The Rhizobium sp. strain NGR234 systemically suppresses arbuscular mycorrhizal root colonization in a split-root system of barley (Hordeum vulgare)

2010 ◽  
pp. no-no ◽  
Author(s):  
Thanasan Khaosaad ◽  
Christian Staehelin ◽  
Siegrid Steinkellner ◽  
Karin Hage-Ahmed ◽  
Juan Antonio Ocampo ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Root System ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal ◽  
Mycorrhizal Root ◽  
Split Root ◽  
Split Root System ◽  
Rhizobium Sp

Variable carbon-sink strength of different Glomus mosseae strains colonizing barley roots

2003 ◽  
Vol 81 (8) ◽  
pp. 886-889 ◽  
Author(s):  
Sylvain Lerat ◽  
Line Lapointe ◽  
Yves Piché ◽  
Horst Vierheilig
Keyword(s):  
Hordeum Vulgare ◽  
Glomus Mosseae ◽  
Carbon Sink ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Sink Strength ◽  
Split Root ◽  
Split Root System ◽  
Dry Biomass ◽  
C Partitioning

Root carbon (C) partitioning was investigated in barley (Hordeum vulgare L.) colonized by one of three strains of the arbuscular mycorrhizal fungus (AMF) Glomus mosseae (Nicolson & Gerdemann) Gerd. & Trappe. The roots of each plant were evenly divided between two compartments of a split-root system and one side was inoculated with one of the three AMF strains. Twenty-three days after inoculation barley shoots were labeled with 14CO2. Twenty-four hours later, plants were harvested and the mycorrhizal (M) and nonmycorrhizal (NM) roots were analyzed separately for 14C. Partitioning of C between M and NM sides differed between the fungal strains: BEG 54 was a strong C sink, BEG 55 was a moderately strong C sink, and BEG 12 showed similar C-sink strength as the non-inoculated control plants. The observed differences in C-sink strength mirrored differences in plant dry biomass. Total plant dry biomass of plants inoculated with BEG 12, BEG54, and BEG 55 represented 81.3%, 65.3%, and 73.4% of the biomass of the control plants, respectively. This paper is the first report of an AMF strain-specific variation of C partitioning in M plants in a split-root system.Key words: arbuscular mycorrhizal fungi, barley (Hordeum vulgare), carbon sink, Glomus mosseae, strain variability.

scholarly journals Carbon partitioning in a split-root system of arbuscular mycorrhizal plants is fungal and plant species dependent

2003 ◽  
Vol 157 (3) ◽  
pp. 589-595 ◽  
Author(s):  
Sylvain Lerat ◽  
Line Lapointe ◽  
Sylvain Gutjahr ◽  
Yves Piche ◽  
Horst Vierheilig
Keyword(s):  
Root System ◽  
Plant Species ◽  
Arbuscular Mycorrhizal ◽  
Carbon Partitioning ◽  
Split Root ◽  
Split Root System ◽  
Mycorrhizal Plants

Responses of soybean to ammonium and nitrate supplied in combination to the whole root system or separately in a split-root system

1994 ◽  
Vol 90 (2) ◽  
pp. 259-268 ◽  
Author(s):  
Sylvain Chaillou ◽  
James W. Rideout ◽  
C. David Raper, ◽  
Jean-Francois Morot-Gaudry
Keyword(s):  
Root System ◽  
Split Root ◽  
Split Root System

Comparison of the responses to NaCl stress of two pea cultivars using split-root system

2009 ◽  
Vol 123 (2) ◽  
pp. 164-169 ◽  
Author(s):  
Houneida Attia ◽  
Sarra Nouaili ◽  
Abdelaziz Soltani ◽  
Mokhtar Lachaâl
Keyword(s):  
Root System ◽  
Nacl Stress ◽  
Split Root ◽  
Split Root System

Biomass allocation in tomato (Lycopersicon esculentum) plants grown under partial rootzone drying: enhancement of root growth

2004 ◽  
Vol 31 (10) ◽  
pp. 971 ◽  
Author(s):  
Darren M. Mingo ◽  
Julian C. Theobald ◽  
Mark A. Bacon ◽  
William J. Davies ◽  
Ian C. Dodd
Keyword(s):  
Lycopersicon Esculentum ◽  
Root System ◽  
Biomass Allocation ◽  
Root Biomass ◽  
Leaf Water ◽  
Total Biomass ◽  
Split Root ◽  
Split Root System ◽  
Partial Rootzone Drying ◽  
And Control

Tomato (Lycopersicon esculentum Mill.) plants were grown in either a glasshouse (GH) or a controlled environment cabinet (CEC) to assess the effects of partial rootzone drying (PRD) on biomass allocation. Control and PRD plants received the same amounts of water. In control plants, water was equally distributed between two compartments of a split-root system. In PRD plants, only one compartment was watered while the other was allowed to dry. At the end of each drying cycle, wet and dry compartments were alternated. In the GH, total biomass did not differ between PRD and control plants after four cycles of PRD, but PRD increased root biomass by 55% as resources were partitioned away from shoot organs. In the CEC, leaf water potential did not differ between treatments at the end of either of two cycles of PRD, but stomatal conductance of PRD plants was 20% less at the end of the first cycle than at the beginning. After two cycles of PRD in the CEC, biomass did not differ between PRD and control plants, but PRD increased root biomass by 19% over the control plants. The promotion of root biomass in PRD plants was associated with the alternation of wet and dry compartments, with increased root biomass occurring in the re-watered compartment after previous exposure to soil drying. Promotion of root biomass in field-grown PRD plants may allow the root system to access resources (water and nutrients) that would otherwise be unavailable to control plants. This may contribute to the ability of PRD plants to maintain similar leaf water potentials to conventionally irrigated plants, even when smaller irrigation volumes are supplied.

scholarly journals Heterogeneous root zone salinity mitigates salt injury to Sorghum bicolor (L.) Moench in a split-root system

PLoS ONE ◽  
2019 ◽  
Vol 14 (12) ◽  
pp. e0227020
Author(s):  
Huawen Zhang ◽  
Runfeng Wang ◽  
Hailian Wang ◽  
Bin Liu ◽  
Mengping Xu ◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Root System ◽  
Root Zone ◽  
Split Root ◽  
Split Root System ◽  
Sorghum Bicolor L ◽  
Root Zone Salinity
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