News tagged with pollen tubes
Biologists Unlock Secrets of Plants' Growing Tips
Aug 25, 2009 |
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(PhysOrg.com) -- Biologist Magdalena Bezanilla and colleagues at the University of Massachusetts Amherst have used a technique they call multi-gene silencing to, for the first time, simultaneously silence nine genes in a ...
Scientists find unexpected key to flowering plants' diversity
Biology /
Jul 28, 2008 |
4.6 / 5 (19) |
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What began with an off-the-cuff curiosity eventually led Joe Williams to hang from the limbs of a tree 80 feet above the soil of northeastern Australia.
Mate choice in plants
Biology /
Jun 28, 2008 |
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In flowering plants, the female reproductive organ, the pistil, comprises the stigma, style, and ovary. The stigma catches pollen shed by the male anthers. If the pollen is compatible, it will germinate and send tubes through ...
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Sex life of plants reveals conflicts between the sexes
May 08, 2009 |
4 / 5 (2) |
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The pollen grains of male plants live in great competition. A grain of pollen that succeeds in manipulating the flower’s pistil can emerge victorious from the struggle. This is shown by new research from Lund University in ...
Scientists discover environmental factors linked to sex ratio of plants
Biology /
Jul 22, 2008 |
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Environmental factors can transform the ratio of females to males in plant populations according to new research out of the University of Toronto.
Biologists find unusual plant gene: abstinence by mutual consent
Biology /
Dec 20, 2007 |
3.3 / 5 (7) |
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Biologists at the University of California, San Diego have discovered a gene in plants that disrupts fertilization only when mutations in the gene are present in both the female and male reproductive cells.
New research explains orchids' sexual trickery
Dec 17, 2009 |
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A new study reveals the reason why orchids use sexual trickery to lure insect pollinators. The study, published in the January issue of The American Naturalist, finds that sexual deception in orchids leads to a more effici ...
Killer bees may increase food supplies for native bees
Oct 01, 2009 |
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Aggressive African bees were accidentally released in Brazil in 1957. As "killer bees" spread northward, David Roubik, staff scientist at the Smithsonian Tropical Research Institute, began a 17-year study ...
Global warming increasing the dispersal of flora in Northern forests
Jun 11, 2009 |
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As a result of stronger winds caused by global warming, seeds and pollen are being carried over longer distances. An increase in temperature of only a couple of degrees may increase the dispersal of plants in Northern forests ...
Successful initial safety tests for genetically-modified rice that fights allergy
Jun 24, 2009 |
1.5 / 5 (4) |
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In a first-of-its-kind advance toward the next generation of genetically modified foods -- intended to improve consumers’ health -- researchers in Japan are reporting that a new transgenic rice designed to ...
Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants
Jan 26, 2005 |
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UC Riverside researchers from the Departments of Chemical and Environmental Engineering, Mechanical Engineering and Botany and Plant Sciences have worked together to discover a way to utilize Quantum Dot bio-conjugates to ...
Well-traveled wasps provide hope for vanishing species
Nov 09, 2009 |
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They may only be 1.5mm in size, but the tiny wasps that pollinate fig trees can travel over 160km in less than 48 hours, according to research from scientists at the University of Leeds. The fig wasps are transporting ...
Fallopian tubes offer new stem cell source
Jun 18, 2009 |
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Human tissues normally discarded after surgical procedures could be a rich additional source of stem cells for regenerative medicine. New research from BioMed Central's open access Journal of Translational Medicine shows ...
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