Announcements

Job offersmore »

Tweeting Growers

Last commentsmore »

Top 5 - yesterday

Top 5 - last week

Top 5 - last month

Exchange ratesmore »




Finding of self-medicating behavior in bees not supported in further research

A new study of possible self-medicating behavior in bumble bees conducted by researchers at the University of Massachusetts Amherst reports that a once-promising finding was not supported by further experiments and analysis.

Doctoral candidate Evan Palmer-Young and his advisor, evolutionary ecologist Lynn Adler, had reported in 2015 that a common parasitic infection of bumble bees was reduced when the bees fed on anabasine in sugar water. Anabasine is a natural alkaloid, nicotine-like chemical found in plant nectar. The researchers had hoped their finding was evidence that bees may use “nature’s medicine cabinet” to rid themselves of the intestinal parasite Crithidia bombi, which can decrease the survival of queen bees over the winter and hamper the success of young colonies in the spring.

But as they report in the current issue of PLOS ONE, those results were not borne out with further investigation. “Although uninfected bees in our experiments were not adversely affected by alkaloid-containing diets, anabasine had deleterious effects on infected bees. This is the first report of exacerbation of floral alkaloids’ negative effects by Crithidia infection,” they write.

Further, “This exacerbation is consistent with a growing body of work that suggests the negative effects of combined stressors – including infection, diet quality, and consumption of pesticides – on pollinator health and that widespread infection could have consequences for bees’ ability to tolerate phytochemicals.”



Publication date: 9/15/2017

 


 

Other news in this sector:

7/20/2018 Lavender farmer explains legal case against EU climate policy
7/20/2018 Belgium: "Getting into organic herb cultivation was a great decision"
7/20/2018 How growers can take advantage of CO2 enrichment
7/19/2018 Daylily flowers help China's anti-poverty campaign to bloom
7/16/2018 New QAV shut-off valve
7/13/2018 Effect of low-frequency electromagnetism on root-knot nematodes
7/10/2018 Tips and Tricks for Outdoor Mum and Hydrangea Production this Summer
7/9/2018 How to color a hydrangea
7/9/2018 Propagating hyacinths in 1896 and today
7/6/2018 Looking for the perfect plug plant
6/28/2018 India: Growers exchange paddies for orchids
6/27/2018 NL: Source for brown rot in roses not yet found
6/27/2018 "Biosolids prove adequate alternative to conventional fertilizer"
6/26/2018 Emission-free cultivation on a floating system
6/25/2018 India: Assam to make vegetables and flowers centre commercially viable
6/22/2018 New type of photosynthesis discovered
6/20/2018 Video: How to calibrate a pH and EC meter
6/19/2018 NL: "Just like people, plants need healthy food"
6/18/2018 Saint Lucia: Commercial orchid greenhouse management project launched
6/18/2018 Podcast offers insider tips for greenhouse pros

 

Leave a comment: (max. 500 characters)

  1. All comments which are not related to the article contents will be removed.
  2. All comments with non-related commercial content, will be removed.
  3. All comments with offensive language, will be removed.




  Display email address

  new code