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Latest Xylem Stories

Pine Tree Branches Turned Into Effective Water Filtration Systems
2014-03-07 09:41:17

Lawrence LeBlond for redOrbit.com - Your Universe Online The next time you find yourself lost in the woods with no clean drinking water, the nearest pine tree may save your life. While lake or pond water may provide some short-term relief from dehydration when in the wild, these sources of water are not always clean. This is where the pine tree comes into play. Pouring lake water through a freshly-peeled pine tree limb can effectively remove most bacteria that may exist in the water,...

2012-12-10 13:00:36

Future wood production quality tied to cambial function and regulation As large organisms, trees face some remarkable challenges, particularly regarding long-distance transport and communication. In addition to moving water and nutrients from their roots to their leaves, they must also integrate cell-to-cell communication over large areas. Furthermore, in order to function as a single, cohesive organism they must be able to effectively and efficiently send vital substances–such as...

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2011-07-26 08:41:28

Contrary to expectations, researchers have discovered that the conifers of the Pacific Northwest, some of the tallest trees in the world, face their greatest water stress during the region's eternally wet winters, not the dog days of August when weeks can pass without rain. Due to freeze-thaw cycles in winter, water flow is disrupted when air bubbles form in the conductive xylem of the trees. Because of that, some of these tall conifers are seriously stressed for water when they are...

2011-05-16 17:18:39

Earlier springs could enhance xylem growth in black spruce"”but colder summers could negate that With an increasingly warmer climate, there is a trend for springs to arrive earlier and summers to be hotter. Since spring and summer are the prime growing seasons for plants"”when flowers bloom and trees increase in girth and height"”do these climate changes mean greater seasonal growth for plants? This is a critical question for forest management, especially in the boreal...

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2010-12-13 11:41:16

The researchers decided to embark on this study in order to find out which mechanisms are used by plants when they extract water from very dry or somewhat inhospitable land. "In the case of mangrove swamps, for example, the plants are able to extract freshwater from a saltwater environment, despite the fact that the osmotic pressure should make quite the opposite happen", explains Professor Jos© Luis P©rez Díaz, who studies this type of relatively unknown...

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2010-03-15 09:05:58

Researchers get up-close look at Pierce's Disease Like a band of detectives surveying the movement of a criminal, researchers using photographic technology have caught at least one culprit in the act. In this case, electron microscopy was used to watch a deadly bacteria breakdown cell walls in wine grape plants "“ an image that previously had not been witnessed. The study will be published in Botany. "Basically, we've been interested in determining how the bacteria moves," said Dr. B....

2008-12-02 11:35:00

SOLON, Ohio, Dec. 2 /PRNewswire/ -- Dots, a national women's retailer based in Solon, Ohio, launched a new Web site, www.dots.com. The fashion-forward site is the first stage in the development of a fully integrated online marketing campaign. Dots partnered with Denver-based digital advertising agency, Xylem, to design the site and develop an all-encompassing online marketing presence. (Logo: http://www.newscom.com/cgi-bin/prnh/20081202/CLTU086LOGO ) Dots newly redesigned Web...

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2008-02-27 14:45:00

An ability to avoid the plant equivalent of vapor lock and a favorable evolutionary history may explain the unusual drought resistance of junipers, some varieties of which are now spreading rapidly in water-starved regions of the western United States, a Duke University study has found."The take-home message is that junipers are the most drought-resistant group that has ever been studied," said Robert Jackson, a professor of global environmental change and biology at Duke's Nicholas School of...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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