notably Tithonia diversifolia biopromote good growth and less susceptibility to M. fijiensis. Indeed, an increase in agromorphological characteristics, good accumulation of growth and defense biomarkers was also observed. In this context, Tithonia diversifolia is shown to be involved in the stimulatory effect mechanism of growth promotion and defensive reaction of plantain vivoplants against various pathogens and it is suggested to be acting as a vital stimulator. This article reviews the current state of knowledge on plantain banana cultivation constraints and on the potential of Tithonia diversifolia in relation with its different stimulatory effects on plantain vivoplants.

关键词： Tithonia diversifolia Plantain Banana Black Sigatoka Disease Growth Biopromotion Bioprotection induced resistance Biofungicidal Effect

resistance -induced Effect of Several Chemical Reagents on Cucumber against Pseudoperonospora cubensis

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Plant Diseases and Pests 2011年第5期2卷 11-13,17页

作者：刘高峰菏泽学院园林工程系山东菏泽274000

[ Objectlve] The paper was to compare the induced resistance of several chemicals on cucumber against Pseudoperonospora cubensis [ Method ] When the cucumber seedlings grew to 4-leaf stage, the second true leaf was treated with salicylic acid, oxalate, chitosan, calcium nitrate and Na2HPO4, the activity of protective enzymes in the third leaf was determined after 7 d. At the same time, inoculation test was also conducted after induced treatment, and the disease condi- tion was coumed. [ Result ] These chemical treatments promoted protective enzyme activities （POD, SOD, PAL, PPO） in different degree, improved the ultra-weak luminescence, and reduced the disease index of cucumber leaves. [ Conclusion] Five chemical treatments expressed good effects on induced resistance. Among the treatments, oxalate had the best induced effect, followed by salicylic acid, chitosan, Na2 HPO4 and calcium nitrate.

关键词： Cucumber Pseudoperonospora cubens/s induced resistance Ultraweak luminescence China

Nano-Se and GSH Combined Foliar Application Enhances Cucumber resistance to Botrytis cinerea by Promoting Cucurbitacin Biosynthesis through JA Signal Transfer Activation

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Nano-Se and GSH Combined Foliar Application Enhances Cucumbe...