Silicon-based induced resistance in maize against fall armyworm [Spodoptera frugiperda (Lepidoptera: Noctuidae)]

Autor: Liu Chang-zhong, Ali Tan Kee Zuan, Shahbaz Ali, Aroosa Khurshid, Arshad Mehmood Abbasi, Rehan Inayat, Abdulrahman Al-Hashimi, Inzamam Ul Haq, Zhang Kexin
Rok vydání: 2021
Předmět:
Chlorophyll
Pigments
Life Cycles
Chloroplasts
Hydrolases
Plant Science
Biochemistry
chemistry.chemical_compound
Larvae
Lipases
Materials
Multidisciplinary
Pupa
Eukaryota
food and beverages
Agriculture
Plants
Silicon Dioxide
Enzymes
Insects
Horticulture
Experimental Organism Systems
Fecundity
Larva
Physical Sciences
Shoot
Medicine
Fall armyworm
Cellular Structures and Organelles
Cellular Types
Research Article
Arthropoda
Plant Cell Biology
Science
Materials Science
Spodoptera
Biology
Research and Analysis Methods
Zea mays
Model Organisms
Population Metrics
Dry weight
Plant and Algal Models
Plant Cells
Animals
Grasses
Genetically modified maize
Population Biology
Organic Pigments
business.industry
fungi
Organisms
Pest control
Biology and Life Sciences
Proteins
Pupae
Cell Biology
Pesticide
biology.organism_classification
Invertebrates
Maize
chemistry
Animal Studies
Enzymology
Pest Control
PEST analysis
business
Zoology
Entomology
Developmental Biology
Zdroj: PLoS ONE, Vol 16, Iss 11 (2021)
PLoS ONE, Vol 16, Iss 11, p e0259749 (2021)
PLoS ONE
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0259749
Popis: The fall armyworm (Spodoptera frugiperda) is a major economic pest in the United States and has recently become a significant concern in African and Asian countries. Due to its increased resistance to current management strategies, including pesticides and transgenic corn, alternative management techniques have become more necessary. Currently, silicon (Si) is being used in many pest control systems due to its ability to increase plant resistance to biotic and abiotic factors and promote plant growth. The current experiments were carried out at the College of Plant Protection, Gansu Agricultural University, Lanzhou, China, to test the effect of Si on lifetable parameters and lipase activity of fall armyworm and vegetative and physiological parameters of maize plants. Two sources of Si (silicon dioxide: SiO2 and potassium silicate: K2SiO3) were applied on maize plants with two application methods (foliar application and soil drenching). The experiment results revealed that foliar applications of SiO2 and K2SiO3 significantly (P≤0.05) increased mortality percentage and developmental period and decreased larval and pupal biomass of fall armyworm. Similarly, both Si sources significantly (P≤0.05) reduced lipase activity of larvae, and fecundity of adults, whereas prolonged longevity of adults. Among plant parameters, a significant increase in fresh and dry weight of shoot, stem length, chlorophyll content, and antioxidant activity was observed with foliar applications of Si. Root fresh and dry weight was significantly (P ≤ 0.05) higher in plants treated with soil drenching of SiO2 and K2SiO3. Moreover, SiO2 performed better for all parameters as compared to K2SiO3 and control treatment. The study conclusively demonstrated a significant negative effect on various biological parameters of fall armyworm when plants were treated with Si, so it can be a promising strategy to control this pest.
Databáze: OpenAIRE
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