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:6/23/2015)... , June 23, 2015   Valencell, ... announced the results of a recent study that ... on the wrist during activity. In a study ... was compared along with the Apple Watch against ... measuring heart rate during activity. The study demonstrated ...
(Date:6/18/2015)... June 18, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... on the growing mobile commerce market announces that its Wocket® ... on "Money on the Mark", scheduled to air on WABC ... June 20 th . The broadcast air- ... 7:00 to 8:00pm EST. NXT-ID, Inc.,s CEO Gino Pereira ...
(Date:6/17/2015)... June 17, 2015  Synaptics Inc. (NASDAQ: ... today announced that Xiaomi, one of the world,s ... ClearPad ® family of capacitive touchscreen ... circuits (DDICs) for its latest smartphones, the Xiaomi ... for full in-cell display solutions and DDICs in ...
Breaking Biology News(10 mins):Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 2Valencell Delivers Breakthrough Heart Rate Accuracy on the Wrist 3NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 2NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 3Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 2Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 3
... of Illinois blueberry and blackberry wines, University of Illinois ... carbohydrate absorption and assimilation. And that could mean a ... blood sugar. "We,re thinking about a dealcoholized ... the alpha-amylase and alpha-glucosidase enzymes and also make use ...
... at the University of Helsinki and the Folkhlsan ... has in collaboration with an international group of ... with compulsive tail chasing in dogs. A questionnaire ... between compulsive behavior in dogs and humans: early ...
... 2012   Neurotechnology , a provider of high-precision biometric ... the availability of NPointer, a new tool for computer ... of a mouse or touch pad. The new program, ... special hardware, just a standard webcam and the NPointer ...
Cached Biology News:Drink made from berry wine may provide tasty drug for diabetes 2Canine tail chasing resembles human obsessive compulsive disorders 2Canine tail chasing resembles human obsessive compulsive disorders 3NPointer from Neurotechnology Uses Hand Gestures to Control and Navigate Computer Programs Without a Mouse or Touchpad 2
(Date:7/2/2015)... , July 2, 2015  Spherix Incorporated (Nasdaq: ... fostering and monetization of intellectual property, today announced a ... Spherix Incorporated v. Verizon Services Corp. et al. , ... for the Eastern District of Virginia ... 1, 2015 interpreting certain key claims in favor of ...
(Date:7/1/2015)... ... July 01, 2015 , ... It is now possible to ... single photon emission computed tomography (SPECT) according to researchers from Amen Clinics, ... over 20,000 brain scans and is believed to be the largest brain imaging study ...
(Date:7/1/2015)... BANGALORE, India , July 1, 2015 /PRNewswire/ ... uses next generation sequencing technology to empower cancer care, ... as chief executive officer. In his expanded role ... for all strategy, business expansion and worldwide operations effective ... as Strand,s chairman and CEO since its founding in ...
(Date:7/1/2015)... ... , ... A newly launched business plan contest will ask startup companies from ... life sciences R&D. The Pistoia Alliance President’s Startup Challenge 2015 will see small and ... of expert mentorship from a senior industry figure drawn from the Pistoia Alliance membership. ...
Breaking Biology Technology:Spherix Issues A Litigation Update 2Spherix Issues A Litigation Update 3Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 2Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 3Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 4Strand Life Sciences Names Scott A. Storrer CEO as Company Continues Global Expansion with Focus on Precision Medicine Product 2Strand Life Sciences Names Scott A. Storrer CEO as Company Continues Global Expansion with Focus on Precision Medicine Product 3Pistoia Alliance Launches Startup Challenge 2Pistoia Alliance Launches Startup Challenge 3
... from a more versatile vector , High-Level ... Tagging in E. coli , Katherine Felts ... , Stratagene has improved the Affinity ... This new E. coli cloning and expression,vector is ...
... Retroviral libraries with high-titer efficiency and ... ,ViraPort Retroviral cDNA Expression Libraries , Katherine ... Jamie,Limjoco ,Anna Waesche Peter Vaillancourt ... human cDNA expression libraries inserted into the,high-titer ...
... Reliable, PCR-based mycoplasma detection , Douglas ... , Stratagene introduces the Mycoplasma PCR Primer Set ... method which specifically amplifies an 874-bp,PCR product from ... contains an internal,control template that serves as a ...
Cached Biology Technology:High-Level Protein Expression, One-Column Purification, and FLAG,Epitope Tagging in E. coli 2High-Level Protein Expression, One-Column Purification, and FLAG,Epitope Tagging in E. coli 3High-Level Protein Expression, One-Column Purification, and FLAG,Epitope Tagging in E. coli 4High-Level Protein Expression, One-Column Purification, and FLAG,Epitope Tagging in E. coli 5High-Level Protein Expression, One-Column Purification, and FLAG,Epitope Tagging in E. coli 6High-Level Protein Expression, One-Column Purification, and FLAG,Epitope Tagging in E. coli 7High-Level Protein Expression, One-Column Purification, and FLAG,Epitope Tagging in E. coli 8Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 2Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 3Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 4Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 5Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 6Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 7Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 8Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 9Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 10Functional Cloning Using,ViraPort Retroviral cDNA Expression Libraries 11A New PCR-based Mycoplasma Detection Method 2A New PCR-based Mycoplasma Detection Method 3A New PCR-based Mycoplasma Detection Method 4A New PCR-based Mycoplasma Detection Method 5A New PCR-based Mycoplasma Detection Method 6
... identification through targeting resequencing. This ... assay validation/optimization, high throughput PCR setup ... samples and sequence alignment and analysis.,Agencourts ... and highly accurate identification of SNP ...
... statistics and statistical interpretation to researchers, ... As an accepted organizational standard for ... for novice users and includes the ... offers a powerful JMP Scripting Language ...
... Microarray plates are ideal for use as source ... handling applications (down to 5µl). These plates are ... design. Features 384 round ... 70µl well volume (cylindrical well), 55µl well ...
... medium is specifically formulated for mounting tissue ... been stained with immunohistochemical methods for viewing ... use with chromogens, such as AEC, that ... Faramount dries completely when slides are cover-slipped ...
Biology Products: