Unsaturated Lipids Change in Olive Tree Drupe and Seed during Fruit Development and in Response to Cold-Stress and Acclimation

D’Angeli, Simone; Altamura, Maria Maddalena

doi:10.3390/ijms17111889

Cited by 33 publications

(20 citation statements)

References 59 publications

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“…The genetic manipulation of fatty acid (FA) unsaturation has been shown to alter the sensitivity of transgenic plants to chilling ( Murata et al, 1992 ). Levels of unsaturated FAs are regulated by FA-desaturase (FAD) activities ( D’Angeli and Altamura, 2016 ). Researchers have found that the extent of the unsaturation of FAs in PG in the thylakoid membrane can protect the photosynthesis system against chilling-induced photoinhibition ( Moon et al, 1995 ; Liu et al, 2008 ).…”

Section: Effects Of Low Temperatures On the Structure Of The Chloroplmentioning

confidence: 99%

Effects of Chilling on the Structure, Function and Development of Chloroplasts

et al. 2018

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Chloroplasts are the organelles that perform energy transformation in plants. The normal physiological functions of chloroplasts are essential for plant growth and development. Chilling is a common environmental stress in nature that can directly affect the physiological functions of chloroplasts. First, chilling can change the lipid membrane state and enzyme activities in chloroplasts. Then, the efficiency of photosynthesis declines, and excess reactive oxygen species (ROS) are produced. On one hand, excess ROS can damage the chloroplast lipid membrane; on the other hand, ROS also represent a stress signal that can alter gene expression in both the chloroplast and nucleus to help regenerate damaged proteins, regulate lipid homeostasis, and promote plant adaptation to low temperatures. Furthermore, plants assume abnormal morphology, including chlorosis and growth retardation, with some even exhibiting severe necrosis under chilling stress. Here, we review the response of chloroplasts to low temperatures and focus on photosynthesis, redox regulation, lipid homeostasis, and chloroplast development to elucidate the processes involved in plant responses and adaptation to chilling stress.

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Section: Effects Of Low Temperatures On the Structure Of The Chloroplmentioning

confidence: 99%

Effects of Chilling on the Structure, Function and Development of Chloroplasts

et al. 2018

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“…The nontraditional plant oils are valuable source of the essential fatty acids, phytosterols, tocopherols, tocotrienols, plastochromanol‐8, squalene, and carotenoids . The composition of the plant oils is dependent on many factors starting from the plant species and genotype, plant growing conditions and abiotic factors, drying conditions, pre‐treatment of raw material before oil extraction and ending with the method of oil extraction and its parameters …”

Section: Introductionmentioning

confidence: 99%

Impact of the Extraction Technique and Genotype on the Oil Yield and Composition of Lipophilic Compounds in the Oil Recovered from Japanese Quince (Chaenomeles japonica) Seeds

Górnaś

Siger

Rudzińska

et al. 2018

Euro J Lipid Sci & Tech

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The impact of the extraction technique and genotype on the oil yield and profile/concentration of fatty acids, tocopherols, sterols, and squalene in oil obtained from the seeds of three Japanese quince (Chaenomeles japonica) cultivars (“Rondo,” “Darius,” and “Rasa”) are studied. The oil recovery from Japanese quince seeds is affected by two factors; extraction technique, and genotype. The lowest oil recovery is recorded for the cold‐press method and cv. “Rondo,” and the highest for ultrasonic extractions and cv. “Rasa.” The profile of fatty acids in Japanese quince seed oil is dominated by three fatty acids C18:2, C18:1, and C16:0. The extraction method does not impact fatty acid and tocopherol composition as well as squalene content, as opposed to genotype, which has a statistically significant impact. The composition of tocopherols in the Japanese quince seed oil is dominated by the α‐T (97%), while the β‐T and γ‐T constituted only minor level (below 2% of each). The extraction type and genotype have a significant impact on the composition of the most of sterols. Regardless of the type of extraction and genotype, the β‐sitosterol consists of over 80% of total sterols in Japanese quince seed oil. The plant genotype is the key factor, which determines the profile of the fatty acids and the concentration of bioactive compounds in the extracted oil from Japanese quince seed, while the extraction technique plays a secondary role. Practical Applications: The agro‐industrial by‐products generated by the fruit industry, for example, seeds, continue to rise year to year. One of the more popular processed fruit crop is Japanese quince (Chaenomeles japonica). This study demonstrates the impact of the extraction technique (four methods of extractions: cold‐pressing, supercritical CO2 fluid, ultrasound‐assisted, and Soxhlet) and genotype (three cultivars “Rondo,” “Darius,” and “Rasa”) on oil yield, fatty acid profile, and concentration of tocopherols, sterols, and squalene. Provided information can help with more efficient utilization of the tonnes of seeds generated by the fruit industry and consequently contributing to the more effective use of harvested plant material as well as health, economic, and environmental benefits. The impact of the extraction technique and genotype on the oil yield and profile/concentration of fatty acids, tocopherols, sterols and squalene in oil obtained from the seeds of three Japanese quince (Chaenomeles japonica) cultivars (“Rondo,” “Darius,” and “Rasa”) are studied. The plant genotype is the key factor which determines the profile of the fatty acids and the concentration of bioactive compounds in the extracted oil from Japanese quince seed, while the extraction technique plays a secondary role.

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“…The plasma membrane performs crucial roles in response to low temperature stress, and lipids are the major component of the plasma membrane (D'Angeli & Altamura, 2016).…”

Section: Roles Of Lipid Metabolism In Response To Cold Stressmentioning

confidence: 99%

“…The signal transduction pathway makes great contributions in response to various environmental stresses, including cold stress (Janska et al, 2010;D'Angeli & Altamura, 2016;Tanou et al, 2017). As an important messenger, Ca 2+ plays a crucial role in stress signaling (Ye et al, 2013).…”

Section: Signal Transduction In Response To Cold Stressmentioning

confidence: 99%

Characterization of cold stress responses in different rapeseed ecotypes based on metabolomics and transcriptomics analyses

Jian¹,

Xie²,

Wang³

et al. 2020

PeerJ

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The winter oilseed ecotype is more tolerant to low temperature than the spring ecotype. Transcriptome and metabolome analyses of leaf samples of five spring Brassica napus L. (B. napus) ecotype lines and five winter B. napus ecotype lines treated at 4 °C and 28 °C were performed. A total of 25,460 differentially expressed genes (DEGs) of the spring oilseed ecotype and 28,512 DEGs of the winter oilseed ecotype were identified after cold stress; there were 41 differentially expressed metabolites (DEMs) in the spring and 47 in the winter oilseed ecotypes. Moreover, more than 46.2% DEGs were commonly detected in both ecotypes, and the extent of the changes were much more pronounced in the winter than spring ecotype. By contrast, only six DEMs were detected in both the spring and winter oilseed ecotypes. Eighty-one DEMs mainly belonged to primary metabolites, including amino acids, organic acids and sugars. The large number of specific genes and metabolites emphasizes the complex regulatory mechanisms involved in the cold stress response in oilseed rape. Furthermore, these data suggest that lipid, ABA, secondary metabolism, signal transduction and transcription factors may play distinct roles in the spring and winter ecotypes in response to cold stress. Differences in gene expression and metabolite levels after cold stress treatment may have contributed to the cold tolerance of the different oilseed ecotypes.

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Unsaturated Lipids Change in Olive Tree Drupe and Seed during Fruit Development and in Response to Cold-Stress and Acclimation

Cited by 33 publications

References 59 publications

Effects of Chilling on the Structure, Function and Development of Chloroplasts

Effects of Chilling on the Structure, Function and Development of Chloroplasts

Impact of the Extraction Technique and Genotype on the Oil Yield and Composition of Lipophilic Compounds in the Oil Recovered from Japanese Quince (Chaenomeles japonica) Seeds

Characterization of cold stress responses in different rapeseed ecotypes based on metabolomics and transcriptomics analyses

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