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Paper Information

Journal:   IRANIAN JOURNAL OF PLANT BIOLOGY   FALL 2015 , Volume 7 , Number 25; Page(s) 17 To 28.
 
Paper: 

EFFECT OF SALICYLIC ACID ON TOBACCO (NICOTIANA RUSTICA) PLANT UNDER DROUGHT CONDITIONS

 
 
Author(s):  HABIBI GHADER*, SADEGHIPOUR ZIENAB, HAJIBOLAND ROGHIEH
 
* DEPARTMENT OF BIOLOGY, PAYAME NOOR UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Drought stress impact photosynthesis and stomatal conductance, and may reduce the overall production capacity of plants. Since exogenous application of salicylic acid (SA) can partially alleviatebe increased the negative effects tolerance of drought stress by improve the metabolism pathways and increase the net photosynthesison plant photosynthesis and metabolism, the main objective of this study was to clarify the roles of SA in enhancing 28 days tobacco (Nicotiana rustica Basmas) tolerance to drought stress (50% FC). The results indicated that foliar application of SA (0.5 mM) influenced negatively net CO2 assimilation rate and stomatal conductance and led to reduction of shoot and root dry masses. In contrast, the stress did not reduce significantly the maximal quantum yield of photosystem II (PSII). This that can be explained by enhancement of efficiency for dissipation of excess photon energy in the PSII antenna, determined as non-photochemical quenching, and consequently further protection of PSII from photodamage. Thus, under more drought stress, the reduction of photosynthesis of tobacco plants was due mainly to reduction of stomatal conductance. Under water-deficient conditions, plants showed an increase in chlorophyll a and amino acids concentrations in the leaves when treated with SA while this change for net photosynthesis was negligible. Our results indicated showed that the foliar application of SA had no ameliorative effect on tobacco growth under drought stress, because its effect on elevation of transpiration rate did not increase net photosynthesis under drought condition.

 
Keyword(s): SALICYLIC ACID, NICOTIANA RUSTICA, NON-PHOTOCHEMICAL QUENCHING, DROUGHT, PHOTOSYNTHESIS, TRANSPIRATION RATE, CHLOROPHYLL A
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

HABIBI, G., & SADEGHIPOUR, Z., & HAJIBOLAND, R. (2015). EFFECT OF SALICYLIC ACID ON TOBACCO (NICOTIANA RUSTICA) PLANT UNDER DROUGHT CONDITIONS. IRANIAN JOURNAL OF PLANT BIOLOGY, 7(25), 17-28. https://www.sid.ir/en/journal/ViewPaper.aspx?id=508252



Vancouver: Copy

HABIBI GHADER, SADEGHIPOUR ZIENAB, HAJIBOLAND ROGHIEH. EFFECT OF SALICYLIC ACID ON TOBACCO (NICOTIANA RUSTICA) PLANT UNDER DROUGHT CONDITIONS. IRANIAN JOURNAL OF PLANT BIOLOGY. 2015 [cited 2021July30];7(25):17-28. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=508252



IEEE: Copy

HABIBI, G., SADEGHIPOUR, Z., HAJIBOLAND, R., 2015. EFFECT OF SALICYLIC ACID ON TOBACCO (NICOTIANA RUSTICA) PLANT UNDER DROUGHT CONDITIONS. IRANIAN JOURNAL OF PLANT BIOLOGY, [online] 7(25), pp.17-28. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=508252.



 
 
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