Navigation Links
UC San Diego biologists solve plant growth hormone enigma

explained Youfa Cheng, a postdoctoral fellow working with Zhao. "Even with the advances in technology, it took about three years to produce plants lacking at least four of the 11 YUCCA genes."

Disrupting one YUCCA gene did not have any obvious effects. Therefore, there is overlap in the functions of the genes in this family. However, when two or more YUCCA genes were inactivated, the plants had developmental defects. The defects, including flowers with missing or misshapen parts, or deformations in the tissues that transport water and nutrients throughout the plant, differed depending on which combinations of genes were deleted.

The researchers say that this finding was surprising because most people in the field thought that where auxin was made did not really matter. The widely held view was that auxin could just be transported wherever it was needed. Not so, because turning auxin off in specific tissues of the plant led to defects in those tissues, while the rest of the plant appeared normal.

"Knowing which auxin genes are activated when should make it possible to modify plant development," said Zhao. "It wouldn't require adding any new genes to the plant, just changing when the appropriate auxin genes were on or off could alter growth. For example, to make seedless tomatoes, one could activate auxin in the floral organs before fertilization has taken place."

Applying auxin to the flowers by hand can also induce seedless tomatoes, or other seedless fruit, but this method is too tedious to be useful for commercial purposes. Seedless fruits would not just be novelty items. For example, Zhao points out that seeds significantly increase the effort and waste involved in producing tomato sauce.

"This study is a real tour de force," commented Martin Yanofsky, a professor of biology at UCSD, who was not one of the authors of the study. "People have been trying to figure out auxin for decades. By carefully inactiva
'"/>

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:7/25/2014)... is a complex congenital central nervous system disease ... the neural tubes during the embryonic phase. Many ... fecal incontinence and neurocognitive retardation. Such problems decrease ... life. Researchers at Ankara Physical Medicine and Rehabilitation ... performance in children with SB, using the Pediatric ...
(Date:7/25/2014)... girls reach puberty is influenced by ,imprinted genes,a subset of ... gene. This is the first evidence that imprinted genes ... of this study were published today in the journal ... menarche, is a marker for the timing of puberty in ... varies between girls, is an inherited trait, and is linked ...
(Date:7/25/2014)... a molecular testing panel developed at UPMC greatly ... surgery for patients with thyroid nodules and cancer, ... Institute (UPCI), partner with UPMC CancerCenter., The test, ... other diagnostic testing agencies, improved the chances of ... percent, according to the study published this month ...
Breaking Biology News(10 mins):Could age of first period influence development of diseases in older women? 2Test increases odds of correct surgery for thyroid cancer patients 2Test increases odds of correct surgery for thyroid cancer patients 3
... European College of Neuropsychopharmacology (ECNP) is pleased to ... 2009 ECNP Neuropsychopharmacology Award in Basic Science Research ... into the neurochemical basis of substance addiction. ... in the field of neuropsychopharmacology and its closely ...
... Researchers have made significant advances in the treatment of metastatic ... treat successfully once it has started to spread according ... congress, ECCO 15 ESMO 34 [1], in Berlin on ... seen rapid and dramatic shrinking of metastatic tumours in patients ...
... research team at the National Institute of Standards and ... possible cancer therapy has uncovered a delicate balancing act ... says they should be. Just like individuals in a ... because they get close together, but not too close. ...
Cached Biology News:Trial of new treatment for advanced melanoma shows rapid shrinking of tumors 2Trial of new treatment for advanced melanoma shows rapid shrinking of tumors 3Therapeutic nanoparticles give new meaning to sugar-coating medicine 2
(Date:7/25/2014)... Sinovac Biotech Ltd. (Nasdaq: SVA ), a leading ... today announced that it will release its unaudited financial results ... close on Thursday, August 14, 2014 EDT. The Company will ... Friday, August 15, 2014, at 8:00 a.m. EDT (Friday, August ... the Company,s financial results and provide an update on recent ...
(Date:7/24/2014)... July 24, 2014 -- A novel combination of microscopy ... of Energy,s Oak Ridge National Laboratory an unprecedented look ... unusual physical and electrochemical properties. , The research ... affects the surface of a perovskite manganite, a complex ... new avenue to understand surface behavior could benefit researchers ...
(Date:7/24/2014)... , July 24, 2014  Now available is a ... Rehealth Regenerative Therapies , located in ... physically active people a new health option: stem ... of age, countless patients suffer from joint and muscle ... as muscle tears, torn rotator cuff, tennis elbow, and ...
(Date:7/24/2014)... -- ECC West Africa, LLC (ECC) signed a contract in ... Hospital (UCH) Ibadan Board of Management for the first ... and operate and maintain a new, state-of-the-art Cancer Institute ... first of the 4-phase project, ECC will conduct feasibility ... Ibadan intends to finance and develop the Cancer Institute ...
Breaking Biology Technology:Sinovac to Host Conference Call to Report Second Quarter 2014 Unaudited Financial Results 2ORNL study reveals new characteristics of complex oxide surfaces 2Stem Cells In Sports Injuries, Joints And Muscular Pain 2Stem Cells In Sports Injuries, Joints And Muscular Pain 3ECC Signs a Contract for the Finance, Design, and Construction of a Premier Cancer Institute in Ibadan, Nigeria 2
... Researcher Appreciation Event ... ... PHOENIX, Oct. 3 ThirdBiotech Inc., http://www.thirdbiotech.com, a biotechnology incubator ... Appreciation Event to be held on Thursday, October 23rd, 2008,between noon and ...
... http://www.amdl.com ),AMDL, Inc. (Amex: ADL ), a leading ... the US, today announced that the,Company will present at ... on Tuesday, October 7, 2008 at 10:30 a.m. ET. ... York Hotel in the Morosco Room., The Maxim ...
... Support R&D Efforts and Clinical Trials Advancing,the ... Oct. 3 Micromet, Inc. (Nasdaq:,MITI) ("Micromet" ... proprietary antibodies for the treatment of cancer, ... has closed its previously,announced $40 million private ...
Cached Biology Technology:First Annual Arizona Biotech Day Announced for October 23rd 2008 2First Annual Arizona Biotech Day Announced for October 23rd 2008 3AMDL, Inc. to Present at Maxim Group Growth Conference October 7, 2008 2AMDL, Inc. to Present at Maxim Group Growth Conference October 7, 2008 3Micromet Closes $40 Million Private Equity Placement 2Micromet Closes $40 Million Private Equity Placement 3Micromet Closes $40 Million Private Equity Placement 4
... It has been demonstrated that oxidative stress ... and cancer. Oxidative stress is the condition ... and physiological antioxidants exist leading to the ... response to oxidative stress is through several ...
... Human Serum-Single Donor • Human serum is ... found to be negative by a test ... Antibodies to Human Immunodeficiency Virus (Anti-HIV 1/2), ... Hepatitis B Surface Antigen (HbsAg) and Non-reactive ...
... Clean-up Micro Kit provides a fast and simple ... X-100 and other detergents from small samples of ... patented protein resin as an ion exchanger. Each ... of either acidic or basic protein.A complete kit ...
Compound(s) screened through any number of client selected assays. Client also selects number of concentrations and replicates....
Biology Products: