Navigation Links
Plant biologists dissect genetic mechanism enabling plants to overcome environmental challenge
Date:8/3/2011

architecture, and this fact provided a starting point for our work," says CSHL Professor David Jackson, who led the research team which also included scientists from Cornell University; the University of Wisconsin, Madison; North Carolina State University; the University of California, San Diego and Pioneer Hi-Bred. The team's findings appear today online ahead of print in Proceedings of the National Academy of Sciences.

One can plainly see that maize plants produce very few lateral branches at their base. The sparseness of tillers, as these branches are called by plant biologists, is the first clue: plants with many lateral branches don't tend to grow well in close proximity, for their branches and leaves tend to throw any close neighbors into shade, thus limiting access to sunlight, their common prime energy source. By severely limiting its lateral branching, maize is able to redirect its energy to the primary shoot, which grows taller and escapes the shade.

"It is actually human selection that has done this," explains Jackson. "Although maize plants produce tiller buds, the nascent branches fail to grow out, which results in the plant's familiar dominant central stalk." The team knew that maize plants in which gt1 is mutated generate several tillers and additional ear branches; this suggested that gt1 expression is normally associated with the suppression of tiller growth. This was confirmed in tests in which gt1 expression was measured in plants grown in the laboratory equivalent of shade.

Another maize gene called teosinte branched1, or tb1, is also known to regulate tiller bud growth and lateral branching in maize, and to be active in response to internal signals indicating the presence of shade. The next question was whether the two genes act in a common pathway, or separately. The expression of each was measured when the other was experimentally inactivated. "We found that gt1 doesn't get activated unless tb1 i
'/>"/>

Contact: Peter Tarr
tarr@cshl.edu
516-367-8455
Cold Spring Harbor Laboratory
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Some plants duplicate their DNA to overcome adversity
2. Dissecting the genomes of crop plants to improve breeding potential
3. Plant immunity discovery boosts chances of disease-resistant crops
4. 1st large-scale map of a plants protein network addresses evolution, disease process
5. Scientists take a giant step for people -- with plants!
6. Novel gene increases yeasts appetite for plant sugars
7. Modeling plant metabolism to optimize oil production
8. Clinical tests for medicines made from genetically modified plants
9. Marquesas Islands in French Polynesia yield 18 new species of rare ferns and flowering plants
10. Scientists to assemble knowledgebase on plants, microbes, to aid US biofuel, environment efforts
11. 1 more way plants help human health
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... Jul. 31, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market and creator ... filed provisional patent 62/198989 for ELECTRONIC CRYPTO-CURRENCY ... a method to advance crypto-currencies such as Bitcoin into ... common, uniform way to manage all payments.  ...
(Date:7/30/2015)... Calif. , July 30, 2015 ... services for gene function analysis and biomarker discovery, ... RNA (sgRNA) Knockout Library targeting all human protein ... and permanently "knock out" a gene,s function. Cellecta,s ... a high throughput screening tool so that researchers ...
(Date:7/27/2015)... , July 27, 2015   Zynx Health ... experience-based clinical improvement solutions, today announced that its ... now available on Android smartphones and tablets. With ... post-care organizations can use ZynxCarebook to securely exchange ... condition, streamline care transitions to other care settings, ...
Breaking Biology News(10 mins):NXT-ID Patents Electronic Crypto-Currency Management Technology 2NXT-ID Patents Electronic Crypto-Currency Management Technology 3NXT-ID Patents Electronic Crypto-Currency Management Technology 4CELLECTA, INC. Announces Launch of Human Whole Genome CRISPR Knockout Library 2Zynx Health Adds Android Device Support to ZynxCarebook Solution 2Zynx Health Adds Android Device Support to ZynxCarebook Solution 3
... the Southeastern Branch of the Entomological Society of ... at the Hilton Baton Rouge (201 Lafayette Street) ... Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, ... citrus greening disease, invasive species, rice and cotton ...
... The onset of Post-Traumatic Stress Disorder (PTSD) is unpredictable. ... events, it is difficult to identify preventative or causative ... developed PTSD to study the disorder, but that means ... to experiencing trauma. Now, through a combination ...
... Silicon, the material of high-tech devices from computer chips to ... applications. The coating "passivates" the material, tying up loose atomic ... But this passivation process consumes a lot of heat and ... that can be added to the devices. Now a ...
Cached Biology News:Gene associated with high anxiety can have protective effect on the battlefield 2Gene associated with high anxiety can have protective effect on the battlefield 3A cooler way to protect silicon surfaces 2A cooler way to protect silicon surfaces 3
(Date:8/3/2015)... MARIETTA, Ga. , Aug. 3, 2015  MiMedx ... medicine company utilizing human amniotic tissue and patent-protected processes ... the Wound Care, Surgical, Orthopedic, Spine, Sports Medicine, Ophthalmic ... will present at the 35 th Annual Canaccord|Genuity ...  Parker H. "Pete" Petit, Chairman and CEO, William ...
(Date:8/3/2015)... Delaware , August 3, 2015 ... in the commercialization of its Bio-electrical Signal Therapy device ... noninvasive treatment of hard to heal chronic wounds, today ... agreement with Chemipal, an Israeli distributor specializing in medical ... device. Chemipal is a 70 years old, ...
(Date:7/31/2015)... VEGAS , July 31, 2015 ... seek resources that help them drive positive health ... a vital source of patient care in their ... annual tradeshow and conference, AmerisourceBergen announced a ... its Pharmacy Services Administration Organization and help independent ...
(Date:7/30/2015)... 2015 AACC welcomed thousands of medical ... Annual Meeting & Clinical Lab Expo in ... meeting showcased revolutionary advancements in clinical testing technology ... providers to diagnose patients quickly and accurately and ... As of Wednesday, July 29, more ...
Breaking Biology Technology:MiMedx To Present At 35th Annual Canaccord|Genuity Growth Conference 2E-QURE Corp Signs Second Distribution Agreement in Israel 2E-QURE Corp Signs Second Distribution Agreement in Israel 3AmerisourceBergen Unveils Suite of Enhanced Capabilities for Independent Pharmacies at ThoughtSpot 2015 2AmerisourceBergen Unveils Suite of Enhanced Capabilities for Independent Pharmacies at ThoughtSpot 2015 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4
... created by researchers at Canada,s National Institute for Nanotechnology ... level of control over individual electrons, a development that ... of a single atom of silicon and measuring less ... quantum dots ever created. , Quantum dots ...
... Topical Gel Provides Ease, Efficacy and Excellent TolerabilityCORONA, Calif., ... WPI ), a leader in generic and specialty branded ... Administration (FDA) has approved GELNIQUE(TM) (oxybutynin chloride) Gel 10%, ... of overactive bladder (OAB) with symptoms of urge urinary ...
... ROI Opportunity for Consumers in Shortest Period of ... examines the potential investment in targeted therapies that ... new report released today by the Deloitte Center ... adoption of personalized medicine to produce a positive ...
Cached Biology Technology:Smallest ever quantum dots bring real world applications closer 2Watson's GELNIQUE(TM) (oxybutynin chloride) Gel 10% Approved by FDA for the Treatment of Overactive Bladder 2Watson's GELNIQUE(TM) (oxybutynin chloride) Gel 10% Approved by FDA for the Treatment of Overactive Bladder 3Watson's GELNIQUE(TM) (oxybutynin chloride) Gel 10% Approved by FDA for the Treatment of Overactive Bladder 4Adoption of Personalized Medicine May Yield Significant ROI; Time to Achieve Benefit Varies Among U.S. Health Care Stakeholders, According to Deloitte Report 2Adoption of Personalized Medicine May Yield Significant ROI; Time to Achieve Benefit Varies Among U.S. Health Care Stakeholders, According to Deloitte Report 3Adoption of Personalized Medicine May Yield Significant ROI; Time to Achieve Benefit Varies Among U.S. Health Care Stakeholders, According to Deloitte Report 4