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:4/8/2015)... April 8, 2015  Infinisource, a leading provider ... and Morpho, a leading supplier of biometric identification ... the market,s most advanced biometrically-enabled time clock, the ... time clock is setting a bold, new standard ... for the small and mid-size employer. When connected ...
(Date:4/2/2015)... , April 2, 2015 ... tests DERMALOG by far outperforms the strongest competitors, ... maintaining high accuracy, the system is capable of ... the speed proves up to be ten times ... than its runner-up performance.      (Photo: ...
(Date:4/2/2015)... GOTHENBURG, Sweden , April 2, 2015 ... revenues for Q1 2015 attributed to somewhat higher than ... company in the year-end report 2014 that revenues for ... MSEK that the company reported for Q4 2014. The ... continue to be negative. The complete interim report will ...
Breaking Biology News(10 mins):iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 3DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3Fingerprint Cards Revises Revenues for Q1 2015 2
... MDA new report appearing in the September issue of ... that significant muscle loss is unavoidable when losing weight through ... twice the recommended daily allowance (RDA) of protein while adhering ... muscle mass and promotes fat loss. Tripling the RDA of ...
... Bethesda, MDNot only do statins extend lives by lowering cholesterol ... research in the September 2013 issue of The ... as well. Specifically, statins may reduce the rate at which ... This opens the door for using statins, or derivatives of ...
... clingy people, but "clingy" blood platelets may offer hope ... new research findings published in The Journal ... immune cells (lymphocytes) known to play a significant role ... Those attached platelets reduced the ability of the immune ...
Cached Biology News:Doubling the daily allowance of protein intake with diet and exercise protects muscle loss 2Clingy platelets suggest potential treatment strategy for rheumatoid arthritis 2
(Date:4/17/2015)... 17, 2015  US-Australian drug discovery company, Novogen, today ... Understanding with the Feinstein Institute for Medical Research ... to collaborate with the objective of developing ... collaboration brings together the drug discovery expertise of ... the Feinstein Institute in neurosciences and oncology. ...
(Date:4/17/2015)... BellBrook Labs announced today that they ... powerful Orthogonal Pooled Screening (OPS) Platform developed and ... Lankenau Institute for Medical Research (LCGC) in Wynnewood, ... successful drug discovery outcomes using far more efficient ... available nowhere else, coupled to a state-of-the-art compound ...
(Date:4/16/2015)... 16, 2015 Cambridge Semantics ... driven by Semantic Web technology, and Informa ... and services for the academic and scientific, professional ... joint solution ‘Smart Data Lake for Clinical Trial ... the 2015 Bio-IT ‘Best of Show’ Award. ...
(Date:4/16/2015)... Proove Biosciences , Inc. is pleased ... for the 2015 BIO International Convention. Hosted by ... Convention will take place June 15-18 at the Pennsylvania ... BIO contest, industry leaders will be voting for companies ... The community voting period began on April 14, 2015 ...
Breaking Biology Technology:Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 2Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 3Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 4Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 5Novogen and Feinstein Institute Join Forces to Find Effective Treatments for Brain Cancer 6BellBrook Labs and Lankenau Institute Partner to Accelerate Drug Discovery using Orthogonal Pooled Screening 2Cambridge Semantics and Informa Named Bio-IT Award Finalist for Smart Data Lake Solution for Clinical Trial and Competitive Intelligence 2Cambridge Semantics and Informa Named Bio-IT Award Finalist for Smart Data Lake Solution for Clinical Trial and Competitive Intelligence 3Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 2Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 3
... was one of the hottest topics among both attendees ... Friday at the Medical College of Wisconsin (MCW) ... the right info at the right time in the ... consultant with the Wisconsin Department of Administration , ...
... World Health Organization has laid down an urgent challenge ... to nicotine addiction, and the planet will be a ... former U.S. ambassador to Norway and the former Speaker ... to last weeks Wisconsin Life Sciences & Venture Conference ...
... Norlight Telecommunications , a Wisconsin-based provider of integrated data ... center in their recently built Wisconsin headquarters. The 4200 ... new 13,000-square-foot technology facility that includes a network management ... new headquarters. The data center is also used for ...
Cached Biology Technology:Standards Needed for Advances in Healthcare Technology 2Standards Needed for Advances in Healthcare Technology 3Standards Needed for Advances in Healthcare Technology 4AIDS and tobacco are worldwide killers: Is bioscience doing enough to stop them? 2
Fujifilm Pictro-Color Process for sharp, clear reproduction comparable to silver-halide photography. Photorealistic 400 dpi quality. A4 and A5 output....
... of media and other fluid sources for ... The speed of each individual pump is ... points, are exactly maintained. ,High-precision controlled ... tube types, which allows flow rates between ...
... narrow mouth PYREX low form culture flask is designed ... volume ratio. This flask has a heavy beaded rim ... spot. The neck O.D. is 38mm and takes a ... this flask on a heat source smaller than the ...
... The loxP-amp-loxP cassette is designed ... The prokaryotic promoter gb2 driving the ... modified version of the Em7 promoter. It ... used Tn5 promoter. A synthetic polyadenylation signal ...
Biology Products: