Navigation Links
Not just another brick in the (plant cell) wall

In a new study revealing key steps for controlling plant growth, Australian researchers have shown how the assembly of components of the plant cell wall regulates growth of root hairs. Root hairs are important structures that allow plants to absorb essential nutrients and water from the soil. The research will assist in contributing to the sustainability of Australia's plant -based industries such as, agriculture, horticulture and forestry.

Co-author Professor Tony Bacic from the ARC Centre of Excellence in Plant Cell Walls, School of Botany and the Bio21 Institute, at the University of Melbourne, said plant cell walls (plant biomass) represent the world's largest renewable resource.

"Plant sciences have become a major new driver of international research due to their central role as renewable sources of transport fuels, as functional foods to improve human health, and as a source of raw materials for industrial processes," he said.

The study has been published in the current issue of the international journal Science.

Most plant roots are covered in fine root hairs which seek out nutrients in the soil and increase the roots' surface area, allowing more water and nutrients to be absorbed.

"The root hair is therefore very important and this work could have applications for plants growing in dry and nutrient-deficient soils as they need to optimise their nutrient and water uptake," Professor Bacic said.

The root hair is a single tubular cell which grows out from the plant's root surface and is surrounded by a wall rich in complex carbohydrates and glycoproteins. This wall surrounds the cell to strengthen it, like a building scaffold.

So to study root hair growth, an international multidisciplinary team of researchers from Argentina, Australia, the United States, Denmark and Brazil targeted genes involved in the production of wall glycoproteins in the model laboratory plant Arabidopsis.

The team identified three groups of genes required for the assembly of the cell wall scaffold glycoprotein, called extensin. When the genes were prevented from functioning, the root hairs were stunted. Without these scaffold glycoproteins and their complete sugar decorations they don't form their correct molecular shape to enable root hair growth. What controls the expression of these genes is the next important question to be addressed.

"This study enhances our fundamental understanding of the growth of plants, our major renewable resource, and would not have been possible without our international collaboration through the ARC Centre of Excellence in Plant Cell Walls," said Professor Bacic.


Contact: Charlotte Crawford
University of Melbourne

Related biology news :

1. Another fisheries commission throws the science overboard in tuna decision, WWF says
2. Another reason to drink a nice cup of shade-grown joe
3. Cancer: Another step towards medication
4. Desert woodrats switch one dietary poison for another
5. Desert woodrats switch one dietary poison for another
6. The first DFG research centers to be funded for another four years
7. Another JDRF partner moves research forward with collaboration agreement for diabetes treatment
8. Ability to literally imagine oneself in anothers shoes may be tied to empathy
9. Why one way of learning is better than another
10. An answer to another of lifes big questions
11. Genetically-modified mice reveal another mechanism contributing to heart failure
Post Your Comments:
Related Image:
Not just another brick in the (plant cell) wall
(Date:6/9/2016)... 2016 Paris Police Prefecture ... security solution to ensure the safety of people and operations ... the major tournament Teleste, an international technology group ... announced today that its video security solution will be utilised ... up public safety across the country. The system roll-out is ...
(Date:6/3/2016)... 2016 Das DOTM ... Nepal hat ein 44 Millionen ... Kennzeichen, einschließlich Personalisierung, Registrierung und IT-Infrastruktur, an ... und Implementierung von Identitätsmanagementlösungen. Zahlreiche renommierte internationale ... teilgenommen, aber Decatur wurde als konformste und ...
(Date:6/2/2016)... June 2, 2016   The Weather Company , an ... Ads, an industry-first capability in which consumers will be able ... to ask questions via voice or text and receive relevant ... Marketers have long sought an advertising solution ... can be personal, relevant and valuable; and can scale across ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... -- On Wednesday, June 22, 2016, the NASDAQ ... Dow Jones Industrial Average edged 0.27% lower to finish at ... has initiated coverage on the following equities: Infinity Pharmaceuticals ... NKTR ), Aralez Pharmaceuticals Inc. (NASDAQ: ARLZ ... Learn more about these stocks by accessing their free trade ...
(Date:6/23/2016)... ... June 23, 2016 , ... Regulatory Compliance Associates® ... provides a free webinar on Performing Quality Investigations: Getting to Root ... CT at no charge. , Incomplete investigations are still a major concern to ...
(Date:6/23/2016)... , June 22, 2016  Amgen (NASDAQ: ... the QB3@953 life sciences incubator to accelerate ... The shared laboratory space at QB3@953 was created to ... key obstacle for many early stage organizations - access ... the sponsorship, Amgen launched two "Amgen Golden Ticket" awards, ...
(Date:6/22/2016)... SAN DIEGO , June 22, 2016 /PRNewswire/ ... partnership that will allow them to produce up ... (HiPSC) from one lot within one week. These ... their time laboriously preparing cells and spend more ... made possible through a proprietary, high-volume manufacturing process ...
Breaking Biology Technology: