HOME >> BIOLOGY >> NEWS
Hunt for a new plant hormone points to carotenoids

In looking for clues to the identity of a mysterious new plant hormone, a research team lead by Ottoline Leyser of the University of York has come one step closer in finding a gene required for the hormone's synthesis. The biochemical activity of this synthesis protein potentially offers a significant clue to the nature of the hormone, which is thought to coordinate rates of growth between different plant tissues.

In plants, as in animals, communication between different parts of the body is vital if the left hand is to know what the right hand is doing. In animals, this is achieved by a combination of the nervous system and hormone signals. Plants don't have a nervous system, so hormonal signals have a greater role to play. Darwin was instrumental in discovering the first known plant hormone, auxin, and since then a handful of additional long-distance chemical messengers have been found in plants. This number is surely insufficient to accomplish the complex coordinated progression of a plant through its life cycle and the plant's diverse responses to changing environmental conditions. Many plant biologists therefore believe that there are more plant hormones out there waiting to be discovered.

Recent results from work on pea, petunia, and the small weed Arabidopsis have suggested the existence of one such novel plant hormone. The main role of this hormone is to regulate the degree of shoot branching. The hormone is apparently made throughout the plant, but hormone made in the roots is able to travel up the plant to influence branching in the shoot, suggesting that it may play a role in balancing root and shoot growth.

In this issue of Current Biology, Ottoline Leyser and co-workers describe the identification of a gene that is essential for the synthesis of this novel hormone. The gene encodes a protein that they show can cleave carotenoids, such as the chemicals responsible for the orange pigment in carrots. This suggests that the new hormo
'"/>

Contact: Heidi Hardman
hhardman@cell.com
617-397-2879
Cell Press
26-Jul-2004


Page: 1 2

Related biology news :

1. Pack-MULEs are toting a new look at plant evolution
2. New research shows plants can shuffle and paste gene pieces to generate genetic diversity
3. Pollutant causes delayed flowering in plants
4. NSF awards 22 new projects for plant genome research
5. K-State, other universities to study how climate affects plant evolution
6. New fruitfly model of diabetes has future implications for pancreatic cell transplantation
7. Pig-human transplantation not PERVerted
8. Purdue study finds antioxidant protects metal-eating plants
9. Patented process preserves transplant tissues/organs
10. New discovery may help transplants survive
11. Babies with DiGeorge syndrome saved by immune supression, thymus transplant

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Hunt for new plant hormone points carotenoids

(Date:7/2/2015)... , June 25, 2015 ... the addition of the "Natural Language Processing ... (Recognition, IVR, OCR, Pattern & Image Recognition) - ... offering. The key vendors occupying the ... IBM Corporation, Microsoft Corporation, NetBase Solutions, SAS Institute ...
(Date:6/29/2015)... 2015 Research and Markets( ... "Latin America Biomedical Sensors Market - Growth, Trends & ... The Latin America Biomedical Sensors market is estimated at ... over the period 2014-2020 The near future ... genetic formulation of each individual. These sensors can be ...
(Date:6/24/2015)... NEW YORK , June 24, 2015 ... favorable rate. The major drivers for the market include ... increasing number of new drug launches. Over the years, ... has increased. Between 2001 and 2010, the FDA approved ... addition, according to WIPO, Europe ...
Breaking Biology News(10 mins):Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2Latin America Biomedical Sensors Market Report 2015-2020 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 3Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 4
(Date:7/29/2015)... US-Australian drug discovery company, Novogen Limited (ASX: NRT; NASDAQ: ... progressing its ground-breaking technology platforms to Phase 1 clinical ... Company delivers the best value for shareholders. ... the Company currently had an extensive program of activities ... academic partnerships and initiatives, and he was working with ...
(Date:7/29/2015)... Station, TX (PRWEB) , ... July 29, 2015 ... ... POD® designer, manufacturer and supplier, announces the launch of their 2nd generation cell ... to the current miniPOD CT, but it also represents a new POD® design. ...
(Date:7/29/2015)... , July 29, 2015  Pfenex Inc. (NYSE ... financial results will be released on Thursday, August 13, ... Eastern Time, Pfenex management will host a conference call ... update.  A press release outlining the financial results and ... call. Please call 1-866-376-8058 (US) or 1-412-542-4131 ...
(Date:7/29/2015)... ... July 29, 2015 , ... Finding gooey or crusty ... quite normal. Although there are a considerable number of terms in popular use to ... post-sleep material is a mixture of mucus, blood cells, skin cells and dust, but ...
Breaking Biology Technology:Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 4Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 5Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 6Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 7Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 8Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 9Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 10G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 2G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 3Pfenex To Report Second Quarter 2015 Results and Provide Business Update on Thursday, August 13, 2015 2What Are ‘Eye Crusties’ Made Of? uBiome Invites Citizen Scientists to Find Out 2What Are ‘Eye Crusties’ Made Of? uBiome Invites Citizen Scientists to Find Out 3What Are ‘Eye Crusties’ Made Of? uBiome Invites Citizen Scientists to Find Out 4
Cached News: