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:


(Date:2/7/2017)... Feb. 7, 2017 Zimmer Biomet Holdings, Inc. ... healthcare, will present at the LEERINK Partners 6th Annual ... Hotel on Wednesday, February 15, 2017 at 10 a.m. ... the presentation can be accessed at http://wsw.com/webcast/leerink28/zbh .  ... conference via Zimmer Biomet,s Investor Relations website at ...
(Date:2/2/2017)... 2017   TapImmune, Inc. (NASDAQ: ... in the development of innovative peptide and gene-based ... and metastatic disease, announced today it has successfully ... a second clinical lot of TPIV 200, the ... The manufactured vaccine product will be used to ...
(Date:1/30/2017)...   Invitae Corporation (NYSE: NVTA ... today announced that it will report its fourth quarter ... on Monday, February 13, 2017, and Invitae,s management team ... p.m. Eastern / 1:45 p.m. Pacific. ... financial results, guidance, and recent developments and will spend ...
Breaking Biology News(10 mins):
(Date:2/27/2017)... and HAMILTON, Bermuda , Feb. ... ADXS ) and SELLAS Life ... on developing cancer immunotherapies, today announced that Advaxis ... novel cancer immunotherapy agent using Advaxis, proprietary ... WT1 targeted heteroclitic peptide antigen mixture (galinpepimut-S). ...
(Date:2/25/2017)... (PRWEB) , ... February 25, 2017 , ... ... Verified Clinical Trials in an ongoing effort to create meaningful change ... advocacy, and pharmaceutical research with emphasis on consumers and patients’ mental health well-being. ...
(Date:2/24/2017)...  Aethlon Medical, Inc. (Nasdaq: AEMD ), ... and CEO, Jim Joyce . In ... Saturday, Bill Gates warned world leaders that ... nuclear weapons. Mr. Gates expressed his concern, which is ... scientific terrorists have access to the necessary tools to ...
(Date:2/24/2017)... 2017 China Biologic Products, Inc. (NASDAQ: CBPO) ("China ... company in China, today announced its financial results for the ... Fourth Quarter 2016 Financial Highlights Total ... in RMB terms, or increased by 13.6% in USD terms ... of 2015. Gross profit increased by 13.3% ...
Breaking Biology Technology:
Cached News: