Navigation Links
Frontiers news briefs: Aug. 13
Date:8/14/2013

Plant Science

Plants modify soil to maximize water uptake by their youngest roots

Roots of lupine plants exude a gel that facilitates water uptake from the deeper, wetter soil layers, while preventing water loss from older roots closer to the surface, a newstudy reports. Plants can respond to water shortage by reducing transpiration or by growing deeper roots, but also by modifying the soil. For example, roots exude mucilage, a gel that increases the water holding capacity ("wettability") of the soil. However, when roots have taken up most available water, the mucilage dries out, making the contact zone between roots and soil ("the rhizosphere") water-repellent precisely when water is needed most. But Andrea Carminati here shows that this decrease in wettability with increasing root age is actually an adaptive strategy. Studying the rhizosphere of lupine with neutron radiography (a technique similar to X-rays), he found that only the mucilage around upper, older roots becomes water repellent, while fresh mucilage ensures that the tips of younger, deeper roots always remain wet. Carminati concludes that the resulting isolation of older roots from the dry top soil increases the flow of water into the youngest roots.

Prof Andrea Carminati
Department of Crop Sciences
Georg-August University of Gttingen, Germany
E-mail: acarmin@uni-goettingen.de

Color images (obtained through neutron radiography) available upon request.

Journal : Frontiers in Plant Science
Article title : Rhizosphere wettability decreases with root age: A problem or a strategy to increase water uptake of young roots?
DOI: 10.3389/fpls.2013.00298
URL: http://www.frontiersin.org/Functional_Plant_Ecology/10.3389/fpls.2013.00298/abstract



'/>"/>
Contact: Gozde Zorlu
gozde.zorlu@frontiersin.org
Frontiers
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Frontiers news briefs: July 23
2. Frontiers news briefs: July 4
3. Frontiers news briefs: 27 June
4. Frontiers news briefs: June 6
5. Frontiers news briefs May 30
6. Frontiers launches new open-access journal in physics
7. Frontiers news briefs: May 23
8. Frontiers launches new open-access journal in Bioengineering and Biotechnology
9. Frontiers announces launch of new open-access journal, Frontiers in Public Health
10. Finding new research frontiers in a single cell
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/16/2015)... Between 16 and 20 ... innovations in biometric identification at the CeBIT exhibition ...      (Photo: http://photos.prnewswire.com/prnh/20150316/735333 ) , ... at the forefront: the company,s all new BiometricGate ... Germany . BiometricGate is the first ...
(Date:3/12/2015)... VIEW, Calif. , March 12, 2015 /PRNewswire/ ... with Complimentary Registration here: http://bit.ly/1G7Os0L . SPEAKERS: ... Manager Aravind SeshagiriPhoto - http://photos.prnewswire.com/prnh/20150311/181111 ... in order to compete in several different markets ... market is currently witnessing an uptrend. ...
(Date:3/10/2015)... Transforming How We Look at ... in Human Space Flight" by Michael A. ... Ph.D. was recently featured by Springer Science Media, highlighting the ... Specifically, "Personalized Medicine in Human Space Flight" was ... 2013 and 2014 from Springer in the journal ...
Breaking Biology News(10 mins):DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 2DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 3Biometrics Key to Future Growth in Healthcare, Retail and Financial Markets 2Biometrics Key to Future Growth in Healthcare, Retail and Financial Markets 3"Personalized Medicine in Human Space Flight" Listed Among Most Influential Papers of 2013 and 2014 2
... tiger snakes stranded for thousands of years on tiny islands ... twice the size of their mainland cousins. Now, new research ... of these elapids was driven by the need to have ... at 35 inches (89 cm) long, patrol swampy areas in ...
... CHAMPAIGN, Ill. Miscanthus grasses are used in ... fuels. They also belong to a prominent grass family that ... maps of Miscanthus sinensis (an ornamental that ... biofuels crop) are a first step toward sequencing the ...
... 15, 2012) This fall, Drexel Environmental Science students will ... locally and across the globe as a result of ... Natural Sciences. Out of the affiliation comes the Department ... will work and learn among some of the world,s ...
Cached Biology News:Big-mouthed babies drove the evolution of giant island snakes 2Big-mouthed babies drove the evolution of giant island snakes 3Maps of Miscanthus genome offer insight into grass evolution 2Maps of Miscanthus genome offer insight into grass evolution 3New museum-university partnership ushers in new era of environmental science education 2
(Date:3/30/2015)... 2015 PMG Research, Benchmark Research, ... the formation of VaxCorps, a network of highly ... the conduct of vaccine trials in healthy adult, ... have successfully conducted over 500 phase I-III vaccine ... pandemic influenza as well as a vast array ...
(Date:3/30/2015)... , March 30, 2015  Heidrick & Struggles (Nasdaq: ... , leadership consulting and culture shaping ... the firm to lead its global Healthcare and Life Sciences ... and Life Sciences, Mitchell will lead a team of more ... Europe and Asia ...
(Date:3/30/2015)... BRUNSWICK, N.J. , March 30, 2015  New ... and innovation projects in the state of ... its next round of grant funding, announced James ... New Jersey Health Foundation Research Grants program, an additional ... $35,000 each to fund early stage research projects that ...
(Date:3/30/2015)... Md. , March 30, 2015 CASI ... dedicated to the acquisition, development and commercialization of innovative ... the global market with a commercial focus on ... Food and Drug Administration (CFDA) has approved the Company,s ... in ovarian clear cell carcinoma (OCCC) patients for its ...
Breaking Biology Technology:PMG Research announces formation of VaxCorps with two industry-leading vaccine site networks 2Heidrick & Struggles Strengthens Leadership of Healthcare - Life Sciences Practice 2New Jersey Health Foundation Announces An Additional $1 Million To Fund Innovation and Research Grants in New Jersey 2CASI Pharmaceuticals Receives Approval From CFDA For Phase 2 Clinical Trial In China With ENMD-2076 For Ovarian Clear Cell Carcinoma 2CASI Pharmaceuticals Receives Approval From CFDA For Phase 2 Clinical Trial In China With ENMD-2076 For Ovarian Clear Cell Carcinoma 3CASI Pharmaceuticals Receives Approval From CFDA For Phase 2 Clinical Trial In China With ENMD-2076 For Ovarian Clear Cell Carcinoma 4CASI Pharmaceuticals Receives Approval From CFDA For Phase 2 Clinical Trial In China With ENMD-2076 For Ovarian Clear Cell Carcinoma 5
... DNeasy Blood & Tissue Kits ... 96-well-plate,formats. Most samples can be directly lysed with proteinase K, eliminating ... specific sample types provide reproducible purification of high-quality DNA for life,science, ... , , ...
... An air impaction microbial assessment of your air ... , RUDY PINA ... Manufacturers of medical devices who label ... include injection molding, operation of conveyor belts, and/or aseptic cleaning processes. The ...
... Seamless Performance Between GeneChip Scanner ... , ... The GeneChip Instrument System is the most advanced microarray analysis ... in array manufacturing processes have enabled Affymetrix to produce expression probe arrays ...
Cached Biology Technology:DNA purification from pig ears to bird blood using proven DNeasy Technology 2Testing Compressed Air Lines for Microbiological Contamination 2Testing Compressed Air Lines for Microbiological Contamination 3Testing Compressed Air Lines for Microbiological Contamination 4Testing Compressed Air Lines for Microbiological Contamination 5Testing Compressed Air Lines for Microbiological Contamination 6The New Affymetrix GeneChip Scanner 3000 2The New Affymetrix GeneChip Scanner 3000 3The New Affymetrix GeneChip Scanner 3000 4The New Affymetrix GeneChip Scanner 3000 5The New Affymetrix GeneChip Scanner 3000 6The New Affymetrix GeneChip Scanner 3000 7The New Affymetrix GeneChip Scanner 3000 8The New Affymetrix GeneChip Scanner 3000 9The New Affymetrix GeneChip Scanner 3000 10The New Affymetrix GeneChip Scanner 3000 11The New Affymetrix GeneChip Scanner 3000 12The New Affymetrix GeneChip Scanner 3000 13The New Affymetrix GeneChip Scanner 3000 14The New Affymetrix GeneChip Scanner 3000 15