Navigation Links
Researchers find an essential gene for forming ears of corn
Date:9/24/2008

Cold Spring Harbor Laboratory (CSHL) professor David Jackson, Ph.D., and a team of plant geneticists have identified a gene essential in controlling development of the maize plant, commonly known in the United States as corn. The new research extends the growing biological understanding of how the different parts of maize arise--important information for a plant that is the most widely planted crop in the U.S. and a mainstay of the global food supply.

The researchers found that a gene called sparse inflorescence1, or spi1, is involved the maize plant's synthesis of the growth hormone auxin. This chemical messenger is familiar to biology students, who learn that it is produced by the tip of a growing shoot. When the hormone is applied to only one side of the shoot, that side grows faster, causing the tip to bend.

In a much more complex process, auxin also helps to shape structures such as leaves or the female organs (ears) and male organs (tassels) of corn. The initial stages of these structures are called meristems, which consist of versatile, undifferentiated cells analogous to the stem cells found in animals. Jackson and colleagues from UC San Diego, including Andrea Gallavotti who spent one year in Jackson's lab to perform some of this work, and at California State University at Long Beach and Pennsylvania State University, found that meristems emerge from an interplay between the synthesis of auxin by various cells and its motion between them. Disrupting either its production (by causing a mutation in the spi1 gene) or its motion results in stunted, defective organs.

Eudicots vs. Monocots

Much has been learned in the past about organ development in the cress plant known as Arabidopsis, which biologists regard as a "model organism" for plant research, much as the lab mouse has served as a model for research on mammalian biology. Arabidopsis is in a plant group called eudicots, however, while maize a
'/>"/>

Contact: Peter Tarr
tarr123@gmail.com
516-367-8455
Cold Spring Harbor Laboratory
Source:Eurekalert

Page: 1 2

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Researchers discover new strategies for antibiotic resistance
8. Researchers find new taste in fruit flies: carbonated water
9. Binghamton University researchers investigate evolving malaria resistance
10. UIC researchers find promising new targets for antibiotics
11. Researchers develop simple method to create natural drug products
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/29/2014)... parents of preterm babies latest research from the ... become teenagers, the brains of many preterm children can perform ... study conducted by the University,s Robinson Research Institute ... no brain injury in early life, their cognitive abilities as ... peers. , However, the results of the study, published in ...
(Date:7/28/2014)... approved by the U.S. Food and Drug Administration (FDA) ... certain bacterial pathogens inside human cells, including those that ... findings, published in mBio , the online open-access ... new way of identifying non-antibiotic drugs that could one ... of drugs on the list inhibit the growth of ...
(Date:7/28/2014)... Ariz. - Reactions among minerals and organic compounds in ... carbon cycle, they provide energy for the deep biosphere, ... However, very little is known about how minerals influence ... State University have demonstrated how a common mineral acts ... negating the need for toxic solvents or expensive reagents. ...
Breaking Biology News(10 mins):Preterm children's brains can catch up years later 2New route to identify drugs that can fight bacterial infections 2Mineral magic? Common mineral capable of making and breaking bonds 2Mineral magic? Common mineral capable of making and breaking bonds 3
... for Research in Vision and Ophthalmology (ARVO) is pleased ... recipients will be acknowledged at the ARVO 2012 Annual ... Proctor Medal: Peter Sterling, PhD, Mildred Weisenfeld Award ... FARVO, Cogan Award: Jeffrey L. Goldberg, MD, PhD, Friedenwald ...
... AMHERST, Mass. A team of kinesiology researchers led ... Amherst recently received a 2.5-year, $975,000 grant through the ... to study how the average 100-lb. equipment load carried ... missions, affects their survivability, likelihood of injury and ability ...
... Md. - The first Maryland municipality to earn a ... is the Town of Berlin on the Eastern Shore. ... by the University of Maryland,s Environmental Finance Center - ... as well as revitalize and improve their long-term quality ...
Cached Biology News:2012 ARVO Award recipients honored at annual meeting 2Kinesiology team gets $975,000 Defense grant to study effects of heavy loads on soldiers 2Maryland gets its first 'Certified Sustainable' community: Berlin 2
(Date:7/30/2014)... 2014 LayerBio, Inc., an MIT spinoff ... first round of seed financing from friends and family ... to develop a novel sustained-release product for ophthalmology. , ... and their commitment to this important work," said Dr. ... one of many areas in which innovations in drug ...
(Date:7/29/2014)... technologists have hurdled a number of significant technological ... revolutionary observing technology originally created for the James ... Principal Investigator Harvey Moseley, a scientist at NASA,s ... demonstrated that electrostatically actuated microshutter arrays that ... are as functional as the current technology,s ...
(Date:7/29/2014)... 2014 Human Longevity, Inc. (HLI), a genomics ... extending the healthy, high performance human life span, today ... an expert in machine learning and machine translation as ... from Google where he was Distinguished Research Scientist and ... to HLI Co-Founder and CEO, J. Craig Venter ...
(Date:7/29/2014)... a new way of manufacturing microstructured surfaces that ... self-assembly of carbon nanotubes, could exhibit a variety ... and strength, or the ability to repel water ... that mechanical forces can be used to direct ... we can independently control the mechanical properties ...
Breaking Biology Technology:Revolutionary microshutter technology hurdles significant challenges 2Revolutionary microshutter technology hurdles significant challenges 3Revolutionary microshutter technology hurdles significant challenges 4Franz Och, Ph.D., Expert in Machine Learning and Machine Translation, Joins Human Longevity, Inc. as Chief Data Scientist 2Franz Och, Ph.D., Expert in Machine Learning and Machine Translation, Joins Human Longevity, Inc. as Chief Data Scientist 3A new way to make microstructured surfaces 2
... WuXi PharmaTech (NYSE:,WX), a leading pharmaceutical, biotechnology and ... in China and the United,States, today announced that ... Vice,President of Strategy., (Logo: http://www.newscom.com/cgi-bin/prnh/20040705/CNM002LOGO ... Yu worked at Pfizer Inc., where,she co-led Pfizer,s ...
... Archi-Tech Systems, a,leading provider of pharmaceutical ... PromoTrack, a new solution custom-designed to,rapidly measure ... promotions. Archi-Tech has tailored its proven DART ... marketers, seamlessly,integrating disparate promotional campaign and Rx ...
... Inc.,(TSX: SDI) today announced that it has entered ... Medical for Spectral,s Endotoxin,Activity Assay (EAA(TM)), the only ... the terms of the agreement, BB Medical will ... "BB Medical is a leading distributor of medical ...
Cached Biology Technology:WuXi PharmaTech (NYSE: WX) Appoints Dr. Debra Yu as VP of Strategy 2Pharmaceutical Marketing Done Right: Archi-Tech Systems Unveils Version of Proven Analytics Solution for Campaign Management 2Spectral announces exclusive distribution agreement in Russia for its EAA(TM) Sepsis Diagnostic Assay 2
Designed for use with the Agencourt CleanSEQ and Agencourt AMPure 384-well SPRI reagent kits. For use with 384-well thermal cycling plates....
... Removal , , Removes ... cross-reactivity with other proteins , Simple, just ... Economical new surface technology, not based on ... with protein analysis. SurfactAway offers a simple ...
... SDS and Non-ionic Detergent Removal ... , Very selective, virtually no cross-reactivity with ... and discard pellet , Economical new ... , Detergents can often interfere with protein ...
... 3000 workstation automates a wide array of ... Proteomic Sample Preparation to Bio-Molecular and Cell ... of the Caliper Sciclone enables numerous combinations ... meet the needs of a given application, ...
Biology Products: