Navigation Links
New study finds biochar stimulates more plant growth but less plant defense
Date:3/31/2014

In the first study of its kind, research undertaken at the University of Southampton has cast significant doubt over the use of biochar to alleviate climate change.

Biochar is produced when wood is combusted at high temperatures to make bio-oil and has been proposed as a method of geoengineering. When buried in the soil, this carbon rich substance could potentially lock-up carbon and reduced greenhouse gas emissions. The global potential of biochar is considered to be large, with up to 12 percent of emissions reduced by biochar soil application.

Many previous reports have shown that biochar can also stimulate crop growth and yield, providing a valuable co-benefit when the soil is treated with biochar, but the mechanism enabling this to happen is unknown.

Professor Gail Taylor, Director of Research at the University's Centre for Biological Sciences and research colleagues, in collaboration with National Research Council (CNR) scientists in Italy and The James Hutton Institute in Scotland, have provided an explanation why biochar has this impact. They have published their findings in the journal Global Change Biology Bioenergy.

They found that when thale cress and lettuce plants were subjected to increasing amounts of biochar mixed with soil, using the equivalent of up to 50 tonnes per hectare per year, if applied in the field, plant growth was stimulated by over 100 percent. For the first time, the response of more than 10,000 genes was followed simultaneously, which identified brassinosteroids and auxins and their signalling molecules as key to the growth stimulation observed in biochar. Brassinosteroids and auxins are two growth promoting plant hormones and the study goes further in showing that their signalling molecules were also stimulated by biochar application.

However, the positive impacts of biochar were coupled with negative findings for a suite of genes that are known to determine the ability of a plant to withstand attack from pests and pathogens. These defence genes were consistently reduced following biochar application to the soil, for example jasmonic and salcyclic acid and ethylene, suggesting that crops grown on biochar may be more susceptible to attack by pests and pathogens.

This was a surprising finding and suggests that if reproduced in the field at larger scales, could have wide implications for the use of biochar on commercial crops.

Professor Taylor, who co-ordinated the research, says: "Our findings provide the very first insight into how biochar stimulates plant growth we now know that cell expansion is stimulated in roots and leaves alike and this appears to be the consequence of a complex signalling network that is focussed around two plant growth hormones. However, the finding for plant defence genes was entirely unpredicted and could have serious consequences for the commercial development and deployment of biochar in future. Any risk to agriculture is likely to prevent wide scale use of biochar and we now need to see which pest and pathogens are sensitive to the gene expression changes."


'/>"/>

Contact: Glenn Harris
G.Harris@soton.ac.uk
44-023-805-93212
University of Southampton
Source:Eurekalert  

Related biology news :

1. Ancient African cattle first domesticated in Middle East, MU study reveals
2. Underweight people at as high risk of dying as obese people, new study finds
3. Esophageal function implicated in life-threatening experiences in infants, study suggests
4. Study shows invasive species in waterways on rise due to climate change
5. ISU engineer builds instrument to study effects of genes, environment on plant traits
6. Study: Salamanders shrinking due to climate change
7. Famous paintings help study the Earths past atmosphere
8. UT Southwestern ob/gyn researchers studying genetic factors in premature births
9. Nature Immunology study finds novel population of neutrophils
10. University of Cincinnati to study impact of blood microparticles in inflammation, injury
11. Study: Stress impacts ability to get pregnant
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New study finds biochar stimulates more plant growth but less plant defense
(Date:4/11/2017)... , April 11, 2017 NXT-ID, ... security technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate ... ... NXT-ID, we look forward to their guidance and benefiting from ...
(Date:4/5/2017)... April 5, 2017  The Allen Institute for Cell ... Explorer: a one-of-a-kind portal and dynamic digital window into ... data, the first application of deep learning to create ... cell lines and a growing suite of powerful tools. ... these and future publicly available resources created and shared ...
(Date:4/5/2017)... LONDON , April 4, 2017 KEY ... is anticipated to expand at a CAGR of 25.76% ... neurodegenerative diseases is the primary factor for the growth ... full report: https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The ... of product, technology, application, and geography. The stem cell ...
Breaking Biology News(10 mins):
(Date:5/23/2017)... ... May 22, 2017 , ... ... in San Diego, California, this August will feature high-level speakers on quantum ... vehicles. , SPIE Optics and Photonics, the largest multidisciplinary optical sciences meeting in ...
(Date:5/23/2017)... ... May 23, 2017 , ... Energetiq Technology, a world ... facility expansion to accommodate its rapid growth. , The renovations at the company’s ... of the existing areas. The expansion includes, a state-of-the-art engineering facility, and a ...
(Date:5/23/2017)... ... May 23, 2017 , ... Bacterial biofilms, surface adherent communities of ... diverse pathologies ranging from food poisoning and catheter infections to gum disease and the ... tens of billions of dollars per year, there is currently a paucity of means ...
(Date:5/23/2017)... ... May 23, 2017 , ... ... re-engineer their control technology again and again. METTLER TOLEDO has released two new ... The videos illustrate how integration of the ACT350 into Siemens and Allen Bradley ...
Breaking Biology Technology: