Effect of Light on the Photosynthetic Activity during Desiccation of the Resurrection Plant Haberlea Rhodopensis

2013 ◽  
pp. 536-539
Author(s):  
Katya Georgieva ◽  
Snejana Doncheva ◽  
Gergana Mihailova ◽  
Snejana Petkova
Keyword(s):  
Photosynthetic Activity ◽  
Resurrection Plant ◽  
Haberlea Rhodopensis ◽  
Effect Of Light

scholarly journals Effect of Light Quality and Microbiological Inoculum on Geranium (Pelargonium zonale L.) Gas Exchange Parameters

2016 ◽  
Vol 44 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Anita Barbara SCHROETER-ZAKRZEWSKA ◽  
Klaudia BOROWIAK ◽  
Agnieszka WOLNA-MARUWKA
Keyword(s):  
Blue Light ◽  
Transpiration Rate ◽  
Light Quality ◽  
Photosynthetic Activity ◽  
Intercellular Co2 Concentration ◽  
Fluorescent Light ◽  
Gas Exchange Parameters ◽  
Pelargonium Zonale ◽  
Effective Microorganisms ◽  
Effect Of Light

Geranium plants were cultivated in a growth chamber with different light quality and microorganism inoculation conditions. The long-term effect of irradiance quality (LED and fluorescent) as well as two types of microorganism treatments on photosynthetic activity parameters was examined. The maximum reached values of net photosynthesis rate (PN), stomatal conductance (gs), transpiration rate (E) and intercellular CO2 concentration (Ci) were afterwards measured in plants cultivated under six colours of light – white, white-blue, blue, red, red-blue and green – emitted by two types of lamp: LED and fluorescent. Two types of microorganism treatments were used: BAF1 created in the Department of General and Environmental Microbiology and the commonly used Effective Microorganisms (EM) biopreparation. A highest level of PN were found in plants after cultivation under white-blue light (both – fluorescent and LED) and treated by BAF1. The positive effect of EM was only noted in the case of plants cultivated under blue-red fluorescent light. Considering plants without microbial inoculation the highest levels were recorded in plants under red and blue light. The comparison of the effect of light quality revealed that in all colours a higher or similar level of net photosynthetic rate was noted in plants under LEDs. Mostly the higher photosynthetic activity was connected with higher stomatal opening as well as with higher transpiration rate, which is especially true for plants cultivated under red and blue LED light.

scholarly journals Water molecular structure underpins extreme desiccation tolerance of the resurrection plant Haberlea rhodopensis

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Shinichiro Kuroki ◽  
Roumiana Tsenkova ◽  
Daniela Moyankova ◽  
Jelena Muncan ◽  
Hiroyuki Morita ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Desiccation Tolerance ◽  
Resurrection Plant ◽  
Haberlea Rhodopensis

Desiccation of the resurrection plant Haberlea rhodopensis at high temperature

2011 ◽  
Vol 108 (1) ◽  
pp. 5-13 ◽  
Author(s):  
Gergana Mihailova ◽  
Snejana Petkova ◽  
Claudia Büchel ◽  
Katya Georgieva
Keyword(s):  
High Temperature ◽  
Resurrection Plant ◽  
Haberlea Rhodopensis

scholarly journals The sensitivity of herbaceous plants to light Pollution

2021 ◽  
Vol 46 ◽  
pp. 173-181
Author(s):  
Magdolna Dani ◽  
Péter Molnár ◽  
Anna Skribanek
Keyword(s):  
Photosynthetic Activity ◽  
Net Photosynthesis ◽  
Light Pollution ◽  
Physiological Effects ◽  
Herbaceous Species ◽  
Low Intensity ◽  
Physiological Processes ◽  
Erigeron Annuus ◽  
Bud Breaking ◽  
Effect Of Light

Plants living near street lights in temperate zones are good examples of the effect of light pollution with a marked shift in leaf fall and bud breaking. Low intensity light (light pollution) is not sufficient for photosynthesis, but can cause changes in many physiological processes, moreover, it can have a disrupting effect on the plant and its connected ecosystem. In this study, physiological effects of light pollution on leaf morphology, leaf anatomy, and photosynthesis were investigated in the herbaceous species Erigeron annuus (L.) Pers. and Fallopia x bohemica (Chrtek et Chrtková) J.P. Bailey under conventional HPS and LED illumination. In our experience, HPS lamps supported the photosynthetic activity of the studied species, the growth of palisade tissue cells. Light pollution of LED lamps reduced net photosynthesis in both species compared to non-light-polluted leaves.

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