Influence of methotrexate on respiration and ultrastructure of meristematic cells from Allium cepa L. roots

Podbielkowska, Maria; Wałęza, Maria; Zobel, Alicja M.

doi:10.5586/asbp.1981.076

Cited by 8 publications

(1 citation statement)

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“…Most of the cells were in interphase of the cell cycle. The observed results can probably be explained with high toxicity of this cytostatic (Podbielkowska et al,1980). The number of irregular phases were increased compared to control group, but was concentration and time dependent.…”

Section: Discussionmentioning

confidence: 76%

Genotoxicity analysis of Fromilid and Methotrexate using Allium test

Cenanovic

2014

scjournal

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Ground Moving Target Indicator (GMTI) and High Resolution Radar (HRR) can track position and velocity of ground moving target. Pose, angle between position and velocity, can be derived from kinematics estimates of position and velocity and it is often used to reduce the search space of a target identification (ID) and Automatic Target Recognition (ATR) algorithms. Due to low resolution in some radar systems, the GMTI estimated pose may exhibit large errors contributing to a faulty identification of potential targets. Our goal is to define new methodology to improve pose estimate. Besides applications in target tracking, there are numerous commercial applications in machine learning, augmented reality and body tracking.

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Section: Discussionmentioning

confidence: 76%

Genotoxicity analysis of Fromilid and Methotrexate using Allium test

Cenanovic

2014

scjournal

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Effect of coumarin and xanthotoxin on mitochondrial structure, oxygen uptake, and succinate dehydrogenase activity in onion root cells

Kupidłowska¹,

Dobrzyńska²,

Parys³

et al. 1994

J Chem Ecol

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At concentrations in which they occur on the plant surface and retard mitosis, coumarin and xanthotoxin lowered uptake of oxygen (by 60 and 30%, respectively) by meristematic cells ofAllium cepa root tips. They caused changes in the structure of the mitochondrial matrix to become dense, and protrusions of mitochondrial membranes were visible parallelling their hypertrophy, indicating alteration in the structure and physiology of these organelles. Coumarin and, to a lesser extent, xanthotoxin increased succinate dehydrogenase production in mitochondria and also in the cytoplasm, indicating changes in membrane permeability. Changes in oxygen uptake and mitochondrial structure, in addition to the retardation of mitosis, may be the reason these compounds act as allelochemicals after they have been removed from the plant surface and reach the root meristem.

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Secretory organelle and mitochondrial alterations induced by fusaric acid in root cells of Zea mays

Arias

1985

Physiological Plant Pathology

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Influence of methotrexate on respiration and ultrastructure of meristematic cells from Allium cepa L. roots

Cited by 8 publications

References 0 publications

Genotoxicity analysis of Fromilid and Methotrexate using Allium test

Genotoxicity analysis of Fromilid and Methotrexate using Allium test

Effect of coumarin and xanthotoxin on mitochondrial structure, oxygen uptake, and succinate dehydrogenase activity in onion root cells

Secretory organelle and mitochondrial alterations induced by fusaric acid in root cells of Zea mays

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