Biochemists at the University of California, Riverside report a new role for vitamin C in plants: promoting the production of twins and even triplets in plant seeds.
Biochemistry
Jun 18, 2012
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Scientists already knew that neonicotinoid pesticides, which affect insects' nervous systems, can alter bee behaviour, putting these vital pollinators, already threatened by habitat loss and disease, further at risk.
Plants & Animals
Jun 20, 2012
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In 2008 the Spanish company PharmaMar, dedicated to developing marine-derived drugs against cancer, isolated a promising substance called pipecolidepsin A from the sponge Homophymia lamellosa collected off the coast of Madagascar. ...
Biochemistry
Sep 4, 2013
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1
The average American woman lives more than 80 years and ovulates for 35 of them, producing an egg approximately once a month. The typical fruit fly lives about 4 weeks as an adult and ovulates every 30 minutes. Now researchers ...
Biotechnology
Feb 19, 2015
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288
Mammalian females ovulate periodically over their reproductive lifetimes, placing significant demands on their ovaries for egg production. Whether mammals generate new eggs in adulthood using stem cells has been a source ...
Cell & Microbiology
Apr 29, 2013
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Scientists in Mainz and Aachen have discovered a new mechanism that controls egg cell fertility and that might have future therapeutic potential. It was revealed by Professor Dr. Walter Stöcker of the Institute of Zoology ...
Cell & Microbiology
Apr 24, 2013
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Leptothorax acervorum ants live all over the Northern hemisphere, but their reproductive strategy depends on habitat. Colonies are polygynous (more than one queen) in the forest of Siberia and central Europe, but functionally ...
Plants & Animals
Sep 30, 2011
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1
Worker bees have become a highly skilled and specialized work force because the genes that determine their behaviour are shuffled frequently, helping natural selection to build a better bee, research from York University ...
Plants & Animals
Oct 15, 2012
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The defining feature of social insects is that societies contain queens, which specialise in laying eggs, as well as workers, which are mostly infertile but take care of the offspring and the nest. However, when the queen ...
Plants & Animals
Jun 30, 2010
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1
During embryonic development, two different cascades of genetic signals determine whether the embryo's primordial gonad will become testes or ovaries, and thus whether the embryo will develop into a male or a female. Disruptions ...
Molecular & Computational biology
Jan 4, 2023
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