Protective roles of exogenous polyamines on chromosomal aberrations in Hordeum vulgare exposed to salinity

Tabur, Selma; Demir, Kıymet

doi:10.2478/s11756-010-0118-3

Cited by 19 publications

(19 citation statements)

References 43 publications

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“…Thus, Gairdner maintained the longest total seminal root length, and Clipper showed the most significant reduction in total seminal root length. A reduction in root growth after exposure to salt stress is associated with an inhibition of cell division and cell expansion, as previously reported in barley (Shelden et al, 2013;Tabur & Demir, 2009;Tabur & Demir, 2010).…”

Section: Impact Of a Short-term Salt Stress On Barley Seminal Root supporting

confidence: 79%

Comparative spatial lipidomics analysis reveals cellular lipid remodelling in different developmental zones of barley roots in response to salinity

Sarabia

Boughton²,

Rupasinghe³

et al. 2019

Plant Cell & Environment

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Salinity‐induced metabolic, ionic, and transcript modifications in plants have routinely been studied using whole plant tissues, which do not provide information on spatial tissue responses. The aim of this study was to assess the changes in the lipid profiles in a spatial manner and to quantify the changes in the elemental composition in roots of seedlings of four barley cultivars before and after a short‐term salt stress. We used a combination of liquid chromatography–tandem mass spectrometry, inductively coupled plasma mass spectrometry, matrix‐assisted laser desorption/ionization mass spectrometry imaging, and reverse transcription – quantitative real time polymerase chain reaction platforms to examine the molecular signatures of lipids, ions, and transcripts in three anatomically different seminal root tissues before and after salt stress. We found significant changes to the levels of major lipid classes including a decrease in the levels of lysoglycerophospholipids, ceramides, and hexosylceramides and an increase in the levels of glycerophospholipids, hydroxylated ceramides, and hexosylceramides. Our results revealed that modifications to lipid and transcript profiles in plant roots in response to a short‐term salt stress may involve recycling of major lipid species, such as phosphatidylcholine, via resynthesis from glycerophosphocholine.

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Section: Impact Of a Short-term Salt Stress On Barley Seminal Root supporting

confidence: 79%

Comparative spatial lipidomics analysis reveals cellular lipid remodelling in different developmental zones of barley roots in response to salinity

Sarabia

Boughton²,

Rupasinghe³

et al. 2019

Plant Cell & Environment

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“…The prophase and metaphase cells with uncoiled chromosomes may be the result of disorderly chromosome contractions. Also, anaphase and telophase bridges could be the result of inversions (Tabur and Demir 2010b). Shortly, AvLE might function as a stimulator triggering the synthesis of proteins necessary for normal cell division and accelerate the mitotic cycle.…”

Section: Physiological and Cytogenetical Effects Of Exogenous Avle Inmentioning

confidence: 99%

The Effects of Aloe vera L. Leaf Extract on Some Physiological and Cytogenetical Parameters in Allium cepa L. Seeds Germinated under Salt Stress

2016

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SummaryThe present study was performed to evaluate the role of Aloe vera L. leaf extract (AvLE) on some physiological and cytogenetical parameters of Allium cepa L. seeds exposed to salinity. The radicle length of the seeds germinated in the medium with AvLE alone increased as compared with ones of the control seeds germinated in distilled water medium, while their radicle number and fresh weight reduced according to the control. In addition, the germination percentage of the mentioned seeds statistically was the same as the control seeds. Furthermore, the seeds germinated in the media containing 0.1 mg/L AvLE alone showed a significant increase of mitotic index, although they exhibited a higher number of chromosomal aberrations and micronucleus (MN) formation as compared with the seeds germinated in control conditions. On the other hand, salt stress considerably inhibited the seed germination and seedling growth of A. cepa. Moreover, salinity markedly decreased the mitotic index in root tip meristems of the seeds and increased the number of chromosomal aberrations. The negative effect of salt on the seed germination, seedling growth, mitotic activity and MN formation was alleviated in dramatically varying degrees by AvLE application. In contrast, the detrimental effects of salt on the chromosomal aberrations greatly increased with this treatment. Consequently, we reported that the application of AvLE alone induced chromosomal aberrations and MN formation, which are an indicator of genotoxicity, and had cytotoxic activity in normal conditions. However, the frequency of MN is greatly reduced in root tip cells of the seeds germinated in the medium containing 0.1 mg/L AvLE +0.15 M NaCl.

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“…Exogenous growth regulator application may cause a positive or negative effect on the seed germination, seedling growth, mitotic activity and chromosomal behaviors under non-stress conditions (Ünal et al 2002, Çavuşoğlu et al 2007, Tabur and Demir 2010b. But, there are few studies about the effects of GbLE on the seed germination, seedling growth, mitotic activity and chromosomal behaviors under normal conditions.…”

Section: Physiological and Cytogenetical Effects Of Exogenously Gble mentioning

confidence: 99%

“…Mitotic irregularities, such as fault polarization and bridge in anaphase and telophase may be mainly the result of spindle dysfunction and constitute a significant portion of chromosomal aberrations. Since spindle dysfunction may lead to abnormal segregation of chromosomes due to defective microtubule-kinetochore interaction and abnormal mitotic segregation of chromosomes triggers bridge formations (Tabur and Demir 2010b).…”

Section: Physiological and Cytogenetical Effects Of Exogenously Gble mentioning

confidence: 99%

“…Equatorial plate divided to two and disorderly anaphase may result from unequal distribution of chromosome and spindle dysfunction. Also, anaphase and telophase bridges could be the result of inversions (Tabur and Demir 2010b). In short, GbLE might be function as a stimulator triggering the synthesis of protein necessary for the normal cell division and accelerating mitotic cycle.…”

Section: Physiological and Cytogenetical Effects Of Exogenous Gble Inmentioning

confidence: 99%

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Role of Ginkgo biloba L. Leaf Extract on Some Physiological and Cytogenetical Parameters in Allium cepa L. Seeds Exposed to Salt Stress

2016

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SummaryIn this project, the effects of Ginkgo biloba L. leaf extract (GbLE) on the seed germination, seedling growth (radicle length, radicle number and fresh weight), mitotic activity and chromosomal aberrations of Allium cepa L. germinated under both normal conditions and salt stress were studied. The radicle length of seeds germinated in the medium with GbLE alone increased in comparison with ones of the control seeds germinated in distilled water medium while their fresh weight reduced according to the control. However, the germination percentage and radicle number of the mentioned seeds were statistically the same as ones of the control seeds. Furthermore, the mitotic index and the frequency of chromosomal aberrations in root tip meristems of A. cepa seeds germinated in the medium with GbLE alone demonstrated a significant increase compared to the control seeds germinated in distilled water medium. On the other hand, salt stress considerably inhibited the seed germination and seedling growth of A. cepa. In addition, it markedly decreased the mitotic index in root tip meristems of the seeds and increased the number of chromosomal aberrations. Whereas, the inhibitive effect of salt on the seed germination, seedling growth and mitotic activity was dramatically alleviated in varying degrees by GbLE application. But, the detrimental effects of salt on the chromosomal aberrations greatly increased with this treatment.

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Protective roles of exogenous polyamines on chromosomal aberrations in Hordeum vulgare exposed to salinity

Cited by 19 publications

References 43 publications

Comparative spatial lipidomics analysis reveals cellular lipid remodelling in different developmental zones of barley roots in response to salinity

Comparative spatial lipidomics analysis reveals cellular lipid remodelling in different developmental zones of barley roots in response to salinity

The Effects of <i>Aloe vera</i> L. Leaf Extract on Some Physiological and Cytogenetical Parameters in <i>Allium cepa</i> L. Seeds Germinated under Salt Stress

Role of <i>Ginkgo biloba</i> L. Leaf Extract on Some Physiological and Cytogenetical Parameters in <i>Allium cepa</i> L. Seeds Exposed to Salt Stress

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