Navigation Links
No more sneezing, allergen-free house plants
Date:8/31/2012

New research published in BioMed Central's open access journal BMC Plant Biology shows how targeting two bacterial genes into an ornamental plant (Pelargonium), can produce long-lived and pollen-free plants.

Pelargoniums ('Geraniums' and 'Storkbills') have been cultivated in Europe since the 17th century and are now one of the most popular garden and house plants around the world. They have been selectively bred to produce a wide range of leaf shapes, flowers and scents, and have commercial traits such as early and continuous flowering, pest and disease resistance and consistent quality.

In a collaborative project, researchers from the Instituto de Biologa Molecular y Celular de Plantas (IBMCP) and BIOMIVA S.L. (Spain) modified Agrobacterium tumefaciens (the bacteria responsible for causing crown gall disease) to carry altered genes. One gene, encoding an enzyme Isopentenyl phosphotransferase (ipt) was designed to increase the amount of cytokinin (a plant hormone), and consequently prevent aging (senescence), and the second was engineered to selectively destroy pollen-producing anthers.

The modified DNA was injected into Pelargonium zonale cells by the bacteria, where it was subsequently integrated into the plant's genome. Individual plants were then grown from these transgenic cells. P. zonale plants carrying the modified genes were more compact with increased number of branches and leaves than normal. These plants also had small leaves and flowers, with more vibrant colours, and the extra cytokinin in the leaves meant that these plants lived longer than usual.

Dr Luis Caas, one of the researchers from IBMCP explained, "The ipt enzyme catalyzes the rate-limiting step for cytokinin biosynthesis in plants and consequently extra ipt, provided transgenically, produces more cytokinin and prevents the plant cells from aging. In addition, the use of an anther-specific promoter from pea driving the expression of a bacterial gene (ribonuclease), prevents the development of male progenitor cells into anthers and pollen, resulting in pollen-free flowers."

The generation of long-life plants is good news for the gardener who wants a display of flowers for as long as possible and the lack of pollen not only is great for hay fever sufferers but also prevents accidental release of the transgenes into the environment. However the extra cytokinin does not protect against owners forgetting to water their plants.


'/>"/>

Contact: Hilary Glover
hilary.glover@biomedcentral.com
44-020-319-22370
BioMed Central
Source:Eurekalert  

Related biology news :

1. No more sneezing, allergen free house plants
2. Housekeeping mechanism for brain stem cells discovered
3. Research!America says house funding levels for FY13 could undermine medical progress
4. Jim Demitrieus, CEO of EyeLock, Invited to White House Cyber Security Event
5. Weizmann Institute solar technology to convert greenhouse gas into fuel
6. NSF Leadership in Discovery and Innovation sparks White House US Ignite Initiative
7. Caution needed with new greenhouse gas emission standards
8. Carnegie Mellon Universitys Biometrics Center Selected To House New Pedo-Biometrics Research and Identity Automation Lab
9. House funding bill will delay research progress and place new burdens on NIH
10. Chemical exposure in the womb from household items may contribute to obesity
11. Not just for the birds: Man-made noise has ripple effects on plants, too
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
No more sneezing, allergen-free house plants
(Date:12/6/2016)... , Dec. 6, 2016  Zimmer Biomet Holdings, Inc. ... has priced an offering of €500.0 million principal amount of ... principal amount of its 2.425% senior unsecured notes due 2026. ... to occur on December 13, 2016, subject to the satisfaction of ... annual basis. The Company intends ...
(Date:12/6/2016)... 2016 Securus Technologies, a leading provider ... public safety, investigation, corrections and monitoring, and the ... five (5) year funding commitment by Securus to ... rehabilitation and reentry support to more inmates and ... 2004, the Prison Entrepreneurship Program (PEP) is an ...
(Date:12/2/2016)... , December 1, 2016 ... type (Fingerprint, Voice), Future Technology (Iris Recognition System), ... Region - Global Forecast to 2021", published by ... 442.7 Million in 2016, and is projected to ... a CAGR of 14.06%.      (Logo: ...
Breaking Biology News(10 mins):
(Date:12/7/2016)... , ... December 07, 2016 , ... ... has concluded that “in the setting of previously treated, advanced pancreatic cancer, liquid ... defining the optimal patient population and timing of blood sampling may improve the ...
(Date:12/7/2016)... -- Neogen Corporation (NASDAQ: NEOG ) announced ... as its chief science officer — a new position ... Neogen effective Jan. 1. Kephart has served ... of Thermo Fisher Scientific, as well as animal health ... industry experience also includes the management of a team ...
(Date:12/7/2016)... - Zenith Capital Corp. ("Zenith" or the "Company") announces webcast details ... Company,s Annual and Special Meeting. The Zenith ... Thursday, December 15, 2016 at Mount Royal ... Mount Royal Gate SW, Calgary, Alberta , ... management information circular, containing the matters to be considered at ...
(Date:12/7/2016)... , Dec. 7, 2016  Biocom, the association for the ... statement below following passage of 21 st Century Cures ... November 30 by a 392-26 vote and in the Senate ... be attributed to Joe Panetta , president & CEO ... will give hope to millions of patients around the world. ...
Breaking Biology Technology: