scholarly journals Effect of cold acclimation on the photosynthetic performance of two ecotypes of Colobanthus quitensis (Kunth) Bartl.

2007 ◽  
Vol 58 (13) ◽  
pp. 3581-3590 ◽  
Author(s):  
L. A. Bravo ◽  
F. A. Saavedra-Mella ◽  
F. Vera ◽  
A. Guerra ◽  
L. A. Cavieres ◽  
...  
Keyword(s):  
Cold Acclimation ◽  
Photosynthetic Performance ◽  
Colobanthus Quitensis

scholarly journals Analysis of Cold-Developed vs. Cold-Acclimated Leaves Reveals Various Strategies of Cold Acclimation of Field Pea Cultivars

2019 ◽  
Vol 11 (24) ◽  
pp. 2964 ◽  
Author(s):  
Alexandra Husičková ◽  
Jan F. Humplík ◽  
Miroslav Hýbl ◽  
Lukáš Spíchal ◽  
Dušan Lazár
Keyword(s):  
Cold Acclimation ◽  
Shoot Growth ◽  
Photosynthetic Performance ◽  
The Other ◽  
Remote Sensing Technology ◽  
Sensing Technology ◽  
Quenching Analysis ◽  
Shoot Growth Rate ◽  
Whole Plants

Peas (Pisum sativum L.) belong among the world’s oldest domesticated crops, serving as a source of proteins, complex carbohydrates, vitamins and minerals. Autumn sowing allows a higher biomass production as well as the avoidance of the drought and heat stresses of late spring. However, the character of European continental winters limits plant growth and development through cold stress. This work sought parameters that reflect the cold tolerance of pea plants and consequently to suggest an afila-type pea cultivar with resilience to European continental winters. For this purpose, we employed indoor remote sensing technology and compared the 22-day-long acclimation to 5 °C of four pea cultivars: Arkta, with normal leaves and the known highest cold resistance to European continental winters, and Enduro, Terno and CDC Le Roy, all of the afila type. Besides evaluation of shoot growth rate and quenching analysis of chlorophyll fluorescence (ChlF) by imaging methods, we measured the chlorophyll content and ChlF induction with a nonimaging fluorometer. Here we show that the acclimation to cold of the Arkta exhibits a different pattern than the other cultivars. Arkta showed the fastest retardation of photosynthesis and shoot growth, which might be part of its winter survival strategy. Terno, on the other hand, showed sustained photosynthetic performance and growth, which might be an advantageous strategy for spring. Surprisingly, Enduro showed sustained photosynthesis in the stipules, which transferred and acclimated to 5 °C (cold-acclimated). However, of all the cultivars, Enduro had the strongest inhibition of photosynthesis in new stipules that developed after the transition to cold (cold-developed). We conclude that the parameters of ChlF spatial imaging calculated as averages from whole plants are suboptimal for the characterization of various cold acclimation strategies. The most marked changes were obtained when the new cold-developed leaves were analyzed separately from the rest of the plant.

Shedding some light on cold acclimation, cold adaptation, and phenotypic plasticity

Botany ◽  
2013 ◽  
Vol 91 (3) ◽  
pp. 127-136 ◽  
Author(s):  
Norman P.A. Hüner ◽  
Rainer Bode ◽  
Keshav Dahal ◽  
Florian A. Busch ◽  
Marc Possmayer ◽  
...  
Keyword(s):  
Phenotypic Plasticity ◽  
Cold Acclimation ◽  
Pinus Banksiana ◽  
Photosynthetic Apparatus ◽  
Nuclear Gene ◽  
Crop Productivity ◽  
Photosynthetic Performance ◽  
Brassica Napus L ◽  
Cellular Energy ◽  
Excitation Pressure

In the past, the role of light as an energy source was largely ignored in research focused on cold acclimation and freezing tolerance in plants. However, cold acclimation is an energy-requiring process. We summarize research illustrating that photoautrophs as diverse as cyanobacteria (Plectonema boryanum), green algae (Chlorella vulgaris, Dunaliella salina, Chlamydomonas raudensis), crop plants (Triticum aestivum L., Secale cereale L., Brassica napus L.), and conifers (Pinus banksiana) L.) tailor the structure and function of the photosynthetic apparatus to changes in temperature and irradiance to maintain cellular energy balance called photostasis. Modulation of either temperature or irradiance results in a similar imbalance in cellular energy that is sensed through changes in chloroplastic excitation pressure. Thus, concepts of photostasis and excitation pressure provide the context through which one can explain the congruence of phenotypic plasticity and photosynthetic performance associated with cold acclimation and photoacclimation. Photosynthetic organisms can sense changes in temperature and irradiance through modulation of the redox state of the photosynthetic electron transport chain, which, in turn, governs phenotype through the regulation of nuclear gene expression and chloroplast biogenesis. We suggest that elucidation of the molecular mechanism(s) by which excitation pressure regulates phenotypic plasticity and photosynthetic performance will be essential in addressing the challenge of maintaining or perhaps enhancing crop productivity under the suboptimal growth conditions predicted to occur as a consequence of climate change.

Marker Trait Association for Autumn Cold Acclimation and Growth Rhythm in Pinus sylvestris

2003 ◽  
Vol 18 (1) ◽  
pp. 29-38 ◽  
Author(s):  
Reza Yazdani ◽  
Jan-erik Nilsson ◽  
Christophe Plomion ◽  
Gaurov Mathur
Keyword(s):  
Pinus Sylvestris ◽  
Cold Acclimation ◽  
Growth Rhythm ◽  
Trait Association

Effects of Tillage Methods and Nitrogen Fertilizer Types on Photosynthetic Performance of Summer Maize

2017 ◽  
Vol 43 (6) ◽  
pp. 925
Author(s):  
Bin ZHENG ◽  
Wei ZHAO ◽  
Zheng XU ◽  
Da-Peng GAO ◽  
Yuan-Yuan JIANG ◽  
...  
Keyword(s):  
Nitrogen Fertilizer ◽  
Photosynthetic Performance ◽  
Summer Maize ◽  
Tillage Methods

Effects of CO2and UV radiation on photosynthetic performance of conchocelis ofPyropia haitanensis

2013 ◽  
Vol 37 (8) ◽  
pp. 1198
Author(s):  
Yuling YANG ◽  
Wei LI ◽  
Weizhou CHEN ◽  
Juntian XU
Keyword(s):  
Uv Radiation ◽  
Photosynthetic Performance
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