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2021-06-01Author
Hupe, AnkeNäther, FranziskaHaase, ThorstenBruns, ChristianHeß, JürgenDyckmans, JensJörgensen, Rainer GeorgWichern, FlorianSubject
570 Life sciences; biology 580 Plants; biology HülsenfruchtGetreideStickstoffKohlenstoffErbseÜbertragungTriticaleMetadata
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Evidence of considerable C and N transfer from peas to cereals via direct root contact but not via mycorrhiza
Abstract
Intercropping of legumes and cereals is an important management method for improving yield stability, especially in organic farming systems. However, knowledge is restricted on the relevance of different nutrient transfer pathways. The objective of the study was to quantify nitrogen (N) and carbon (C) transfer from peas to triticale by (1) direct root contact (= R), (2) arbuscular mycorrhizal fungi (AMF; = A), and (3) diffusion (= D). Pea (Pisum sativum cv. Frisson and P2) and triticale (Triticum × Secale cv. Benetto) plants as intercrop were grown for 105 days. Treatment ADR enabled all transfer paths between the two crops. Treatment AD with root exclusion enabled AMF and diffusion transfer between peas and triticale. Treatment A with a diffusion gap barrier only allowed AMF transfer. Pea plants were labelled every 14 days with a 13C glucose and 15N urea solution, using the cotton wick technique. Direct root contact resulted in the highest pea rhizodeposition and thus the largest absolute amounts of N and C transfer to triticale. Root exclusion generally changed composition of rhizodeposits from fine root residues towards root exudates. Pea plant-N consisted of 17% N derived from rhizodeposition (NdfR) in treatment ADR but only 8% in the treatments AD and A, independently of pea variety, whereas pea plant-C consisted of 13% C derived from rhizodeposition (CdfR), without pea variety and transfer path treatment effects. Averaging all transfer path treatments, 6.7% of NdfR and 2.7% of CdfR was transferred from Frisson and P2 to triticale plants. Approximately 90% of this NdfR was transferred by direct root contact from Frisson to triticale and only 10% by AMF, whereas only 55% of CdfR was transferred to triticale by direct root contact, 40% by AMF and 5% by diffusion. Similar percentages were transferred from mutant P2 to triticale. Root exclusion generally changed RD composition from fine root residues towards root exudates.
Citation
In: Scientific reports Volume 11 (2021-06-01) eissn:2045-2322Sponsorship
Gefördert durch den Publikationsfonds der Universität KasselCitation
@article{doi:10.17170/kobra-202112215306,
author={Hupe, Anke and Näther, Franziska and Haase, Thorsten and Bruns, Christian and Heß, Jürgen and Dyckmans, Jens and Jörgensen, Rainer Georg and Wichern, Florian},
title={Evidence of considerable C and N transfer from peas to cereals via direct root contact but not via mycorrhiza},
journal={Scientific reports},
year={2021}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2021$n2021 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/13483 3000 Hupe, Anke 3010 Näther, Franziska 3010 Haase, Thorsten 3010 Bruns, Christian 3010 Heß, Jürgen 3010 Dyckmans, Jens 3010 Jörgensen, Rainer Georg 3010 Wichern, Florian 4000 Evidence of considerable C and N transfer from peas to cereals via direct root contact but not via mycorrhiza / Hupe, Anke 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/13483=x R 4204 \$dAufsatz 4170 5550 {{Hülsenfrucht}} 5550 {{Getreide}} 5550 {{Stickstoff}} 5550 {{Kohlenstoff}} 5550 {{Erbse}} 5550 {{Übertragung}} 5550 {{Triticale}} 7136 ##0##http://hdl.handle.net/123456789/13483
2022-01-05T10:08:58Z 2022-01-05T10:08:58Z 2021-06-01 doi:10.17170/kobra-202112215306 http://hdl.handle.net/123456789/13483 Gefördert durch den Publikationsfonds der Universität Kassel eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ plant sciences stable isotope analysis 570 580 Evidence of considerable C and N transfer from peas to cereals via direct root contact but not via mycorrhiza Aufsatz Intercropping of legumes and cereals is an important management method for improving yield stability, especially in organic farming systems. However, knowledge is restricted on the relevance of different nutrient transfer pathways. The objective of the study was to quantify nitrogen (N) and carbon (C) transfer from peas to triticale by (1) direct root contact (= R), (2) arbuscular mycorrhizal fungi (AMF; = A), and (3) diffusion (= D). Pea (Pisum sativum cv. Frisson and P2) and triticale (Triticum × Secale cv. Benetto) plants as intercrop were grown for 105 days. Treatment ADR enabled all transfer paths between the two crops. Treatment AD with root exclusion enabled AMF and diffusion transfer between peas and triticale. Treatment A with a diffusion gap barrier only allowed AMF transfer. Pea plants were labelled every 14 days with a 13C glucose and 15N urea solution, using the cotton wick technique. Direct root contact resulted in the highest pea rhizodeposition and thus the largest absolute amounts of N and C transfer to triticale. Root exclusion generally changed composition of rhizodeposits from fine root residues towards root exudates. Pea plant-N consisted of 17% N derived from rhizodeposition (NdfR) in treatment ADR but only 8% in the treatments AD and A, independently of pea variety, whereas pea plant-C consisted of 13% C derived from rhizodeposition (CdfR), without pea variety and transfer path treatment effects. Averaging all transfer path treatments, 6.7% of NdfR and 2.7% of CdfR was transferred from Frisson and P2 to triticale plants. Approximately 90% of this NdfR was transferred by direct root contact from Frisson to triticale and only 10% by AMF, whereas only 55% of CdfR was transferred to triticale by direct root contact, 40% by AMF and 5% by diffusion. Similar percentages were transferred from mutant P2 to triticale. Root exclusion generally changed RD composition from fine root residues towards root exudates. open access Hupe, Anke Näther, Franziska Haase, Thorsten Bruns, Christian Heß, Jürgen Dyckmans, Jens Jörgensen, Rainer Georg Wichern, Florian doi:10.1038/s41598-021-90436-8 Hülsenfrucht Getreide Stickstoff Kohlenstoff Erbse Übertragung Triticale publishedVersion eissn:2045-2322 Scientific reports Volume 11 false 11424
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