Enhancing the biological control potential ofentomopathogenic nematodes protection fromdesiccation and uv radiation
Başlık çevirisi mevcut değil.
- Tez No: 726868
- Danışmanlar: DR. KOON HUİ WANG
- Tez Türü: Yüksek Lisans
- Konular: Ziraat, Biyomühendislik, Botanik, Agriculture, Bioengineering, Botany
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2019
- Dil: İngilizce
- Üniversite: Unıversıty Of Hawaıʻı At Mānoa | Take Me To Manoa
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
Özet yok.
Özet (Çeviri)
Entomopathogenic nematodes (EPNs) are obligate parasites of insects. EPNs have a broad host range, are easily mass reared, and kill insects within 48 hours. EPNs are safe for vertebrates, plants, and non-target organism. On the other hand, EPNs have disadvantages that make them less effective against foliar insect pest because they are sensitive to desiccation, ultraviolet (UV) radiation and high temperatures. The goal of this research was to improve the efficacy of aboveground application EPNs by protecting them against desiccation and UV radiation. The first objective was to determine efficacy of the desiccation protectant Barricade gel in extending the viability of EPNs. The second objective was to evaluate the effect of UV chemical protectants on EPNs viability. The third objective was to demonstrate enhanced insect control with EPNs protected from UV radiation and desiccation. Barricade® is a proprietary fire-protection product that prevents desiccation. Barricade® gel toxicity to Steinername feltiae and mealworm (Tenebrio molitor) was determined in laboratory experiments. Subsequently, the effect of Barricade® gel on IJ infectivity was determined at different (0, 1, 1.5, 2, 3, and 4%) concentration. Barricade® gel was not toxic to mealworm larvae nor the IJ of S. feltiae. IJ survival was enhanced by Barricade® gel and Barricade® gel prevented desiccation of IJs allowing for greater IJ infection and mealworm larvae mortality. In an excised leaf experiment, Barricade® application enhanced IJ infection of the mealworm larvae over time compared to application in water alone. EPNs and mealworm larvae were exposed to UV radiation protectant chemicals P-amino benzoic acid (PABA) and octyl methoxycinnamate (OMC), Congo red, titanium dioxide, and zinc oxide were not toxic to mealworm larvae and EPNs. PABA, OMC, Congo red, titanium dioxide, iv and zinc oxide protected IJ from exposure to UV light for 0, 4, 8 and 12 hrs. After 48 hrs exposure, PABA afforded the greatest protection to EPN compared to other chemicals. OMC provided the second greatest protection to EPN compared to other chemicals. The UV protectants PABA and OMC were individually combined with Barricade® fire gel and IJs were added. The IJs were exposed to full spectrum UV light in the laboratory for up to 12 hrs. The subsequent number of dead mealworm larvae was greatest in the combination treatments of OMC+Barricade and PABA+Barricade. These treatments afforded the greatest protection to IJs from UV radiation and desiccation in a filter paper experiment and a choy sum (Brassica chinensis var. parachinensis) leaf assay. The survival of IJ can be enhanced when applied with a desiccant protectant such as Barricade and a chemical such as PABA or OMC to protect against UV radiation. The protection afforded to the IJ by these chemicals allows for greater infection and mortality of target insect pests. The formulation of IJs with desiccant and UV radiation protection will allow the greater use of EPN for the management of foliar insect pests.
Benzer Tezler
- Lactobacillus türlerinin tohum ve bitki sağlığına etkilerinin araştırılması
Investigation of the effects of lactobacillus species on seed and plant health
HANDE EVREN ARDA ERGİN
- Enhancing wastewater treatment efficiency through laccase-mediated biodegradation of trace organic contaminants
Kalıcı organik kirleticilerin laccase aracılı bıodegredasyonu ile atıksu arıtım verimliliğinin artırılması
GÜLTEN YÜKSEK
Doktora
İngilizce
2023
Çevre Mühendisliğiİstanbul Teknik ÜniversitesiÇevre Mühendisliği Ana Bilim Dalı
PROF. DR. EMİNE ÇOKGÖR
PROF. DR. HUBERT CABANA
- Geleneksel cam iyonomer simana eklenen farklı morfolojide sentezlenmiş gümüş nanopartikülllerin antimikrobiyal etkinliği ve simanın fiziksel özelliklerine etkisi
Antimicrobial efficacy of silver nanoparticles synthesized in different morphologies and their effect on the physical properties of conventional glass ionomer cement
FEYZA NUR ALTAN
Diş Hekimliği Uzmanlık
Türkçe
2025
Diş HekimliğiErciyes ÜniversitesiPedodonti Ana Bilim Dalı
DOÇ. DR. ZEYNEP ASLI ÖZKAYA
- Peptit bağı içeren abenquine analoglarının sentezi ve biyolojik aktivitelerinin araştırılması
Synthesis of abenquine analogs containing peptide bond and investigation of their biological activity
ULAŞ CAN GÜVEN
- Mikrobiyal gübrelerin kısıtlı sulama altında yetişen hıyar bitkisinin gelişimi, bazı fizyolojik ve biyokimyasal özellikleri ve verimi üzerine etkisi
The effect of microbial fertilizers on the growth, some physiological and biochemical characteristics, and yield of cucumber plants grown under water deficit
GÖKHAN UÇAR
Doktora
Türkçe
2025
ZiraatAkdeniz ÜniversitesiToprak Bilimi ve Bitki Besleme Ana Bilim Dalı
DOÇ. DR. İLKER UZ