Effects of Drought Stress Induced by Polyethylene Glycol on Pigment Content and Photosynthetic Gas Exchange of Pistacia Khinjuk and P. Mutica

Ranjbarfordoei, A.; Samson, Roeland; Damme, Patrick Van; Lemeur, Raoul

doi:10.1023/a:1010946209484

Cited by 52 publications

(23 citation statements)

References 23 publications

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“…Non-stomatal restrictions on CO 2 assimilation under drought stress can be effectively assessed through measuring Chlorophyll based parameters. Energetic status of the chloroplast increases as a consequence of the drought stress which has a direct relationship to that of increased amount of total chlorophyll and Chl a and Chl b [5] among the stressed induced verities. Germination and seedling development under laboratory conditions have been accepted as suitable growth stages for testing the response to abiotic stresses [31] and thus it was employed to evaluate the drought sustaining character of the local varieties of Assa.…”

Section: Resultsmentioning

confidence: 99%

“…The presoaked seeds were first air-dried to eliminate the surface water. They were then placed over blotting paper in the petriplates and were allowed to germinate aseptically under three different osmotic potentials i.e., 0.15 bar, 0.25 bar and 0.56 bar using appropriate concentration of PEG-6000 [5]. Deionised water was used for the control and applied similarly.…”

Section: Methodsmentioning

confidence: 99%

“…Simulation of drought stress by polyethylene glycol (PEG) induces drought stress on the plants [4] and significant deviation from the control continues to increase with the increasing solute potential (Ψs) [5]. PEG-6000 has long been utilized as a reliable marker under laboratory conditions for testing the drought tolerant genotypes.…”

Section: Introductionmentioning

confidence: 99%

“…Exposure to drought stress leads to a significant effect in Chlorophyll-a and Chlorophyll-b contents [5].…”

Section: Introductionmentioning

confidence: 99%

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Water Stress Effects on Leaf Growth and Chlorophyll Content but Not the Grain Yield in Traditional Rice (<i>Oryza sativa</i> Linn.) Genotypes of Assam, India II. Protein and Proline Status in Seedlings under PEG Induced Water Stress

Chutia¹,

Borah²

2012

AJPS

102

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Abiotic stresses can directly or indirectly affect the physiological status of an organism by altering its metabolism, growth, and development. The leaf growth and Chlorophyll content has significantly shown to vary from the control ones while the grain yield was not affected. While many plant species naturally accumulate proline and protein as major organic osmolytes when subjected to different abiotic stresses. These compounds are thought to play adaptive roles in mediating osmotic adjustment and protecting sub cellular structures in stressed plants. Different approaches have been contemplated to increase the concentrations of proline like compounds in plants grown under stress conditions to increase their stress tolerance. Seven different traditional rice varieties of Assam were evaluated for their response to osmolyte production under physiological drought condition through simulation at three levels of osmotic stress of 0.15 bar, 0.25 bar and 0.56 bar of physiological drought initiated by polyethylene glycol (PEG 6000). Along with the evaluation for osmolyte response the different components of genotypic variation for six different drought-sustaining characters in the seven rice varieties were also substantiated. The results indicated that plant height and seed number have significant genotypic coefficient of variability (GCV) and heritability. Verities like Laodubi, Leserihali, Beriabhanga and Borah were screened out as the best drought sustaining variety.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Exposure to drought stress leads to a significant effect in Chlorophyll-a and Chlorophyll-b contents [5].…”

Section: Introductionmentioning

confidence: 99%

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Water Stress Effects on Leaf Growth and Chlorophyll Content but Not the Grain Yield in Traditional Rice (<i>Oryza sativa</i> Linn.) Genotypes of Assam, India II. Protein and Proline Status in Seedlings under PEG Induced Water Stress

Chutia¹,

Borah²

2012

AJPS

102

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“…Czyczyło-Mysza and Myśków (2017), after four weeks of drought, did not determine significant differences in the content of total chlorophyll in two rye inbred lines. A reduced concentration of chlorophyll in tissues of plants growing in drought conditions was demonstrated by Ranjbarfordoei et al (2000). Anjum et al (2003) showed that water stress changed the ratio of chlorophyll a and b.…”

Section: Resultsmentioning

confidence: 96%

Study on changes and relationships of physiological and morphological parameters of rye subjected to soil drought stress

Malinowska¹,

Myśków²,

Czyczyło-Mysza³

et al. 2018

Acta Agroph.

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A b s t r a c t. The study was aimed at the evaluation of the impact of drought stress on the efficiency of the photosynthetic apparatus of rye inbred line GULbw, evaluated based on measurements of chlorophyll fluorescence and gas exchange parameters, water balance, assimilation pigments and morphological characters, and by the analysis of the relationship between these parameters. The experiment was performed on the rye inbred line GULbw (original name: Gülzow 661-67, accession numbers: GueR 412; R 1599), obtained from the gene bank of The Federal ex situ Gene Bank for Agricultural and Horticultural Crop Species of The Leibniz Institute of Plant Genetics and Crop Plant Research Gatersleben. Because of drought, the PSII (photosystem PS II) performance index was reduced, and the decrease tendency of the PI (overall performance index of PSII) value intensified with the length of the stress period. The tested rye line did not exhibit any considerable variability of the maximum quantum efficiency of the PS II (Fv/Fm). Significant differences in the intensity of transpiration, stomatal conductance, and substomatal concentration of CO 2 was determined on day 18 of drought. A significant positive value of the correlation coefficient r was found between PLSN, LSW, LSGN, LSGW, and E, gs, ci. LIST OF SYMBOLS USED C -control, well-watered variant of the experiment; c i -intercellular CO 2 concentration; D -drought, water deficit variant of the experiment; E -transpiration rate; Fm -maximal fluorescence; Fv -maximal variable fluorescence; Fv/Fm -maximal quantum yield of PSII photochemistry; gs -stomatal conductance; LSDW -lateral stalk spikes dry weight; LSGN -productive lateral spikes grain number; LSGW -productive lateral spikes grain weight; LSN -lateral stalk number; LSTGW -productive lateral spikes thousand grain weight; LSW -productive lateral spikes weight; MSGN -main stem grain number; MSGW -main stem grain weight; MSSL -main stem spike length; MSSW -main stem spike weight; MSTGW-main stem thousand grain weight; MSW -main stem dry weight; PC1 -principal component 1, PC2 -principal component 2; PH -plant height; PI -overall performance index of PSII; PL -peduncle length; PLSN -productive lateral spike number; Pn-net photosynthetic rate; PW -plant dry weight; RWC -relative water content; SN -stalk number; T FM -time required to reach maximal fluorescence; WSD -water saturation deficit; WUE -photosynthetic index of water use efficiency; WUEI -instantaneous photosynthetic index of water use efficiency.

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Abiotic Stress Responses in Plants

Ahmad¹,

Prasad²

2012

203

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Effects of Drought Stress Induced by Polyethylene Glycol on Pigment Content and Photosynthetic Gas Exchange of Pistacia Khinjuk and P. Mutica

Cited by 52 publications

References 23 publications

Water Stress Effects on Leaf Growth and Chlorophyll Content but Not the Grain Yield in Traditional Rice (<i>Oryza sativa</i> Linn.) Genotypes of Assam, India II. Protein and Proline Status in Seedlings under PEG Induced Water Stress

Water Stress Effects on Leaf Growth and Chlorophyll Content but Not the Grain Yield in Traditional Rice (<i>Oryza sativa</i> Linn.) Genotypes of Assam, India II. Protein and Proline Status in Seedlings under PEG Induced Water Stress

Study on changes and relationships of physiological and morphological parameters of rye subjected to soil drought stress

Abiotic Stress Responses in Plants

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Effects of Drought Stress Induced by Polyethylene Glycol on Pigment Content and Photosynthetic Gas Exchange of Pistacia Khinjuk and P. Mutica

Cited by 52 publications

References 23 publications

Water Stress Effects on Leaf Growth and Chlorophyll Content but Not the Grain Yield in Traditional Rice (&lt;i&gt;Oryza sativa&lt;/i&gt; Linn.) Genotypes of Assam, India II. Protein and Proline Status in Seedlings under PEG Induced Water Stress

Water Stress Effects on Leaf Growth and Chlorophyll Content but Not the Grain Yield in Traditional Rice (&lt;i&gt;Oryza sativa&lt;/i&gt; Linn.) Genotypes of Assam, India II. Protein and Proline Status in Seedlings under PEG Induced Water Stress

Study on changes and relationships of physiological and morphological parameters of rye subjected to soil drought stress

Abiotic Stress Responses in Plants

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Product

Resources

About

Water Stress Effects on Leaf Growth and Chlorophyll Content but Not the Grain Yield in Traditional Rice (<i>Oryza sativa</i> Linn.) Genotypes of Assam, India II. Protein and Proline Status in Seedlings under PEG Induced Water Stress

Water Stress Effects on Leaf Growth and Chlorophyll Content but Not the Grain Yield in Traditional Rice (<i>Oryza sativa</i> Linn.) Genotypes of Assam, India II. Protein and Proline Status in Seedlings under PEG Induced Water Stress