scholarly journals Cell Cycle Delay and Colchicine Like Metaphase Inducing Effects of Scutellaria discolor Colebr. Herb Aqueous Extract in Allium cepa Root Apical Meristem Cells

CYTOLOGIA ◽  
2021 ◽  
Vol 86 (3) ◽  
pp. 255-260
Author(s):  
Tista Chakraborty ◽  
Sujit Roy ◽  
Manabendu Barman ◽  
Sanjib Ray
Keyword(s):  
Cell Cycle ◽  
Allium Cepa ◽  
Aqueous Extract ◽  
Apical Meristem ◽  
Root Apical Meristem ◽  
Cell Cycle Delay

scholarly journals Appraisal of Cell Cycle Delay and Cytotoxicity Inducing Potential of 3-epicaryoptin in Allium Cepa L.

2021 ◽  
Author(s):  
Manabendu Barman ◽  
Sanjib Ray
Keyword(s):  
Cell Cycle ◽  
Medicinal Plant ◽  
Traditional Medicine ◽  
Allium Cepa ◽  
Apical Meristem ◽  
Root Apical Meristem ◽  
Cytotoxic Effects ◽  
Cell Cycle Delay ◽  
Allium Cepa L

Diterpenoid 3-epicaryoptin (C26H36O9) is abundant in leaves of Clerodendrum inerme, a traditionally used medicinal plant, having insect antifeedant activities. Here, we aim to explore its cell cycle delay and cytotoxic effects in Allium cepa root apical meristem cells. Allium cepa roots were treated with 3-epicaryoptin and colchicine for 2, 4, 4+16 h (4 h treatment followed by 16 h recovery) and the induced cell cycle delay and cytotoxic effects were analyzed. The highest metaphase cells frequency for 3-epicaryoptin and colchicine treated samples were found to be 66.2% and 82.35% respectively at 4 h treatment. Treatment of 3-epicaryoptin and colchicine increased the aberrant cells %, CA, MN, c-metaphase, and PP cells. Therefore, indiscriminate use of C. inerme in traditional medicine should be restricted and the cell cycle delay and cytotoxicity inducing effects of 3-epicaryoptin needs further exploration for its cancer chemotherapeutic applications.

scholarly journals Antimitotic and Cytotoxic Effects of Leaf Aqueous Extract of Scadoxus multiflorus (Martyn) Raf. in Allium cepa Root Apical Meristem Cells

CYTOLOGIA ◽  
2021 ◽  
Vol 86 (3) ◽  
pp. 267-271
Author(s):  
Ria Das ◽  
Souren Goswami ◽  
Anuva Barman ◽  
Manabendu Barman ◽  
Sanjib Ray
Keyword(s):  
Allium Cepa ◽  
Aqueous Extract ◽  
Apical Meristem ◽  
Root Apical Meristem ◽  
Cytotoxic Effects ◽  
Leaf Aqueous Extract

The Effect of Waste Water on Root Growth and Mitosis in Onion (Allium cepa) Root Apical Meristem

2006 ◽  
Vol 5 (2) ◽  
pp. 331-334 ◽  
Author(s):  
Feruzan Dane . ◽  
Nuran Ekici . ◽  
Yildiz Kalebasi Akta .
Keyword(s):  
Waste Water ◽  
Root Growth ◽  
Allium Cepa ◽  
Apical Meristem ◽  
Root Apical Meristem

Critical level of radiation damage of root apical meristem and mechanisms for its recovery in Pisum sativum L.

2011 ◽  
Vol 45 (1) ◽  
pp. 18-26 ◽  
Author(s):  
E. A. Kravets ◽  
A. N. Mikheev ◽  
L. G. Ovsyannikova ◽  
D. M. Grodzinsky
Keyword(s):  
Pisum Sativum ◽  
Radiation Damage ◽  
Apical Meristem ◽  
Critical Level ◽  
Root Apical Meristem ◽  
Pisum Sativum L

scholarly journals Sound Waves Promote Arabidopsis thaliana Root Growth by Regulating Root Phytohormone Content

2021 ◽  
Vol 22 (11) ◽  
pp. 5739
Author(s):  
Joo Yeol Kim ◽  
Hyo-Jun Lee ◽  
Jin A Kim ◽  
Mi-Jeong Jeong
Keyword(s):  
Arabidopsis Thaliana ◽  
Cell Division ◽  
Root Growth ◽  
Apical Meristem ◽  
Cell Number ◽  
Root Apical Meristem ◽  
Control Group ◽  
Auxin Signaling ◽  
Ethylene Signaling ◽  
Sound Waves

Sound waves affect plants at the biochemical, physical, and genetic levels. However, the mechanisms by which plants respond to sound waves are largely unknown. Therefore, the aim of this study was to examine the effect of sound waves on Arabidopsis thaliana growth. The results of the study showed that Arabidopsis seeds exposed to sound waves (100 and 100 + 9k Hz) for 15 h per day for 3 day had significantly longer root growth than that in the control group. The root length and cell number in the root apical meristem were significantly affected by sound waves. Furthermore, genes involved in cell division were upregulated in seedlings exposed to sound waves. Root development was affected by the concentration and activity of some phytohormones, including cytokinin and auxin. Analysis of the expression levels of genes regulating cytokinin and auxin biosynthesis and signaling showed that cytokinin and ethylene signaling genes were downregulated, while auxin signaling and biosynthesis genes were upregulated in Arabidopsis exposed to sound waves. Additionally, the cytokinin and auxin concentrations of the roots of Arabidopsis plants increased and decreased, respectively, after exposure to sound waves. Our findings suggest that sound waves are potential agricultural tools for improving crop growth performance.

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