Impact of arbuscular mycorrhizal fungi on the growth, water status, and photosynthesis of hybrid poplar under drought stress and recovery

Verfasser / Beitragende:
[T. Liu, M. Sheng, C. Wang, H. Chen, Z. Li, M. Tang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Photosynthetica, 53/2(2015-06-01), 250-258
Format:
Artikel (online)
ID: 605481067
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024 7 0 |a 10.1007/s11099-015-0100-y  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s11099-015-0100-y 
245 0 0 |a Impact of arbuscular mycorrhizal fungi on the growth, water status, and photosynthesis of hybrid poplar under drought stress and recovery  |h [Elektronische Daten]  |c [T. Liu, M. Sheng, C. Wang, H. Chen, Z. Li, M. Tang] 
520 3 |a Poplars (Populus spp.) are widely used in the pulp and paper industry and as bioenergy resources. Poplars require a large amount of water for biomass accumulation and lack of water is a limiting factor for poplar growth. Arbuscular mycorrhizal (AM) fungi have been previously reported to afford some plant species with greater resistance to drought stress. However, the effects of AM fungi on hybrid poplar under drought stress and recovery have not been studied. The main aim of this study was to evaluate the effects of the AM fungus, Rhizophagus irregularis, on the growth, water status, chlorophyll (Chl) content and fluorescence, and photosynthesis of poplar seedlings. The experiment was divided into three stages. At each stage of the experiment, the seedlings were subjected to a different watering regime: well-watered (prior stress), drought, and then rewatering (recovery). Measurements were taken at the end of each stage of the experiment. The results showed that mycorrhizal plants had a higher net photosynthetic rate and Chl fluorescence compared with nonmycorrhizal plants, regardless of the stage. Mycorrhizal and nonmycorrhizal plants showed different responses to drought stress: mycorrhizal plants showed better water-use efficiency and water uptake under drought stress conditions. In general, the poplar seedlings that formed the AM symbiosis with R. irregularis showed enhanced growth and reduced loss of biomass during the drought stress compared with the nonmycorrhizal seedlings. 
540 |a The Institute of Experimental Botany, 2015 
690 7 |a drought tolerance  |2 nationallicence 
690 7 |a gas exchange  |2 nationallicence 
690 7 |a nonphotochemical quenching  |2 nationallicence 
690 7 |a photosynthetic capacity  |2 nationallicence 
690 7 |a relative water content  |2 nationallicence 
690 7 |a AM : arbuscular mycorrhizal  |2 nationallicence 
690 7 |a Chl : chlorophyll  |2 nationallicence 
690 7 |a C i : intercellular CO2 concentration  |2 nationallicence 
690 7 |a DS : drought stress  |2 nationallicence 
690 7 |a E : transpiration rate  |2 nationallicence 
690 7 |a F0 : the minimal fluorescence in dark-adapted state  |2 nationallicence 
690 7 |a F0′ : the minimal fluorescence in light-adapted state  |2 nationallicence 
690 7 |a Fm : the maximal fluorescence in dark-adapted state  |2 nationallicence 
690 7 |a Fm′ : the maximal fluorescence in light-adapted state  |2 nationallicence 
690 7 |a Fs : the steady-state fluorescence  |2 nationallicence 
690 7 |a Fv/Fm : the maximal quantum yield of PSII in dark-adapted state  |2 nationallicence 
690 7 |a g s : stomatal conductance  |2 nationallicence 
690 7 |a P N : net photosynthetic rate  |2 nationallicence 
690 7 |a qN : nonphotochemical quenching coefficient  |2 nationallicence 
690 7 |a qP : photochemical quenching coefficient  |2 nationallicence 
690 7 |a REC : recovery  |2 nationallicence 
690 7 |a RWC : relative water content  |2 nationallicence 
690 7 |a WUE : water-use efficiency  |2 nationallicence 
690 7 |a WW : well-watered  |2 nationallicence 
690 7 |a ΦPSII : effective quantum yield of PSII  |2 nationallicence 
700 1 |a Liu  |D T.  |u State Key Laboratory of Soil Erosion and Arid-land Farming on the Loess Plateau, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
700 1 |a Sheng  |D M.  |u College of Forestry, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
700 1 |a Wang  |D C.  |u College of Forestry, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
700 1 |a Chen  |D H.  |u College of Forestry, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
700 1 |a Li  |D Z.  |u College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
700 1 |a Tang  |D M.  |u State Key Laboratory of Soil Erosion and Arid-land Farming on the Loess Plateau, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
773 0 |t Photosynthetica  |d The Institute of Experimental Biology of the Czech Academy of Sciences  |g 53/2(2015-06-01), 250-258  |x 0300-3604  |q 53:2<250  |1 2015  |2 53  |o 11099 
856 4 0 |u https://doi.org/10.1007/s11099-015-0100-y  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s11099-015-0100-y  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Liu  |D T.  |u State Key Laboratory of Soil Erosion and Arid-land Farming on the Loess Plateau, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Sheng  |D M.  |u College of Forestry, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Wang  |D C.  |u College of Forestry, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chen  |D H.  |u College of Forestry, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Li  |D Z.  |u College of Life Sciences, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Tang  |D M.  |u State Key Laboratory of Soil Erosion and Arid-land Farming on the Loess Plateau, Northwest A&F University, 712100, Yangling, Shaanxi, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Photosynthetica  |d The Institute of Experimental Biology of the Czech Academy of Sciences  |g 53/2(2015-06-01), 250-258  |x 0300-3604  |q 53:2<250  |1 2015  |2 53  |o 11099