Differential effects of environmental stressors on physiological processes and methane emissions in pea (Pisum sativum) plants at various growth stages
Copyright © 2019 Elsevier Masson SAS. All rights reserved.
| Veröffentlicht in: | Plant physiology and biochemistry : PPB. - 1991. - 139(2019) vom: 01. Juni, Seite 715-723 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
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2019
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| Zugriff auf das übergeordnete Werk: | Plant physiology and biochemistry : PPB |
| Schlagworte: | Journal Article High temperature Methane emission Pea Physiological processes Pisum sativum UVB radiation Water stress Methane OP0UW79H66 |
| Zusammenfassung: | Copyright © 2019 Elsevier Masson SAS. All rights reserved. Many studies have investigated the effects of one or two environmental factors on methane (CH4) emissions from plants at a single growth stage, but the impact that multiple co-occurring stress factors may have on emissions at different growth stages has rarely been studied. The objective of this study was to examine the effects of temperature, ultraviolet-B (UVB) radiation, and watering regime on CH4 emissions and some relevant physiological characteristics of pea (Pisum sativum L. cv. 237 J Sundance) plants at three growth stages. We grew plants under two temperature regimes (22/18 °C and 28/24 °C; 16 h light/8 h dark), two UVB levels [0 and 5 kJ m-2 d-1] and two watering regimes (well-watered, watering plants to field capacity, and water-stressed, watering plants at wilting point). Measurements were then taken after 10, 20, and 30 days of growth under experimental conditions, following seven days of initial growth under 22/18 °C. Higher temperatures, UVB5, and water stress adversely affected photosynthesis and chlorophyll fluorescence, but increased CH4 emissions, which decreased with increased plant age. Also, interaction of higher temperatures and UVB5 reversed the pattern of CH4 emissions at growth stages, compared to that of other treatments. We conclude that CH4 emission decreases with plant age, and it is affected by stress factors through changes in physiological activities of plants |
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| Beschreibung: | Date Completed 17.06.2019 Date Revised 09.01.2024 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1873-2690 |
| DOI: | 10.1016/j.plaphy.2019.04.030 |