ALLOCHEMICAL EFFECTS OF COUMARIN ON SOME PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS OF LETTUCE

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RAZAVI SEYED MEHDI; HOSEINZADEH HADI; ZAHRI SABER

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Journal: JOURNAL OF PLANT PROCESS AND FUNCTION Year:2016 | Volume:5 | Issue:17 Page(s): 191-200

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Title

ALLOCHEMICAL EFFECTS OF COUMARIN ON SOME PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS OF LETTUCE

Author(s)

RAZAVI SEYED MEHDI | HOSEINZADEH HADI | ZAHRI SABER | Issue Writer Certificate

Keywords

COUMARINQ2

ALLELOPATHYQ2

ELECTROPHORESISQ2

Abstract

COUMARINs are regarded as a class of plant secondary metabolites of phenyl propanoid group distributed in Apiaceae family. Cocumarin is the simplest compound in this family. In the present work, allelopathic potentiality of COUMARIN onLactuca sativa cv. siahoo from physiological and biochemical aspects, was investigated. At first stage, the effects of different concentration of the compound on some growth parameters of the plant such as seed germination, radicle and gemmule growth were studied. After determination of the compound optimal concentration, the germinated seeds of lettuce were cultured in peat contained pots and then were watered with Hoagland nutrition solution enriched with 2 and 10 mg/mL of COUMARIN. After plant growth, the effects of COUMARIN on some physiological and biochemical parameters were evaluated. Our results showed that lettuce seed germination was reduced by COUMARIN in a dose dependent manner. At the concentration of 1mg/mL the germination was inhibited entirely. Radicle and gemmule growth, fresh and dry weight of roots and aerial parts of treated plants and SPAD chlorophyll was significantly reduced by COUMARIN treating. However, no significant difference was recorded in chlorophyll florescence between control and COUMARIN treated plants. The specific activity of some antioxidant enzymes like catalase, protease and poly phenol oxidase was increased in treated plants compared to the control, however, the activity of ascorbate peroxidase was decreased. Total protein decreased and quantitative and qualitative changes in electrophoretic pattern of aerial parts proteins were observed in treated group than control. It was concluded that COUMARIN as an allochemical afected lettuce of different physiological and biochemical aspects. The plant response to the stress as allochemical stress was similar to some abiotic stress such as drought or salinity.

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APA: Copy

RAZAVI, SEYED MEHDI, HOSEINZADEH, HADI, & ZAHRI, SABER. (2016). ALLOCHEMICAL EFFECTS OF COUMARIN ON SOME PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS OF LETTUCE. JOURNAL OF PLANT PROCESS AND FUNCTION, 5(17), 191-200. SID. https://sid.ir/paper/234191/en

Vancouver: Copy

RAZAVI SEYED MEHDI, HOSEINZADEH HADI, ZAHRI SABER. ALLOCHEMICAL EFFECTS OF COUMARIN ON SOME PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS OF LETTUCE. JOURNAL OF PLANT PROCESS AND FUNCTION[Internet]. 2016;5(17):191-200. Available from: https://sid.ir/paper/234191/en

IEEE: Copy

SEYED MEHDI RAZAVI, HADI HOSEINZADEH, and SABER ZAHRI, “ALLOCHEMICAL EFFECTS OF COUMARIN ON SOME PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS OF LETTUCE,” JOURNAL OF PLANT PROCESS AND FUNCTION, vol. 5, no. 17, pp. 191–200, 2016, [Online]. Available: https://sid.ir/paper/234191/en

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