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Category Archive for 'Plant Signaling'

Plants “Stink” One of the really cool things about plants, which I think most people don’t realize, is that they emit many kinds of volatile organic compounds (VOCs). Some of these VOCs we can smell, such as flower fragrances and pine scents. But many, such as the plant hormone ethylene, may either have no odor […]

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Amazing, Amusing, & Surprizing A couple of weeks ago I was perusing the online edition of Wired magazine and spotted the following headline: “The Internet of Vegetables: How Cyborg Plants Can Monitor Our World”. With a title like this, how could I not click on the headline and read the article? (Please see link #1 […]

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Seeking The Light Being light-powered lifeforms, most green plants seek out the sunlight and avoid the shade. But being sessile organisms, plants can not uproot themselves and mosey from the shade into the sun. Because they are stuck in the same spot all of their lives, plants have apparently evolved ways to maximize their light […]

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What’s New In Plant Neurobiology? We’ve had a pretty nice summer here in the upper left-hand corner of the USA. Consequently, I’ve spent a lot of time outdoors, away from my office. But now that the weather is turning cooler, wetter, and more like fall, I’ve had a chance to catch up on what’s new […]

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“It’s Through The Wire…” Most plants in the wild are interconnected via common mycorrhizal networks (CMN) . The “Wood-Wide-Web” and Plant “Social Networks” are two previous posts that explore one of the most intriguing – and frustrating – subjects in plant biology. Intriguing, because vascular land plants likely owe their existence to mycorrhizae. Frustrating, because […]

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The Sperm & Egg Tango In a paper published in the 23 November 2012 issue of Science magazine (Ref 1 below), Dr. Stephanie Sprunck and Prof. Dr. Thomas Dresselhaus and colleagues report a major finding regarding the cellular nature of sexual reproduction in plants. Specifically, they have been studying gamete interaction during fertilization in the […]

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Use Your Houseplants As TV Remotes? Using sophisticated sensing technology, Disney researchers, along with collaborators in Japan and Germany, displayed this interactive plant technology at the 2012 SIGGRAPH conference in Los Angeles, California (August 5-9, 2012). Links to more information: Disney Research website PDF of Etech Abstract

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m4s0n501 Is There a Single Flower-Inducing Pathway? It’s well known that “florigen” is the signal that triggers the transition from vegetative to reproductive development in plants that flower in response to photoperiod. But some plants, for example the “Night-Neutral” (a.k.a., “Day-Neutral”) plants, apparently initiate flowering because of factors other than night length. In plants that […]

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Much can be found online about why leaves change colors in the fall… …but relatively little about the final part of the story, namely leaf drop. Components of this terminal process, called leaf abscission, are actually put into place at the beginning of the leaf’s life. At the end, a chemical signal from the leaf […]

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A Brief Stroll Down Memory Lane Previously, we delved into the subject of “long-term” (weeks to months) plant “memory” by exploring what’s new on the subject of vernalization, that is, how some plants “remember” that they have experienced winter. In this case, a “cold” treatment of some plant species over the course of weeks leads […]

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