Janthitrem A is a mycotoxin that has been found inP. janthinellum.1It induces tremors in mice and decreases the time to fall from the rotarod when administered at a dose of 4 mg/kg.2Janthitrem A (20 μg/g) also reducesW. cervinatalarvae weight gain and food consumption.
1.Gallagher, R.T., Latch, G.C., and Keogh, R.G.The janthitrems: Fluorescent tremorgenic toxins produced by Penicillium janthinellum isolates from ryegrass pasturesAppl. Environ. Microbiol.39(1)272-273(1980) 2.Babu, J.V., Popay, A.J., Miles, C.O., et al.Identification and structure elucidation of janthitrems A and D from Penicillium janthinellum and determination of the tremorgenic and anti-insect activity of janthitrems A and BJ. Agric. Food Chem.66(50)13116-13125(2018)
ω-Hydroxy-DEET, a significant metabolite of the insect repellent N-N-diethyl-meta-toluamide (DEET), exhibits anti-proliferative properties. DEET, renowned for being a spatial repellent and irritant, is frequently employed to deter mosquito contact.
Juvenile hormone B 3 (Juvenile hormone III bisepoxide) (mixture of diastereomers) 是一种倍半萜类激素。它可以从果蝇和黑腹果蝇等高等双翅目昆虫的翅体 (CA) 中分离,具有抗变态活性。Juvenile hormone B 3 (mixture of diastereomers) 通过与幼虫激素 (JH) 受体 (Met和Gce) 的直接作用,诱导Kr-h1的表达,可用于昆虫致死性研究。
Nimbin is an anti-pyretic, can be used to treat arthritis, hypoglycaemia, peptic ulcers, anti-secretory activity, and it can also be used as an antibiotic. Nimbin requires to elicit a 50% inhibition of this steroid hydroxylase activity in the three insect
Vestitol is a phytoalexin with insect feeding-deterrent activity, it has antioxidant, anti-inflammatory and antimicrobial activities, it can inhibit neutrophil migration at a dose of 10 mg/kg, and shows MICs ranging from 25-50 to 50-100 ug/mL and MBCs ranging from 25-50 to 50-100 ug/mL.Vestitol exerts a limited inhibitory effect on S. hermonthica germination, it can significantly inhibit seedling growth, it also contributes, at least in part, to the host's defence mechanism and acts as a chemical barrier against the intrusion of the parasite.