Measurements of freezing tolerance and their relationship with some biochemical and physiological parameters in seven olive cultivars

Saadati, Safoora; Baninasab, Bahram; Mobli, M.; Gholami, Mahdiyeh

doi:10.1007/s11738-019-2843-8

Cited by 22 publications

(27 citation statements)

References 58 publications

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“…Cold stress also seriously hinders the development of the jujube industry; for example, the quality and productivity of fruits are negatively affected when exposed to low temperature. In terms of woody plants, most studies are focused on physiological and biochemical factors, and little is known about the molecular mechanisms of freezing tolerance [36,37]. Saadati et al [37] analyzed the freezing tolerance of seven olive cultivars by measuring some biochemical and physiological parameters.…”

Section: Introductionmentioning

confidence: 99%

“…In terms of woody plants, most studies are focused on physiological and biochemical factors, and little is known about the molecular mechanisms of freezing tolerance [36,37]. Saadati et al [37] analyzed the freezing tolerance of seven olive cultivars by measuring some biochemical and physiological parameters. Nui et al [38] found some candidate genes potentially involved in freezing tolerance in Prunus persica through highthroughput RNA sequencing.…”

Section: Introductionmentioning

confidence: 99%

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Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars

Zhou

Zhu

et al. 2020

BMC Plant Biol

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Background: Low temperature is a major factor influencing the growth and development of Chinese jujube (Ziziphus jujuba Mill.) in cold winter and spring. Little is known about the molecular mechanisms enabling jujube to cope with different freezing stress conditions. To elucidate the freezing-related molecular mechanism, we conducted comparative transcriptome analysis between 'Dongzao' (low freezing tolerance cultivar) and 'Jinsixiaozao' (high freezing tolerance cultivar) using RNA-Seq. Results: More than 20,000 genes were detected at chilling (4°C) and freezing (− 10°C, − 20°C, − 30°C and − 40°C) stress between the two cultivars. The numbers of differentially expressed genes (DEGs) between the two cultivars were 1831, 2030, 1993, 1845 and 2137 under the five treatments. Functional enrichment analysis suggested that the metabolic pathway, response to stimulus and catalytic activity were significantly enriched under stronger freezing stress. Among the DEGs, nine participated in the Ca 2+ signal pathway, thirty-two were identified to participate in sucrose metabolism, and others were identified to participate in the regulation of ROS, plant hormones and antifreeze proteins. In addition, important transcription factors (WRKY, AP2/ERF, NAC and bZIP) participating in freezing stress were activated under different degrees of freezing stress. Conclusions: Our research first provides a more comprehensive understanding of DEGs involved in freezing stress at the transcriptome level in two Z. jujuba cultivars with different freezing tolerances. These results may help to elucidate the molecular mechanism of freezing tolerance in jujube and also provides new insights and candidate genes for genetically enhancing freezing stress tolerance.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars

Zhou

Zhu

et al. 2020

BMC Plant Biol

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“…Another study tested the freezing tolerance of olive trees by determining the bark DPPH scavenging activity. It was seen that the high level of DPPH scavenging capacity was related to an increase in freezing tolerance as a mechanism of defense against the overproduction of ROS [ 66 ]. Bark antioxidant activity can be associated with the high amount of phenolic compounds [ 67 ] since, like wood, it was rich in oleoperin and hydroxytirosol.…”

Section: Resultsmentioning

confidence: 99%

Olive Trees By-Products as Sources of Bioactive and Other Industrially Useful Compounds: A Systematic Review

et al. 2021

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The need to produce an ever-increasing quantity of material products and food resulting from the planet globalization process has contributed to the spread of modern agriculture based on a linear production resulting in the generation of tons of waste. This huge amount of waste is generally accumulated in landfills, causing different environmental problems. Hence, researchers moved on to study the processes used to recover agro-industrial by-products within a circular and sustainable bio-economy concept. A systematic quest on Scopus and PubMed databases was performed to identify the data available to date on recycling agro-industrial by-products of Olea europaea L. This systematic review summarizes the knowledge regarding the use of olive trees by-products for producing animal feed, biocomposites, bioethanol, cellulose pulp, activated carbon, and as a fuel source for energy production. Furthermore, the data regarding the potential biological activity of extracts from olive roots, wood, bark, and pruning were analyzed. Olive trees by-products are, indeed, rich in molecules with antioxidant, antimicrobial, cardioprotective, and anticancer activity, representing a promising candidate for treat several human diseases.

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“…Measurement of the Malondialdehyde (MDA), proline and chlorophyll (CHL) contents MDA content was measured according to the thiobarbituric acid (TBA) reaction previously reported by Saadati et al (2019). Briefly, leaf samples were homogenized in 1ml of 0.1% trichloroacetic acid (TCA) and centrifuged at 12000 × g for 10min, followed by the addition of 1ml of 20% TCA containing 0.5% TBA was added into 0.5ml of the supernatant aliquot.…”

Section: Estimation Of Leaf Relative Water Content (Lrwc) Membrane Smentioning

confidence: 99%

Impact of Salinity Stress on Membrane Status, Phytohormones, Antioxidant Defense System and Transcript Expression Pattern of Two Contrasting Sorghum Genotypes

Amoah

Berko

2020

Egypt. J. Agron.

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S ALINITY stress significantly impacts the growth, development and yield of sorghum. Knowledge about the productivity of sorghum under salinity stress condition is lagging, due to the marginally limited information about the physio-biochemical and molecular mechanisms underpinning salinity stress tolerance. The study aimed to investigate the physio-biochemical and molecular mechanisms associated with the differential responses under salinity stress condition in sorghum. To achieve our objectives, the physiological and biochemical salinity stress parameters, including membrane stability index, enzyme antioxidant activities, proline and chlorophyll contents, measured at the seedling stage, were elucidated to identify the salinity stress response status of the genotypes. The quantitative real-time polymerase chain reaction (qPCR) was perform to elucidate the expression pattern of different categories of genes under salinity stress in sorghum genotypes. From our results, enhanced enzyme antioxidant activities, membrane status, increased proline content and lower K + /Na + concentration under 300mM NaCl stress identified PI 585451 to be the most salinity stress-tolerant genotype. Nevertheless, increased MDA and Na + /K + level, lower proline, chlorophyll content and antioxidant enzyme activities in PI 585454 marked it to be sensitive to salinity stress. Besides, the transcript expression analysis of different genes, showed an upregulation in PI 585451 than in PI 585454. The results highlighted the differences in metabolic response to salinity stress that may play an important role in the provision of information, required for breeding and development of sorghum genotypes that are tolerant to salinity stress.

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Measurements of freezing tolerance and their relationship with some biochemical and physiological parameters in seven olive cultivars

Cited by 22 publications

References 58 publications

Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars

Comparative transcriptome profiling reveals cold stress responsiveness in two contrasting Chinese jujube cultivars

Olive Trees By-Products as Sources of Bioactive and Other Industrially Useful Compounds: A Systematic Review

Impact of Salinity Stress on Membrane Status, Phytohormones, Antioxidant Defense System and Transcript Expression Pattern of Two Contrasting Sorghum Genotypes

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