Morphological and biochemical characteristics of dreb2a mutant plant grown under normal conditions

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KOOHSARI SOMAYEH; BAGHERIEH NAJJAR MOHAMMAD BAGHER; SADEGHIPOUR HAMID REZA; Kohan Baghkheirati Eisa

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Journal Paper

Paper Information

Journal: JOURNAL OF PLANT PROCESS AND FUNCTION Year:2020 | Volume:9 | Issue:35 Page(s): 23-38

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Title

Morphological and biochemical characteristics of dreb2a mutant plant grown under normal conditions

Author(s)

KOOHSARI SOMAYEH | BAGHERIEH NAJJAR MOHAMMAD BAGHER | SADEGHIPOUR HAMID REZA | Kohan Baghkheirati Eisa | Issue Writer Certificate

Keywords

Arabidopsis thalianaQ1

Environment stressesQ1

Antioxidant enzymesQ1

Transcription FactorsQ1

dreb mutantsQ1

Abstract

DREB Transcription Factors are one of the largest families of Transcription Factors in plants that are believed to play important regulatory functions in tolerance to environmental stress, but there is no complete information on their role in controlling the morphological and antioxidant properties of grown plants under normal conditions. In this study, some phenotypic characteristics of the dreb2a and dreb1a mutant arabidopsis were compared to the wild plant under normal growth conditions. Most properties of dreb2a were similiar to those of dreb1a mutant, but significantly different from the wild type. Both mutant lines showed accelerated emergence of radicle and cotyledons, but delayed appearance of bolting. Lateral branches formed on the flowering bolt in the mutant lines were 25% less, while the flowering axes were 20% more than that in the wild type plants. Both mutant lines displayed higher total number of siliques per plant (about 10%), total number of seeds per plant (about 40%) and total seed weight per plant (about 13%), while, they had lower seed soluble protein content and the cruciferin/napin ratio, as compared to the wild type. It is noteworthy that in 14-day seedlings and leaves of the plant at the stage of reproduction in two mutant lines compared to the wild line, the activity of antioxidant superoxide dismutase and peroxidase activity was on average 35% and hydrogen peroxide was on average 70% higher. These data indicated that the change in the expression of the studied genes played a key role in controlling the morphological and antioxidant status of the plants grown under normal conditions, and studying the cascade stages of the signal transduction managed by DREB family Transcription Factors can lead to a deeper understanding of the response mechanism of these plants to various environmental stresses.

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APA: Copy

KOOHSARI, SOMAYEH, BAGHERIEH NAJJAR, MOHAMMAD BAGHER, SADEGHIPOUR, HAMID REZA, & Kohan Baghkheirati, Eisa. (2020). Morphological and biochemical characteristics of dreb2a mutant plant grown under normal conditions. JOURNAL OF PLANT PROCESS AND FUNCTION, 9(35 ), 23-38. SID. https://sid.ir/paper/374839/en

Vancouver: Copy

KOOHSARI SOMAYEH, BAGHERIEH NAJJAR MOHAMMAD BAGHER, SADEGHIPOUR HAMID REZA, Kohan Baghkheirati Eisa. Morphological and biochemical characteristics of dreb2a mutant plant grown under normal conditions. JOURNAL OF PLANT PROCESS AND FUNCTION[Internet]. 2020;9(35 ):23-38. Available from: https://sid.ir/paper/374839/en

IEEE: Copy

SOMAYEH KOOHSARI, MOHAMMAD BAGHER BAGHERIEH NAJJAR, HAMID REZA SADEGHIPOUR, and Eisa Kohan Baghkheirati, “Morphological and biochemical characteristics of dreb2a mutant plant grown under normal conditions,” JOURNAL OF PLANT PROCESS AND FUNCTION, vol. 9, no. 35 , pp. 23–38, 2020, [Online]. Available: https://sid.ir/paper/374839/en

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