Effects of the herbicide trifluralin in the initial development of Piptadenia gonoacantha (Fabales: Fabaceae)

Santos, N.M.C.; Amaral, Wander Gladson; Araújo, Fillipe Vieira de; Ferreira, Evander Alves; Castro, Bárbara Monteiro de Castro e; Zanúncio, José Cola; Pereira, Israel Marinho; Santos, José Barbosa dos

doi:10.1080/15226514.2019.1633256

Cited by 4 publications

(1 citation statement)

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“…Significant disturbances occurring in individual cells under the action of NaCl (Figure 14b) and Na2SO4 (Figure 14c) cause significant disorganization and randomness in the formation of the cell wall as a result of disturbances in the formation of the phragmoplast, changing the morphology of a part of the cells. Such disturbances are well described in the literature and are accompanied by patterns of cytoskeleton disturbance, growth damage, and disorganization of the root and shoot shape-for example, under the action of herbicides, toxicants, and edaphic influences [76][77][78][79]-accompanying significant disturbances of symmetry characteristic of growth.…”

Section: Figurementioning

confidence: 99%

Asymmetry of Plant Cell Divisions under Salt Stress

Баранова

Гулевич

2021

Symmetry

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Salt stress causes several damaging effects in plant cells. These commonly observed effects are the results of oxidative, osmotic, and toxic stresses. To ensure normal growth and development of tissues, the cellular compartments of multicellular plants have a unique system that provides the specified parameters of growth and differentiation. The cell shape and the direction of division support the steady development of the organism, the habit, and the typical shape of the organs and the whole plant. When dividing, daughter cells evenly or unevenly distribute the components of cytoplasm. Factors such as impaired osmotic regulation, exposure to toxic compounds, and imbalance in the antioxidant system cause disorders associated with the moving of organelles, distribution transformations of the endoplasmic reticulum, and the vacuolar compartment. In some cases, one can observe a different degree of plasmolysis manifestation, local changes in the density of cytoplasm. Together, these processes can cause disturbances in the direction of cell division, the formation of a phragmoplast, the formation of nuclei of daughter cells, and a violation of their fine structural organization. These processes are often accompanied by significant damage to the cytoskeleton, the formation of nonspecific structures formed by proteins of the cytoskeleton. The consequences of these processes can lead to the death of some cells or to a significant change in their morphology and properties, deformation of newly formed tissues and organs, and changes in the plant phenotype. Thus, as a result of significant violations of the cytoskeleton, causing critical destabilization of the symmetric distribution of the cell content, disturbances in the distribution of chromosomes, especially in polyploid cells, may occur, resulting in the appearance of micronuclei. Hence, the asymmetry of a certain component of the plant cell is a marker of susceptibility to abiotic damage.

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Section: Figurementioning

confidence: 99%