Navigation Links
UC San Diego biologists solve plant growth hormone enigma

Gardeners and farmers have used the plant hormone auxin for decades, but how plants produce and distribute auxin has been a long-standing mystery. Now researchers at the University of California, San Diego have found the solution, which has valuable applications in agriculture.

The study, published in the July 1 issue of the journal Genes and Development, describes the discovery of a whole family of auxin genes, and shows that each gene is switched on at a distinct location in the plant. Contrary to the current thinking in the field, the research shows that the patterns in which auxin is produced in the plant influence development, a finding that can be applied to improving crops.

"The auxin field dates back to Charles Darwin, who first reported that plants produced a substance that made them bend toward light," said Yunde Zhao, an assistant professor of biology at UCSD. "But until now, the auxin genes have been elusive. Our discovery of these genes and the locations where auxin is produced in the plant can be applied to agricultural problems, such as how to make seedless fruit or plants with stronger stems."

Applying auxin to plants can have many different effects. For example, it can promote root development in cuttings, stimulate fruit development in the absence of fertilization or, in excess, kill weeds. However, this study is the first to show what happens in a plant when auxin production is turned off.

The researchers identified a family of 11 genes (YUCCA 1-11) that are involved in the synthesis of auxin. In Arabidopsis--a small plant favored by biologists because it is easy to manipulate genetically--Zhao's team inactivated combinations of the YUCCA genes and studied the effects of the inactivations on plant growth and development.

"Plant biologists have wanted to do this experiment for a long time, but only recently have new genetic tools such as 'reverse genetics' and 'activation tagging' made it possible,"
'"/>

Source:University of California - San Diego


Page: 1 2 3

Related biology news :

1. Grasping metaphors: UC San Diego research ties brain area to figures of speech
2. UC San Diego partners with Venter Institute to build marine microbial genomics cyberinfrastructure
3. Octopuses occasionally stroll around on two arms, UC Berkeley biologists report
4. GeneNotes - A novel information management software for biologists
5. NYU biologists map out early stages of embryo formation
6. FSU biologists describe key role of signal-transcribing gene during cell cycle
7. High-tech tags on marine animals yield valuable data for biologists and oceanographers
8. UCSD biologists find new evidence for one-way evolution
9. FSU biologists uncover mechanisms that shape cells for better or worse
10. NYU biologists identify gene that coordinates two cellular processes
11. MIT biologists solve vitamin puzzle
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: San Diego biologists solve plant growth hormone enigma

(Date:12/10/2014)... , Dec. 9, 2014  Valencell, a leader in ... seeing a staggering demand from its licensees for highly ... revealed, is not solely coming from fitness and health ... "A wearable is only as useful as ...
(Date:12/10/2014)... Dec. 9, 2014 CIE San Diego has launched an ... tissue that enhances care coordination among social service and care ... a second $1 million grant from the Alliance Healthcare Foundation ... will be recognized as a "Live Well San Diego" partner ...
(Date:12/10/2014)... 2014     Jifflenow ...   Jifflenow, a leading provider ... business-to-business (B2B) events, today announced a partnership with ... communication (NFC), Bluetooth low energy (BLE), and cloud-based ...
Breaking Biology News(10 mins):Wearable Technology Products Demand Highly Accurate Biometric Technology 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3
... at Rice University, has been awarded the prestigious Foresight ... the California think tank dedicated to the beneficial implementation ... for the prize, specifically for his work on the ... served as an experiment to explore the possibility of ...
... American Society for Microbiology (ASM) has been honored with ... of its public outreach initiatives. The awards were ... The Society,s MicrobeWorld Video series received the award for ... video series strives to increase public understanding and appreciation ...
... 16, 2008Once believed to be important only for bone ... critical function in maintaining the immune system throughout life. ... deficiency are clearly documented in a report in the ... Medicine , a peer-reviewed journal published by Mary Ann ...
Cached Biology News:Rice's James Tour wins Feynman Prize 2Vitamin D deficiency in infants and nursing mothers carries long-term disease risks 2
(Date:1/22/2015)... 2015   Cypher Genomics, Inc., the leading ... SQNM ), the leading molecular diagnostics company, ... noninvasive prenatal tests (NIPT). Through this agreement, Sequenom ... to advance analysis of clinically-relevant fetal sub-chromosomal variants ...
(Date:12/25/2014)... 2014 The report “Service Quality Management ... & Provider Type - Global Advancements, Worldwide Forecasts & ... in-depth analysis and forecasting of revenues. , Browse ... pages and in-depth TOC on “Service Quality Management (SQM) ...
(Date:12/24/2014)... , Dec. 24, 2014   BioLife Solutions , Inc. (NASDAQ: ... of proprietary clinical grade hypothermic storage and ... for cells and tissues  ("BioLife" or the "Company"), today ... Stockholders on May 4, 2015 (the "Annual Meeting"). ...
(Date:12/24/2014)... SoundConnect’s 2015 next ... edge communication technology, provide continued education and inform ... series demonstrates online communication features and benefits; empowering ... most innovative and powerful tools. , According to ...
Breaking Biology Technology:Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4BioLife Solutions Sets Date for Annual Meeting of Stockholders 2SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3
... SAN FRANCISCO, Nov. 2, 2011 Jennerex, Inc., a ... commercialization of first-in-class targeted oncolytic products for cancer, today ... clinical trial in advanced liver cancer patients will be ... Annual Meeting of the American Association for the Study ...
... a premature ageing disease that affects children causing them to ... rate. The study is the first to outline how ... could provide a model for understanding processes that cause us ... such as reducing degeneration of some tissues in older age, ...
... World, Paul Blom and Ton van Mol from the ... thin, flexible sheets of organic light-emitting diodes (OLEDs) using ... bendable materials could oust the conventional light bulb and ... for everything from lighting tiles and strips in homes ...
Cached Biology Technology:Jennerex to Present Final Survival Data From Randomized Phase 2 Clinical Trial of JX-594 in Advanced Liver Cancer at American Association for the Study of Liver Diseases Annual Meeting 2Jennerex to Present Final Survival Data From Randomized Phase 2 Clinical Trial of JX-594 in Advanced Liver Cancer at American Association for the Study of Liver Diseases Annual Meeting 3Jennerex to Present Final Survival Data From Randomized Phase 2 Clinical Trial of JX-594 in Advanced Liver Cancer at American Association for the Study of Liver Diseases Annual Meeting 4Cellular repair could reduce premature aging 2Cellular repair could reduce premature aging 3Researchers roll out a new form of lighting 2
... Rotofor purification system, 100-120 V, is used ... isoelectric focusing (IEF). The system includes both ... ml) focusing chambers, chassis, harvesting apparatus, cooling ... (pH 3-10), 60 ml syringe, colored protein ...
...
... B-Phycoerythrin Labeling Kit - NH2 is primarily ... for immunostaining and cellular proteins for tracing. ... has succinimidyl group (NHS), and can easily ... of IgG or other proteins without any ...
... ,High Quality, Functionally-Validated, Ion Channel Cell Lines ... having a critical role in nerve and ... function in pain, CNS and the heart. ... investigated in therapeutic areas, such as neuropathic ...
Biology Products: