scholarly journals Special issue in honour of Prof. Reto J. Strasser - Chlorophyll a fluorescence parameters as indicators of a particular abiotic stress in rice

2020 ◽  
Vol 58 (SPECIAL ISSUE) ◽  
pp. 293-300 ◽  
Author(s):  
P. FASEELA ◽  
A.K. SINISHA ◽  
M. BRESTIC ◽  
J.T. PUTHUR
Keyword(s):  
Abiotic Stress ◽  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Special Issue ◽  
Fluorescence Parameters

Mapping QTLs for yield components and chlorophyll a fluorescence parameters in wheat under three levels of water availability

2011 ◽  
Vol 9 (2) ◽  
pp. 291-295 ◽  
Author(s):  
Ilona Czyczyło-Mysza ◽  
Izabela Marcińska ◽  
Edyta Skrzypek ◽  
Małgorzata Chrupek ◽  
Stanisław Grzesiak ◽  
...  
Keyword(s):  
Drought Stress ◽  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Wheat Yield ◽  
Dry Weight ◽  
Interval Mapping ◽  
Main Stem ◽  
Severe Drought ◽  
Single Marker Analysis ◽  
Fluorescence Parameters

Drought is one of the major factors limiting wheat yield in many developing countries worldwide. Parameters of chlorophyll a fluorescence kinetics under drought stress conditions have been used to characterize dehydration tolerance in wheat. In the present study, a set of 94 doubled haploid lines obtained from Chinese Spring × SQ1 (CSDH), mapped with 450 markers, was evaluated for yield (grain dry weight/main stem ear), number of grains/main stem ear (NG) and chlorophyll a fluorescence parameters (FC) under moderate and severe drought stress, and compared with results for well-watered plants. quantitative trait loci (QTLs) were identified using Windows QTLCartographer version 2.5 software and the results were analysed using single-marker analysis (SMA) and composite interval mapping (CIM). Analysis using SMA and CIM showed mostly similar QTLs for all traits, though more QTLs were identified by SMA than by CIM. The genetic control of yield, NG and FC varied considerably between drought-stressed and non-stressed plants. Although no major QTL co-locations were found for yield and FC using CIM, the co-location of QTLs for NG, yield and Fv/Fm in drought-stressed plants was observed on chromosome 5A using SMA.

scholarly journals Seasonality and Small Spatial-Scale Variation of Chlorophyll a Fluorescence in Bryophyte Syntrichia ruralis [Hedw.] in Semi-Arid Sandy Grassland, Hungary

Plants ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 92 ◽  
Author(s):  
Ruchika ◽  
Zsolt Csintalan ◽  
Evelin Ramóna Péli
Keyword(s):  
Quantum Yield ◽  
Fluorescence Quenching ◽  
Spatial Scale ◽  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Small Spatial Scale ◽  
Variation Trend ◽  
Fluorescence Parameters ◽  
Semi Arid ◽  
Sandy Grassland

Bryophytes face challenges due to global climate change which is leading to in-depth research in monitoring and studying their photosynthetic activity. The aim of this preliminary experiment was to study the seasonal variation trend in the chlorophyll a fluorescence parameters, Fv/Fm (ratio of variable to maximum fluorescence), photochemical fluorescence quenching (qP), photochemical quantum yield of photosystem II (ΦPS II), fluorescence quenching (qN), and non-photochemical quenching (NPQ), in the moss cushions of Syntrichia ruralis [Hedw.] collected from semi-arid sandy dunes for two slopes i.e., north-east (NE) and south-west (SW) direction. Our results showed a seasonal and small-spatial scale variation trend in all chlorophyll fluorescence parameters. These variations are due to different seasonal conditions referring to different degrees of environmental stress. ΦPS II and qP values were maximum in winter and in spring seasons while Fv/Fm, NPQ and qN were maximum in summer. Based on the different exposition of dunes, the SW slope showed increased values of the effective quantum yield of PS II and qP in comparison to the NE slope due to the optimal microclimate conditions for their expansion. These results may refer to the future changing in diversification and coverage of the Syntrichia species in semi-arid sandy grassland due to more effective metabolism in the beneficial microclimatic conditions.

Can chlorophyll-a fluorescence parameters be used as bio-indicators to distinguish between drought and salinity stress in Tilia cordata Mill?

2018 ◽  
Vol 152 ◽  
pp. 149-157 ◽  
Author(s):  
Hazem M. Kalaji ◽  
Lydia Račková ◽  
Viera Paganová ◽  
Tatiana Swoczyna ◽  
Szymon Rusinowski ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Salinity Stress ◽  
Chlorophyll A Fluorescence ◽  
Tilia Cordata ◽  
Fluorescence Parameters

scholarly journals Special issue in honour of Prof. Reto J. Strasser - A comparative chlorophyll a fluorescence study on isolated cells and intact leaves of Bouteloua gracilis (blue grama grass)

2020 ◽  
Vol 58 (SPECIAL ISSUE) ◽  
pp. 262-274 ◽  
Author(s):  
B. JIMENEZ-FRANCISCO ◽  
A. STIRBET ◽  
H. CAMPOS ◽  
F.V. CONDE-MARTINEZ ◽  
D. PADILLA-CHACON ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Bouteloua Gracilis ◽  
Special Issue ◽  
Fluorescence Study ◽  
Isolated Cells ◽  
Blue Grama ◽  
Intact Leaves
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