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:10/17/2014)... have shown for the first time how bacteria can ... giving them the opportunity to get tremendous insights into ... study also discovered the bacterial growth in chronic lung ... slowed down by the immune cells. The researchers discovered ... "suffocate" the bacteria, forcing the bacteria to switch to ...
(Date:10/16/2014)... new synthesis of recent research findings to inform their ... two states. , The Ecology and Management of ... Synthesis of the Relevant Biophysical Science and Implications for ... the U.S. Forest Service,s Pacific Northwest Research Station, is ... a synthesis of the large body of scientific information ...
(Date:10/16/2014)... Northridge, Calif. (October 16, 2014) – Post-menopausal women ... effect on hormone levels or genital bleeding, after ... of an investigational fermented soy germ-based nutritional supplement ... according to a new peer-reviewed pilot study reported ... Society (NAMS) annual scientific meeting. , "These ...
Breaking Biology News(10 mins):Scientists opens black box on bacterial growth in cystic fibrosis lung infection 2New report synthesizes best available science on management of moist mixed-conifer forests 2S-equol supplements associated with improved measures of reproductive health in postmenopausal women 2
... necks and tails, sauropod dinosaurs---famous as the Sinclair gasoline logo ... part because they all seem to look alike. , ... were common in North America during the middle of the ... extinction by more specialized plant-eaters at the end of that ...
... of a female fly is a complicated business of tapping, ... all that is needed to produce this complex behavior, according ... journal Cell. , The gene encodes the Fruitless protein. Male ... as a result of sex-specific splicing of the mRNA. The ...
... prion proteins are little understood disease agents involved in ... people, mad cow disease in cattle and chronic wasting ... that a variant form of abnormal prion protein--one lacking ... signal cells to start the lethal disease process, according ...
Cached Biology News:Skull study sheds light on dinosaur diversity 2Skull study sheds light on dinosaur diversity 3Single gene is genetic switch for fly sexual behavior 2Single gene is genetic switch for fly sexual behavior 3Variant prion protein causes infection but no symptoms 2
(Date:10/22/2014)... VANCOUVER , Oct. 22, 2014 /PRNewswire/ - iCo ... ICOTF), today announced next steps for its Oral ... findings from its in vitro work ... therapy.  iCo now plans to complete pre clinical ... an initial Phase 1A clinical trial, utilizing approximately ...
(Date:10/20/2014)... The report “Pharmacy Automation Systems Market by ... Systems, Table-top Counters) by End-user (Inpatient Pharmacy Automation, ... to 2019” analyzes and studies the major market ... Asia-Pacific, and the Rest of the World (RoW). ... spread through 300 pages and in-depth TOC on ...
(Date:10/20/2014)... /PRNewswire/ - BIOREM Inc. (TSXV: BRM) ("Biorem" or "the Company") today ... to $5.8 million and provides a good start to Q4.  The ... America and one in the Middle East ... record levels," said Peter Bruijns , President & CEO. "Total ... Q3 than they have been for any complete year since the ...
(Date:10/20/2014)... OncLive® is pleased to ... Thomas Jefferson University has joined its Strategic Alliance ... Partnership program, the Sidney Kimmel Cancer Center at ... of the Center’s cutting-edge research programs, comprehensive approach ... other health care professionals from the Sidney Kimmel ...
Breaking Biology Technology:iCo Therapeutics Announces Advancement of Oral Amphotericin B Program 2iCo Therapeutics Announces Advancement of Oral Amphotericin B Program 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 2Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 3Pharmacy Automation Systems Market worth $4,566.2 Million by 2019 - New Research Report by MarketsandMarkets 4Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3
... Nov. 30, 2011 iBio, Inc. (NYSE AMEX: IBIO) ... "Plan") to satisfy the requirements for continued listing on the ... Department management (the "Staff") for their review, and that the ... connection therewith.  As previously announced, the Staff indicated that its ...
... --  Quantum Leap Innovations announced today the appointment ... Michael Cusumano is the Sloan Management Review Distinguished Professor ... School of Management, with a joint appointment in the ... STAYING POWER , covers six enduring principles for managing ...
... Calif., Nov. 29, 2011 Molecular Devices, LLC, the ... industry, today announced the release of a much-anticipated customizable ... analysis tools. (Logo:  http://photos.prnewswire.com/prnh/20100406/SF82092LOGO ... will be showcased at the 51st annual meeting of ...
Cached Biology Technology:iBio, Inc. Submits Plan to Satisfy NYSE Amex Continued Listing Standards 2iBio, Inc. Submits Plan to Satisfy NYSE Amex Continued Listing Standards 3Michael Cusumano, MIT's Sloan Distinguished Professor of Management, Joins Quantum Leap Innovations Board of Directors 2Michael Cusumano, MIT's Sloan Distinguished Professor of Management, Joins Quantum Leap Innovations Board of Directors 3Michael Cusumano, MIT's Sloan Distinguished Professor of Management, Joins Quantum Leap Innovations Board of Directors 4Innovative MetaMorph® NX Software Shatters Barriers Between Researchers and Image Analysis Goals with Exclusive Visual Workflow 2Innovative MetaMorph® NX Software Shatters Barriers Between Researchers and Image Analysis Goals with Exclusive Visual Workflow 3
... CARV II Confocal Imager delivers high resolution ... use and cost effective optical package that ... multi-point confocal scanning, combined with high quantum ... real-time imaging and recording at up to ...
... EZ DNA Methylation Kit uses a simplified ... DNA methylation analysis. The kit is based ... place between cytosine and sodium bisulfite where ... DNA Methylation Kits innovative in-column desulphonation reaction ...
... Phosphate Assay Kit is based on quantification ... Green, molybdate and free orthophosphate. The rapid ... conveniently measured on a spectrophotometer (600-660 nm) ... colorimetric assay kits have been optimized to ...
... x-ray detectors from KUBTEC represents a stand-alone, ... to 16 bit digital interface. The large ... sensor with pixel spacing down to 48 ... x-ray energies (10-50 kV) and an extended ...
Biology Products: