Researchers Learn What Sparks Plant Growth

Posted on March 17, 2007  Comments (3)

Researchers Learn What Sparks Plant Growth:

“How do organisms decide when to grow and when to stop growing? These questions are especially important in plants because they are rooted in the ground and must alter their shape and size in response to their local environment. Thus, it’s a question of survival,” added Chory. “It took us 10 years to develop the tools to ask the question. It is very satisfying for me to see the results.”

“It’s been a matter of some debate for a very long time if one of these tissue layers controls plant growth or if all three layers have to work together,” Chory said. “Our paper shows very clearly that the epidermis is in control—in both driving and restricting growth. In addition, our studies show that the cells in the epidermis “talk” to the cells in the inner layers, communicating that they too should expand.”
March Flowers

In January we had a long stretch of warm weather. Shoots for early blooming flowers sprouted in my front yard. Then we had about 6 weeks of winter weather. I was wondering how the flowers would do (they do fine with a few days of freezing weather after sprouting – since they have evolved to bloom early). They did fine, photo above (by John Hunter, March 11th).

Related: More Nutritious WheatWhat Are Flowers For?

3 Responses to “Researchers Learn What Sparks Plant Growth”

  1. Curious Cat Science Blog » Plants can Signal Microbial Friends for Help
    October 19th, 2008 @ 9:09 am

    “when the leaf of a plant is under attack by a pathogen, it can send out an S.O.S. to the roots for help, and the roots will respond by secreting an acid that brings beneficial bacteria to the rescue…”

  2. Curious Cat Science and Engineering Blog » First Flowers of Spring
    March 9th, 2009 @ 3:51 pm

    […] What Sparks Plant Growth – What Are Flowers For? – Curious Cat Science Search by curiouscat   Tags: Students […]

  3. How do Plants Grow Into the Sunlight? » Curious Cat Science and Engineering Blog
    April 18th, 2012 @ 8:19 am

    […] full press release – Researchers Learn What Sparks Plant Growth – Science and the Excitement, the Mystery and the Awe of a Flower – Norman E. Borlaug […]

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