Reutilization of arachidonyl moieties of triacylglycerols in the microalga Parietochloris incisa following recovery from nitrogen starvation

P Shrestha; I Khozin-Goldberg; Zvi Hacohen

doi:10.1007/978-94-017-0159-4_36

Reutilization of arachidonyl moieties of triacylglycerols in the microalga Parietochloris incisa following recovery from nitrogen starvation

P Shrestha, I Khozin-Goldberg, Zvi Hacohen

The French Associates Institute for Agriculture and Biotechnology of Drylands

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

We have recently shown that the freshwater alga Parietochloris incisa (Chlorophyceae) is unique in its ability to accumulate triacylglycerols (TAG), rich in arachidonic acid (AA, 20:4ω6). Under nitrogen starvation conditions, TAG accounted for 90% of total acyl lipids and AA constituted up to 50–60% of the fatty acids of TAG (Bigogno et al., 2002). We have previously proposed that polyunsaturated (PUFA)-rich TAG may have a role as a depot of PUFAs that can be mobilized for the construction of chloroplastic membranes under certain environmental conditions (Bigogno et al., 2002; Khozin-Goldberg et al., 2000). In the present work, in an attempt to unravel the role of AA-rich TAG, other than its use as a source of energy, the changes in fatty acid compositions of both neutral lipids and polar lipids were studied during recovery from nitrogen starvation at 24 °C and 12 °C.

Original language	English
Title of host publication	Advanced Research on Plant Lipids
Editors	N. Murata, M. Yamada, I. Nishida, H. Okuyama, J. Sekiya, W. Hajime
Publisher	Springer, Dordrecht
Pages	159-162
ISBN (Electronic)	9789401701594
ISBN (Print)	9781402011054, 9789048162109
DOIs	https://doi.org/10.1007/978-94-017-0159-4_36
State	Published - Feb 2003

Keywords

Fatty Acid Composition
Molecular Species
Lipid Body
Nitrogen Starvation
Total Fatty Acid Content

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10.1007/978-94-017-0159-4_36

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Shrestha, P., Khozin-Goldberg, I., & Hacohen, Z. (2003). Reutilization of arachidonyl moieties of triacylglycerols in the microalga Parietochloris incisa following recovery from nitrogen starvation. In N. Murata, M. Yamada, I. Nishida, H. Okuyama, J. Sekiya, & W. Hajime (Eds.), Advanced Research on Plant Lipids (pp. 159-162). Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0159-4_36

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title = "Reutilization of arachidonyl moieties of triacylglycerols in the microalga Parietochloris incisa following recovery from nitrogen starvation",

abstract = "We have recently shown that the freshwater alga Parietochloris incisa (Chlorophyceae) is unique in its ability to accumulate triacylglycerols (TAG), rich in arachidonic acid (AA, 20:4ω6). Under nitrogen starvation conditions, TAG accounted for 90% of total acyl lipids and AA constituted up to 50–60% of the fatty acids of TAG (Bigogno et al., 2002). We have previously proposed that polyunsaturated (PUFA)-rich TAG may have a role as a depot of PUFAs that can be mobilized for the construction of chloroplastic membranes under certain environmental conditions (Bigogno et al., 2002; Khozin-Goldberg et al., 2000). In the present work, in an attempt to unravel the role of AA-rich TAG, other than its use as a source of energy, the changes in fatty acid compositions of both neutral lipids and polar lipids were studied during recovery from nitrogen starvation at 24 °C and 12 °C.",

keywords = "Fatty Acid Composition, Molecular Species, Lipid Body, Nitrogen Starvation, Total Fatty Acid Content",

author = "P Shrestha and I Khozin-Goldberg and Zvi Hacohen",

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doi = "10.1007/978-94-017-0159-4_36",

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Shrestha, P, Khozin-Goldberg, I & Hacohen, Z 2003, Reutilization of arachidonyl moieties of triacylglycerols in the microalga Parietochloris incisa following recovery from nitrogen starvation. in N Murata, M Yamada, I Nishida, H Okuyama, J Sekiya & W Hajime (eds), Advanced Research on Plant Lipids. Springer, Dordrecht, pp. 159-162. https://doi.org/10.1007/978-94-017-0159-4_36

Reutilization of arachidonyl moieties of triacylglycerols in the microalga Parietochloris incisa following recovery from nitrogen starvation. / Shrestha, P; Khozin-Goldberg, I ; Hacohen, Zvi.
Advanced Research on Plant Lipids. ed. / N. Murata; M. Yamada; I. Nishida; H. Okuyama; J. Sekiya; W. Hajime. Springer, Dordrecht, 2003. p. 159-162.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

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T1 - Reutilization of arachidonyl moieties of triacylglycerols in the microalga Parietochloris incisa following recovery from nitrogen starvation

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AB - We have recently shown that the freshwater alga Parietochloris incisa (Chlorophyceae) is unique in its ability to accumulate triacylglycerols (TAG), rich in arachidonic acid (AA, 20:4ω6). Under nitrogen starvation conditions, TAG accounted for 90% of total acyl lipids and AA constituted up to 50–60% of the fatty acids of TAG (Bigogno et al., 2002). We have previously proposed that polyunsaturated (PUFA)-rich TAG may have a role as a depot of PUFAs that can be mobilized for the construction of chloroplastic membranes under certain environmental conditions (Bigogno et al., 2002; Khozin-Goldberg et al., 2000). In the present work, in an attempt to unravel the role of AA-rich TAG, other than its use as a source of energy, the changes in fatty acid compositions of both neutral lipids and polar lipids were studied during recovery from nitrogen starvation at 24 °C and 12 °C.

KW - Fatty Acid Composition

KW - Molecular Species

KW - Lipid Body

KW - Nitrogen Starvation

KW - Total Fatty Acid Content

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SN - 9789048162109

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BT - Advanced Research on Plant Lipids

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A2 - Hajime, W.

PB - Springer, Dordrecht

ER -

Reutilization of arachidonyl moieties of triacylglycerols in the microalga Parietochloris incisa following recovery from nitrogen starvation

Abstract

Keywords

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