Identifying stress hormones in insects can be a step towards environmentally friendly pesticides. Researchers from Stockholm University have discovered that one hormone coordinates the responses to stress in fruit flies. Their study is recently published in the Royal Society journal Open Biology.
Animals encounter stress on a daily basis and it can be evoked by a multitude of different environmental factors. Extreme cold or hot temperatures, lack of food or water availability and oxidants can all disrupt the internal balance (homeostasis) of animals, thus evoking stress. To counteract stress, animals have evolved various physiological and behavioural mechanisms which are regulated by several brain hormones.
In humans, stress is regulated by hormones such as adrenocorticotropic hormone and cortisol. But these hormones happen to be missing in insects and other invertebrates. So how do insects, which are the most successful group of animals inhabiting almost every corner of the world, cope with stress? The answer lies in a hormone that was discovered almost three decades ago, but its main function has remained elusive till now. A research team led by Dick Nässel at Stockholm University has discovered that an insect hormone, corazonin, coordinates responses to various stresses in the pesky fruit fly. Reporting in the Royal Society journal Open Biology, Dick Nässel and his colleagues at the Department of Zoology, Stockholm University, have discovered that fruit flies use this hormone to counteract stress and restore their internal balance.
Dick Nässel explains: “Just like humans, flies are able to counteract stress even though the precise components of this system may be different. When they are starving or dehydrated, flies use up their energy stores to forage and feed in order to maintain their internal stable state. These actions are coordinated by corazonin which also helps flies counteract oxidants and it does all this by acting on the fly’s liver-like fat body.”
What is not clear yet is if corazonin makes use of other intermediary hormones to coordinate various stress responses. This is the focus of co-author Meet Zandawala’s current project:
“We are now investigating if corazonin interacts with other hormones in the brain. We want to identify different stress hormones in insects and use this information to find environmental friendly ways to specifically control populations of pest insects and at the same time, protect beneficial insects such as bees.”
Learn more: One hormone to rule them all
The Latest on: Environmentally friendly pesticides
via Google News
The Latest on: Environmentally friendly pesticides
- ADAFSA conducts several initiatives to protect environment, preserve natural resourceson June 4, 2020 at 7:40 am
... aims at realising sustainable agricultural development and preserving the environment using environmentally-friendly methods to control palm pests. This includes injecting palm tree trunk, as an ...
- Organic Brands take lead ahead of the World Environment Dayon June 4, 2020 at 12:42 am
On June 5 the world celebrates Environment Day in order to acknowledge and address the climate change crisis. Many start-ups in India are also coming to the forefront to push the usage of organic and ...
- Tennessee governor halts distribution of free COVID-19 masks over concerns for pesticide exposureon June 1, 2020 at 12:53 pm
Tennessee Gov. Bill Lee on Monday temporarily halted distribution of free masks intended to slow the spread of COVID-19 following a news report raising safety concerns about an anti-microbial agent ...
- Thailand's chemical pesticide ban troubles farmers, industrieson June 1, 2020 at 5:41 am
Thailand enforced a ban on Monday on two agricultural chemicals widely regarded as toxic to humans, prompting claims from farmers they will face losses, while environmental ...
- Global Agricultural Pesticides Market 2020-2024 | Increased Use of Herbicides to Boost Market Growth | Technavioon May 29, 2020 at 1:45 pm
Technavio has announced its latest market research report titled 2020-2024 (Graphic: Business Wire) LONDON-- ( BUSINESS WIRE )--The global agricultural pesticides market size is expected to grow by ...
- Meant to eradicate locusts, pesticides affect soil, cropson May 29, 2020 at 11:07 am
The Food and Agriculture Organisation (FAO) of the United Nations said on Friday that it may declare the locust invasion a plague if it takes a turn ...
- Georgia woman pleads guilty to selling unregistered pesticides on Ebayon May 28, 2020 at 9:00 pm
A Georgia woman who sold an unregistered pesticide, which she claimed protected against viruses such as COVID-19, has pleaded guilty to violating the ...
- Fall armyworm tests China’s determination to cut back on pesticideson May 28, 2020 at 6:21 am
China’s progress on a 2015 undertaking to reduce pesticide use should continue despite the fall armyworm threat ...
- Nagano communities plagued by pine parasite at odds over pesticideon May 21, 2020 at 7:42 pm
The new mayor of Matsumoto has called off aerial pesticide spraying that had been planned for this fiscal year.
via Bing News