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Latest Convolvulaceae Stories

2012-07-25 13:59:34

Dodder vines are parasitic plants that suck water, nutrients and information from other plants as they spread over them. Plant biologists at the University of California, Davis, have now shown that they can make plants resistant to dodder by attacking the junctions where the parasite taps into the host. "We think that this will translate into other parasitic plants," said Neelima Sinha, professor of plant biology at UC Davis, who led the project. The work was published online July 20 by...

2008-07-31 17:51:42

It's bad enough when a parasite latches on to your body to suck you dry. But when it starts eavesdropping on your communications, enough already. That's what the parasitic dodder vine does. It consumes water and nutrients from a host plant and, scientists have just discovered, it taps into the host's communication system. Plants use RNA molecules to send messages to different parts, say from roots to leaves. In the new study, RNA molecules from a host tomato plant were found...

2008-06-24 03:00:48

By Qin, Xiaoqiong Yang, Seung Hwan; Kepsel, Andrea C; Schwartz, Steven H; Zeevaart, Jan A D Abscisic acid (ABA) is a plant hormone found in all higher plants; it plays an important role in seed dormancy, embryo development, and adaptation to environmental stresses, most notably drought. The regulatory step in ABA synthesis is the cleavage reaction of a 9-cis-epoxy-carotenoid catalyzed by the 9-cis-epoxy- carotenoid dioxygenases (NCEDs). The parasitic angiosperm Cuscuta reflexa lacks...

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2006-09-28 19:50:00

WASHINGTON -- The parasitic dodder plant doesn't have a nose, but it knows how to sniff out its prey. The dodder attacks such plants as tomatoes, carrots, onions, citrus trees, cranberries, alfalfa and even flowers, and is a problem for farmers because chemicals that kill the pesky weed also damage the crops it feeds on. So discovering how it finds its prey might help lead to a way to block the weed, or for crops to defend themselves, say researchers at Pennsylvania State University. The...


Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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