Journal article
Sensitivity of chickpea and faba bean to root-zone hypoxia, elevated ethylene, and carbon dioxide
Plant, Cell & Environment, Vol.42(1), pp.85-97
2018
Abstract
During soil waterlogging, plants experience O2 deficits, elevated ethylene, and high CO2 in the root-zone. The effects on chickpea (Cicer arietinum L.) and faba bean (Vicia faba L.) of ethylene (2 μL L−1), CO2 (2–20% v/v) or deoxygenated stagnant solution were evaluated. Ethylene and high CO2 reduced root growth of both species, but O2 deficiency had the most damaging effect and especially so for chickpea. Chickpea suffered root tip death when in deoxygenated stagnant solution. High CO2 inhibited root respiration and reduced growth, whereas sugars accumulated in root tips, of both species. Gas-filled porosity of the basal portion of the primary root of faba bean (23%, v/v) was greater than for chickpea (10%), and internal O2 movement was more prominent in faba bean when in an O2-free medium. Ethylene treatment increased the porosity of roots. The damaging effects of low O2, such as death of root tips, resulted in poor recovery of root growth upon reaeration. In conclusion, ethylene and high CO2 partially inhibited root extension in both species, but low O2 in deoxygenated stagnant solution had the most damaging effect, even causing death of root tips in chickpea, which was more sensitive to the low O2 condition than faba bean.
Details
- Title
- Sensitivity of chickpea and faba bean to root-zone hypoxia, elevated ethylene, and carbon dioxide
- Authors/Creators
- R. Munir (Author/Creator) - The University of Western AustraliaD. Konnerup (Author/Creator) - Aarhus UniversityH.A. Khan (Author/Creator) - The University of Western AustraliaK.H.M. Siddique (Author/Creator) - The University of Western AustraliaT.D. Colmer (Author/Creator) - The University of Western Australia
- Publication Details
- Plant, Cell & Environment, Vol.42(1), pp.85-97
- Publisher
- Blackwell Publishing Inc.
- Identifiers
- 991005541176507891
- Copyright
- © 2018 John Wiley & Sons Ltd
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.1960 Waterlogging Tolerance
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science