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Latest Plant physiology Stories

2011-06-09 23:31:34

Controlling water loss is an important ability for modern land plants as it helps them thrive in changing environments. New research from the University of Bristol, published today in the journal Current Biology, shows that water conserving innovations occurred very early in plants' evolutionary history. The research focused on the role of stomata, microscopic pores in the surface of leaves that allow carbon dioxide gas to be taken up for use in photosynthesis, while at the same time allowing...

2011-06-02 12:43:19

Photosynthesis mechanics is the answer to solar energy Understanding the way plants use and store light to produce energy could be the key ingredient in the fight against climate change, a scientist at Queen Mary, University of London says. Professor Alexander Ruban from Queen Mary's School of Biological and Chemical Sciences has been studying the mechanisms behind photosynthesis, a process where plants use sunlight and carbon dioxide to produce food and release oxygen, for 30 years. In a...

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2011-05-19 08:12:04

Salk scientists grow understanding of how photosynthesis is regulated The seeds sprouting in your spring garden may still be struggling to reach the sun. If so, they are consuming a finite energy pack contained within each seed. Once those resources are depleted, the plant cell nucleus must be ready to switch on a "green" photosynthetic program. Researchers at the Salk Institute for Biological Studies recently showed a new way that those signals are relayed. In a study published in the May...

2011-05-16 17:37:19

Research on controlling the stem cells of plants could eventually lead to learning how to make them produce more fruit, seed and leaves, according to Dr. Xiuren Zhang, Texas AgriLife Research scientist and professor with the Texas A&M University department of biochemistry and biophysics. Results of a nearly three-year project led by an AgriLife Research team headed by Zhang was published in Cell, one of the most cited scientific peer-review journals in the world. "Working with the shoot...

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...

2011-05-12 22:41:16

In a head-to-head battle of harvesting the sun's energy, solar cells beat plants, according to a new paper in Science. But scientists think they can even up the playing field, says researcher David Kramer at Michigan State University. Plants are less efficient at capturing the energy in sunlight than solar cells mostly because they have too much evolutionary baggage. Plants have to power a living thing, whereas solar cells only have to send electricity down a wire. This is a big difference...

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2011-05-04 06:40:00

Between 5 and 10 million years ago, the landscape on Earth changed dramatically. Brown University biologists and colleagues have determined that cacti exploded onto the global scene then, about the same geologic time as other succulent plants and tropical grasses. The trigger: A global period marked by cooling and increased aridity, possibly with lowered atmospheric carbon-dioxide levels. Their findings appear in the Proceedings of the National Academy of Sciences. The cactus, stalwart of the...

2011-04-18 16:42:38

A mechanism for stabilizing the development of the plant organism During the development of organisms, a particular event repeatedly occurs: a signal appears temporarily, but the processes it triggers must be maintained "“ for example, when the fate of cells in the embryo is established. The plant hormone auxin plays an important role as a signaling molecule during embryo development of the thale cress (Arabidopsis thaliana), a model plant widely used in genetic studies. Researchers...

2011-03-29 20:07:05

A study at Michigan State University has revealed a potential new way for plants to fend off pests "“ starvation. Gregg Howe, biochemistry and molecular biology professor, cites that this defense mechanism is just one example of a veritable evolutionary arms race between plants and herbivores. Howe, in the current issue of the Proceedings of the National Academy of Sciences, offers insights to understanding the chemical weaponry of this war, which could lead to new approaches to protect...

2011-03-17 17:31:38

During the evolution of plants of the mustard family a leucine producing enzyme mutated into an enzyme that protects plants against herbivores Plants are continually exposed to herbivore attack. To defend themselves, they have developed sophisticated chemical defense mechanisms. Plants of the mustard family, such as thale cress (Arabidopsis thaliana), produce glucosinolates (mustard oil glucosides) to protect themselves against herbivory. Scientists know many different kinds of these...


Latest Plant physiology Reference Libraries

International Journal of Biometeorology
2012-04-29 20:58:31

The International Journal of Biometeorology is a peer-reviewed scientific journal published by Springer Science+Business Media on behalf of the International Society of Biometeorology. The journal publishes original research papers, review articles, and short communications on studies examining the interactions between living organisms and factors of the natural and artificial physical environment. It publishes articles in the following fields: Earth and environmental science, life...

45_20138aaa34c0aef5a2af87b137102229
2009-04-23 11:07:34

Bittercress (Barbarea vulgaris), also commonly known as Herb Barbara, Rocketcress, Yellow Rocketcress, Winter Rocket, and Wound Rocket, is a European biennial herb. This plant displays a rosette of shiny, dark green leaves at the base and additional pinnately divided leaves on the stem. In the spring, yellow flowers originate in tightly packed terminal groups just above the foliage. Bittercress grows wildly as a weed in many parts of North America. The flowers can be in bloom May...

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2007-12-27 09:16:35

The Par Rubber Tree (Hevea brasiliensis), is a tree belonging to the family Euphorbiaceae. It is the most economically important member of the genus Hevea. It is of major economic importance because its sap-like extract (latex) can be collected and is the primary source of natural rubber. The Pará rubber tree initially grew only in the Amazon Rainforest. Now most rubber tree plantations are in southeast Asia and tropical Africa. Attempts to cultivate the tree in other areas in South...

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Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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