Effect of Aspergillus flavus on the mortality and activity of antioxidant enzymes of Spodoptera litura Fab. (Lepidoptera: Noctuidae) larvae

Pesticide Biochemistry and Physiology
Sengodan KarthiSengottayan Senthil-Nathan

Abstract

Insects have developed tolerance against mycoses caused by entomopathogenic fungi through several humoral and cellular mechanisms. Antioxidant enzymes such as superoxide dismutase, lipid peroxidase, and peroxidase can play a role in defense against mycosis, but the physiological interactions between the fungus and the insect are not well characterized. In this study, the effects of infection by entomopathogenic fungus, Aspergillus flavus on the antioxidant defense system of Spodoptera litura, were investigated. The fungi, A. flavus exposure resulted in modification of the levels of antioxidant enzymes, as well as significant decline in phenoloxidase titers and the total hemocyte count 48 h post exposure. A significant increase was observed in detoxifying enzymes. All these results suggest that A. flavus infects S. litura by directly acting on the immune system, resulting in decreased immune function. Bioassay results showed that A. flavus affects third and fourth instar larvae of S. litura. This report supports the importance of A. flavus as a candidate for biological control of S. litura.

Citations

Aug 1, 2019·Environmental Science and Pollution Research International·Radhakrishnan PalanikaniArunachalam Ganesan Murugesan
Oct 13, 2020·Environmental Science and Pollution Research International·Narayanan Shyam-SundarSengottayan Senthil-Nathan
Aug 9, 2019·Ecotoxicology and Environmental Safety·Sengodan KarthiNarayanan Shyam-Sundar
Jan 13, 2021·Journal of Fungi·Morteza ShahriariMahmoud Fazeli-Dinan
Sep 15, 2019·Pesticide Biochemistry and Physiology·Annamalai ThanigaivelSengottayan Senthil-Nathan
Aug 28, 2021·Pesticide Biochemistry and Physiology·Jayaraman KumaravelMuthugounder Subramanian Shivakumar

❮ Previous
Next ❯

Related Concepts

Related Feeds

Aspergillosis

Aspergillosis is the name given to a wide variety of diseases caused by infection by fungi of the genus Aspergillus. Aspergillosis occurs in chronic or acute forms which are clinically very distinct. Most cases of acute aspergillosis occur in patients with severely compromised immune systems. Chronic colonization or infection can cause complications in people with underlying respiratory illnesses. Discover the latest research on aspergillosis here.

Aspergillosis (ASM)

Aspergillosis is the name given to a wide variety of diseases caused by infection by fungi of the genus Aspergillus. Aspergillosis occurs in chronic or acute forms which are clinically very distinct. Most cases of acute aspergillosis occur in patients with severely compromised immune systems. Chronic colonization or infection can cause complications in people with underlying respiratory illnesses. Discover the latest research on aspergillosis here.