Dissertation > Excellent graduate degree dissertation topics show

Studies on the Fungicidal Activities of Some Essential Oils

Author: WangHongNian
Tutor: ZhangXing
School: Northwest University of Science and Technology
Course: Pesticides
Keywords: essential oils fungicidal activities Cinnamon oil Botrytis cinerea
CLC: S482.292
Type: Master's thesis
Year: 2007
Downloads: 606
Quote: 2
Read: Download Dissertation

Abstract


The fungicidal activities of essential oils had been proven by many schlars.The fungicidal activities of plant essential oils were researched in order to provides the theory basis to their development and using as fungicide. The results showed as follows:1. The fungicidal activities were tested against Botrytis cinerea, Pseudoperonospora, Fulria fulva and Alternaria solani of seven essential oils including Citronella oil, Lemongrass oil, Camphor oil, Sassafras oil, Nature Wintergreen oil, Litsea cubeba oil and Cinnamon oil. The results indicated that fungicidal activities of Camphor oil and Cinnamon oil were better than that of other essential oils.(1) The EC50 values of Camphor oil and Cinnamon oil of inhibitory effect against mycelia growth of Botrytis cinerea were 126.6205 mg·L-1 and 128.1587 mg·L-1.Their EC50 values of inhibitory effect against spores germination of Botrytis cinrerea were 181.8763 mg·L-1 and 228.5453 mg·L-1.The result in vivo showed that their protective effect against Botrytis cinerea was better than therapeutic effect . At the concentration of 500 mg·L-1, their protective effects against Botrytis cinerea by means of Cucumber Cotyledon Method were both 100%;their protective effects against Botrytis cinerea on tomato were 52.42% and 50.48%.In the pot experiment , protective effects of Camphor oil and Cinnamon oil against Botrytis cinerea were 59. 65% and 61.40% at the concentration of 2000 mg·L-1.(2) Inhibitory effect of Camphor oil against spores germination of Pseudoperonospora was better than others.It’s EC50 values was 198.5197 mg·L-1.(3) The MIC values of Camphor oil and Cinnamon oil of inhibitory effect against mycelia growth of Fulria fulva were 275 mg·L-1 and 258 mg·L-1. Inhibitory effect of Cinnamon oil against spores germination of Fulria fulva was best than others, it’s EC50 values was only 38.9623 mg·L-1.(4) The EC50 values of Camphor oil and Cinnamon oil of inhibitory effect against mycelia growth of Alternaria solan were 126.6205 mg·L-1 and 128.1587 mg·L-1.2. The primary chemical composition of Camphor oil and Cinnamon oil were analyzed with GC/MS. The main ingredients of Cinnamon oil were cinnamaldehyde, (E)-(74.10%), 2-propen-1-ol, 3-phenyl-, acetate(10.18%),acetic acid, 2-phenylethyl ester(0.67%) and 2-propenal, 3-(2-methoxyphenyl)- (0.59%) and so on. The main ingredients of Camphor oil were 1,3-Benzodioxole, 5-(2-propenyl)- (95.09%) and benzene, 1,2,3-trimethoxy -5- (2-propenyl)- (0.84%) and so on.3. 20 % Cinnamon oil EC was configurated , and content detection method of cinnamaldehyde was established in this dissertation. The control effect of 20%Cinnamon oil EC against Botrytis cinerea in greenhouse showed that it’s control effect was not ideal, and the control effect after 3 days was only 30.31% at the concentration of 2000 mg·L-1.In this dissertation, the fungidal activities of several essential oils were test. The results showed Camphor oil and Cinnamon oil have the better inhibitory actions to several kind of common greenhouses plant diseases; the chemical composition of Camphor oil and Cinnamon oil were analyzed with GC/MS; preliminary formulation study of Cinnamon oil was carried out and content examination method of cinnamaldehyde was established. It can be make references to development and using of the plant essential oils as fungicide that the bioassay methods and content examination method of cinnamaldehyde in this dissertation.

Related Dissertations

  1. Study on Effect and Mechanism of Hot Air Treatment Combined with MeJA on Postharvest Disease of Strawberry Fruit,TS255.3
  2. Functional Analysis of ACD5 during Infection of Botrytis Cinerea in Arabidopsis Thaliana,S432.1
  3. Effects and Mechanisms of Essential Oils on Quality Maintenance in Postharvest Starawberry and Chinese Bayberry Fruit,S667.6
  4. Study on Bacteriostatic Mechanism of Antagonistic Yeast and Effects on the Quality of Postharvest Strawberries,S668.4
  5. Extraction and GC-MS Analysis of the Essential Oil of Magnolia Plants,R284
  6. Studies on the Pathogenic Mechanism of Botrytis Cinerea Toxin and Its Inactivation,S436.412
  7. Fractionation of Volatile Constituents from Traditional Chinese Medicine by Preparative Gas Chromatography,R284
  8. Indus flowers and Isolation and Identification of Chemical Constituents,R284
  9. Ku-shui Rose Essential Oil and Rose Residue Pigment Extraction and Purification,TS264.4
  10. Analysis on the Adnascent Microorganism Flora of Grape Leaves and Screening of Antagonistic Strain to Botrytis Cinerea,S436.631
  11. Study on Chemical Components of the Essential Oils in Glehnia Littoralis,R284
  12. Study on the Extraction Technology, Chemical Composition Analysis and Active Function of Valeriana Volatile Oil,R284
  13. Study on Antimycotic Activity Against Fish-pathogenic Saprolegnia Fungus of Litsea Cubeba Extraction Oil,S948
  14. Study on the Effect of Plant Essential Oil Meal on Growth Performance、apparent Digestibility and Digestive Enzyme Activities of Broilers,S831.5
  15. Biological Activity and Application of 5 Plant Essential Oils,Q946
  16. Study on Process of 15% Diniconazole · Imazalil Aerosol,TQ455.4
  17. Isolation of Phyllosphere Actinomycetes from Cucumber and Biocontrol on Cucumber Grey Mold and Target Leaf Spot,S436.421
  18. The Further Studies on the Insecticidal and Antifungal Constituents of the Buddleja Albiflora H.,R284
  19. Screening of Tomato Gray Mold Antagonistic Bacteria and Induction of Systemic Resistance Against Bacterial Wilt by Three Bacillus Strains on Tomato Plants,S436.412
  20. Study on the Effect of AbA to the IPC Synthase from Botrytis Cinerea and It’s Mechanism,S476
  21. Mechanisms of Exogenous NO on Resistance of Arabidopsis to Grey Mold Disease,S432.4

CLC: > Agricultural Sciences > Plant Protection > Pesticide ( chemical control ) > Various pesticides > Antiseptic > Biological sources of fungicides
© 2012 www.DissertationTopic.Net  Mobile