The Role of the Plant Cytoskeleton in Phytohormone Signaling under Abiotic and Biotic Stresses

Blume, Yaroslav B.; Krasylenko, Yuliya; Yemets, А. І.

doi:10.1002/9781118889022.ch23

Cited by 21 publications

(14 citation statements)

References 271 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Normally, the root cap has a characteristic structure and contains from 14 to 16 layers of columella cells from the meristem zone to the apical point. Layers close to the surface have signs of programmed cell death with characteristic densification of the cytoplasm, the disappearance of vacuoles and pronounced plasmolysis [28]. The root meristem has a clear-cut structure that makes it easy to identify the cells of the developing tissues of the exoderm, cortex, pericycle and stele (central cylinder) with a common for normal conditions, reduced level of vacuolization in small cells with large nuclei and nucleoli located in the center of the cells (Figure 1).…”

Section: Resultsmentioning

confidence: 99%

Salt Stress-Induced Structural Changes Are Mitigated in Transgenic Tomato Plants Over-Expressing Superoxide Dismutase

Bogoutdinova

Лазарева

Chaban

et al. 2020

Biology

View full text Add to dashboard Cite

Various abiotic stresses cause the appearance of reactive oxygen species (ROS) in plant cells, which seriously damage the cellular structures. The engineering of transgenic plants with higher production of ROS-scavenging enzyme in plant cells could protect the integrity of such a fine intracellular structure as the cytoskeleton and each cellular compartment. We analyzed the morphological changes in root tip cells caused by the application of iso-osmotic NaCl and Na2SO4 solutions to tomato plants harboring an introduced superoxide dismutase gene. To study the roots of tomato plants cultivar Belyi Naliv (WT) and FeSOD-transgenic line, we examined the distribution of ROS and enzyme-linked immunosorbent detection of α-tubulin. In addition, longitudinal sections of the root apexes were compared. Transmission electronic microscopy of atypical cytoskeleton structures was also performed. The differences in the microtubules cortical network between WT and transgenic plants without salt stress were detected. The differences were found in the cortical network of microtubules between WT and transgenic plants in the absence of salt stress. While an ordered microtubule network was revealed in the root cells of WT tomato, no such degree of ordering was detected in transgenic line cells. The signs of microtubule disorganization in root cells of WT plants were manifested under the NaCl treatment. On the contrary, the cytoskeleton structural organization in the transgenic line cells was more ordered. Similar changes, including the cortical microtubules disorganization, possibly associated with the formation of atypical tubulin polymers as a response to salt stress caused by Na2SO4 treatment, were also observed. Changes in cell size, due to both vacuolization and impaired cell expansion in columella zone and cap initials, were responsible for the root tip tissue modification.

show abstract

Section: Resultsmentioning

confidence: 99%

Salt Stress-Induced Structural Changes Are Mitigated in Transgenic Tomato Plants Over-Expressing Superoxide Dismutase

Bogoutdinova

Лазарева

Chaban

et al. 2020

Biology

View full text Add to dashboard Cite

show abstract

“…These cold-induced changes are thought to be transduced by the cytoskeleton, membrane-bound mechanoreceptors and/or focal adhesion complexes (Blume et al, 2017; Markovskaya and Shibaeva, 2017). Treatment of plants with individual phytohormones has been shown to cause changes in the stability and orientation of microtubules and actin filaments; however, studies that measure the effect of changes in phytohormone concentration on these structural elements during plant stress are lacking (reviewed in Blume et al, 2017). There is some evidence that mechanoreceptors are involved in transmission of cold signals across the plasma membrane.…”

Section: Discussionmentioning

confidence: 99%

Caterpillar Chewing Vibrations Cause Changes in Plant Hormones and Volatile Emissions in Arabidopsis thaliana

et al. 2019

View full text Add to dashboard Cite

Plant perception of insect feeding involves integration of the multiple signals involved: wounding, oral secretions, and substrate borne feeding vibrations. Although plant responses to wounding and oral secretions have been studied, little is known about how signals from the rapidly transmitted vibrations caused by chewing insect feeding are integrated to produce effects on plant defenses. In this study, we examined whether 24 h of insect feeding vibrations caused changes in levels of phytohormones and volatile organic compounds (VOCs) produced by leaves of Arabidopsis thaliana when they were subjected to just feeding vibrations or feeding vibrations and wounding + methyl jasmonate (MeJA), compared to their respective controls of silent sham or wounding + MeJA. We showed that feeding vibrations alone caused a decrease in the concentrations of most phytohormones, compared to those found in control plants receiving no vibrations. When feeding vibrations were combined with wounding and application of MeJA, the results were more complex. For hormones whose levels were induced by wounding and MeJA (jasmonic acid, indole-3-butyric acid), the addition of feeding vibrations caused an even larger response. If the level of hormone was unchanged by wounding and MeJA compared with controls, then the addition of feeding vibrations had little effect. The levels of some VOCs were influenced by the treatments. Feeding vibrations alone caused an increase in β-ionone and decrease in methyl salicylate, and wounding + MeJA alone caused a decrease in benzaldehyde and methyl salicylate. When feeding vibrations were combined with wounding + MeJA, the effects on β-ionone and methyl salicylate were similar to those seen with feeding vibrations alone, and levels of benzaldehyde remained low as seen with wounding + MeJA alone. The widespread downregulation of plant hormones observed in this study is also seen in plant responses to cold, suggesting that membrane fluidity changes and/or downstream signaling may be common to both phenomena.

show abstract

“…For this reason, these components, especially MTs, represent very attractive targets for various chemically (heavy metals) (Horiunova et al, ) or biologically (such as herbicides and fungicides) (Vaughn, ; Nyporko and Blume, ; Komis et al, ) active compounds and different physical factors (i.e., salinity and drought, cold and heat stress, touch and gravity, ultraviolet [UV]‐B irradiation, etc.) (Kordyum et al, ; Wang et al, ; Blume et al, ). The cytoskeleton also participates in the interaction of plant cells with pathogens such as viruses, bacteria, and fungi.…”

Section: Semper In Motumentioning

confidence: 99%

“…Moreover, many physiological responses in plants rely on the perception of environmental and intracellular signals that are transduced via cytoskeleton components (Blancaflor, 2002;Drobak et al, 2004;Wasteneys and Yang, 2004;Blume et al, 2012;Krasylenko et al, 2012). This means that fundamentally important plant responses to biotic and abiotic factors also involve signaling to and through the cytoskeleton (Takemoto and Hardham, 2004;Porter and Day, 2016;Blume et al, 2017;Li and Day, 2019). The pathways and the mechanisms by which these signals are received by cells, and transduced toward the appropruate targeted cytoskeletal structures, constitute one of the most important and rapidly developing areas in modern plant cell biology.…”

Section: Always In Motionmentioning

confidence: 99%

A journey through a plant cytoskeleton: Hot spots in signaling and functioning

Blume

2019

Cell Biology International

Self Cite

View full text Add to dashboard Cite

This survey paper contains a brief analysis of publications included in the special issue of the scientific journal Cell Biology International titled "Plant Cytoskeleton Structure, Dynamics and Functions". The manuscripts in this special issue reflect some new aspects of plant cytoskeleton organization, signaling and functioning, and results from different Ukrainian research groups, and focuses on bringing together scientists working across different instrumental scales.

show abstract

The Role of the Plant Cytoskeleton in Phytohormone Signaling under Abiotic and Biotic Stresses

Cited by 21 publications

References 271 publications

Salt Stress-Induced Structural Changes Are Mitigated in Transgenic Tomato Plants Over-Expressing Superoxide Dismutase

Salt Stress-Induced Structural Changes Are Mitigated in Transgenic Tomato Plants Over-Expressing Superoxide Dismutase

Caterpillar Chewing Vibrations Cause Changes in Plant Hormones and Volatile Emissions in Arabidopsis thaliana

A journey through a plant cytoskeleton: Hot spots in signaling and functioning

Contact Info

Product

Resources

About