HOME >> BIOLOGY >> NEWS
Plant size morphs dramatically as scientists tinker with outer layer

LA JOLLA, CA Jack's magical beans may have produced beanstalks that grew and grew into the sky, but something about normal, run-of-the-mill plants limits their reach upward. For more than a century, scientists have tried to find out which part of the plant both drives and curbs growth: is it a shoot's outer waxy layer? Its inner layer studded with chloroplasts? Or the vascular system that moves nutrients and water? The answer could have great implications for modern agriculture, which desires a modern magical bean or two.

Now, in the March 8 issue of the journal Nature, researchers in the Plant Biology Laboratory at the Salk Institute for Biological Studies provide the answer. They succeeded in making tiny plants big and big plants tiny by controlling growth signals emanating from the plant's outer layer, its epidermis.

These findings could eventually be used by agronomists to manipulate plant growth pathways to maximize crop yield, or even reduce leaf size or leaf angle in plants that need to be spaced closely together, says the study's lead author, Joanne Chory, Ph.D., professor and director of the Plant Biology Laboratory and investigator with the Howard Hughes Medical Institute.

Chory and her laboratory team have spent years helping to define how a plant "knows" when to grow and when to stop which is a "big question in developmental biology," she says. For their experiments, they rely on the model system Arabidopsis thaliana, a small plant related to cabbage and mustard whose genome has been decoded. Over the years, the researchers have built up a whole tool kit, learning how to add and subtract genes in order to determine form and function. Among their discoveries is a class of dwarf plants whose size is about one-tenth the size of a single leaf of the full-sized plant.

Over the past decade, Chory's laboratory and others have shown that these dwarf plants are defective in making or responding to a steroid hormone ca
'"/>

Contact: Gina Kirchweger
Kirchweger@salk.edu
858-453-4100 x1340
Salk Institute
7-Mar-2007


Page: 1 2

Related biology news :

1. Plant diseases and issues that are of importance to Californias economy and agriculture
2. Plants recognize their siblings, biologists discover
3. Plants that produce more vitamin C may result from UCLA-Dartmouth discovery
4. Plants tag insect herbivores with an alarm
5. Plant pathologists fighting global threat to wheat supply
6. Plants with male and bisexual flowers on the same plant are better mothers
7. Plants do not emit methane
8. FSU leads botanical research into 21st century: Deep South Plant Specimen Imaging Project
9. Mother knows best: Plant knowledge key to childhood health in remote Amazon
10. Plants management of nutrient suggests environmental remedies
11. Plant-grazing fish boost resilience of coral reefs facing stress

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/14/2017)... , June 15, 2017  IBM (NYSE: IBM ) ... international tech event dedicated to developing collaboration between startups and ... on June 15-17. During the event, nine startups will showcase ... value in various industries. France ... the international market, with a 30 percent increase in the ...
(Date:5/16/2017)... , May 16, 2017  Veratad Technologies, LLC ( ... online age and identity verification solutions, announced today they ... Conference 2017, May 15 thru May 17, 2017, in ... and International Trade Center. Identity impacts ... and in today,s quickly evolving digital world, defining identity ...
(Date:5/6/2017)... RAM Group , Singaporean based ... in biometric authentication based on a novel  ... to perform biometric authentication. These new sensors are based on ... Ram Group and its partners. This sensor will have ... and security. Ram Group is a next generation ...
Breaking Biology News(10 mins):
(Date:8/15/2017)... ... August 15, 2017 , ... Kapstone Medical is proud ... successes helping medical technology companies and inventors develop and safeguard their latest innovations. ... engineering firm with a portfolio of clients in the United States and around the ...
(Date:8/15/2017)... ... August 15, 2017 , ... Pittcon is pleased to ... and scientific instruments. This year’s symposium, organized by the Pittcon 2018 program chair, ... Bioanalytical Applications.” This dynamic presentation will discuss novel ionization processes, high throughput IMS-MS ...
(Date:8/15/2017)... ... August 15, 2017 , ... Kenall, a leader in sealed ... stay tightly sealed and perform efficiently for years. The downlights are ideal for ... aren't enough, such as: hospitals; behavioral health facilities; cleanrooms; containment areas; food and ...
(Date:8/15/2017)... ... August 15, 2017 , ... Coffea ... various biotic and abiotic factors. During this educational webinar, participants will learn about ... well as gain a better understanding of how genomics is important for coffee ...
Breaking Biology Technology:
Cached News: