In-vitro evidence for plant enzyme mediated lipolysis in the rumen

Michael R. F. Lee; Michael K. Theodorou; T. T. Chow; Nigel D. Scollan; M. Enser

doi:10.1017/S0029665102000277

In-vitro evidence for plant enzyme mediated lipolysis in the rumen

Michael R. F. Lee, Michael K. Theodorou, T. T. Chow, Nigel D. Scollan, M. Enser

Department of Life Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference Proceeding (Non-Journal item)

Abstract

It is generally accepted that microbial enzymes are involved in lipolysis and are thus responsible for
the destruction of plant membranes in the rumen. However, we question this assertion and tested the
hypothesis that in ruminants grazing fresh pastures, the first stages of lipolysis could be mediated by
plant lipases. These enzymes are ubiquitous in plants and their regulation might be altered as a
consequence of the dual stress of elevated temperature and anoxia imposed on the plant metabolism of
intact plant cells ingested by ruminants. If the hypothesis is proven, it might be possible to reduce the
rate and extent of lipolytic activity in the rumen by selectively breeding forage plants with reduced
lipolytic activity, with potential benefit to both the livestock producer and the consumer.

Original language	English
Title of host publication	Proceedings of the Nutrition Society
Publisher	The Nutrition Society
Pages	103A
Volume	61
DOIs	https://doi.org/10.1017/S0029665102000277
Publication status	Published - 2002
Event	Nutrition Society Scientific Meeting - Leeds, United Kingdom of Great Britain and Northern Ireland Duration: 02 Jul 2002 → 05 Jul 2002

Conference

Conference	Nutrition Society Scientific Meeting
Country/Territory	United Kingdom of Great Britain and Northern Ireland
City	Leeds
Period	02 Jul 2002 → 05 Jul 2002

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http://hdl.handle.net/2160/3851

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title = "In-vitro evidence for plant enzyme mediated lipolysis in the rumen",

abstract = "It is generally accepted that microbial enzymes are involved in lipolysis and are thus responsible forthe destruction of plant membranes in the rumen. However, we question this assertion and tested thehypothesis that in ruminants grazing fresh pastures, the first stages of lipolysis could be mediated byplant lipases. These enzymes are ubiquitous in plants and their regulation might be altered as aconsequence of the dual stress of elevated temperature and anoxia imposed on the plant metabolism ofintact plant cells ingested by ruminants. If the hypothesis is proven, it might be possible to reduce therate and extent of lipolytic activity in the rumen by selectively breeding forage plants with reducedlipolytic activity, with potential benefit to both the livestock producer and the consumer.",

author = "Lee, {Michael R. F.} and Theodorou, {Michael K.} and Chow, {T. T.} and Scollan, {Nigel D.} and M. Enser",

note = "Lee, M. R. F., Theodorou, M. K., Chow, T. T., Enser, M., Scollan, N. D. (2002). In-vitro evidence for plant enzyme mediated lipolysis in the rumen. Proceedings of the Nutrition Society, 61,(3a), 103A. Proceedings of the Nutrition Society Scientific Meeting, University of Leeds, Leeds, 2-5 July 2002, Goldberg, G. R. (ed).; Nutrition Society Scientific Meeting ; Conference date: 02-07-2002 Through 05-07-2002",

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doi = "10.1017/S0029665102000277",

language = "English",

volume = "61",

pages = "103A",

booktitle = "Proceedings of the Nutrition Society",

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TY - GEN

T1 - In-vitro evidence for plant enzyme mediated lipolysis in the rumen

AU - Lee, Michael R. F.

AU - Theodorou, Michael K.

AU - Chow, T. T.

AU - Scollan, Nigel D.

AU - Enser, M.

N1 - Lee, M. R. F., Theodorou, M. K., Chow, T. T., Enser, M., Scollan, N. D. (2002). In-vitro evidence for plant enzyme mediated lipolysis in the rumen. Proceedings of the Nutrition Society, 61,(3a), 103A. Proceedings of the Nutrition Society Scientific Meeting, University of Leeds, Leeds, 2-5 July 2002, Goldberg, G. R. (ed).

PY - 2002

Y1 - 2002

N2 - It is generally accepted that microbial enzymes are involved in lipolysis and are thus responsible forthe destruction of plant membranes in the rumen. However, we question this assertion and tested thehypothesis that in ruminants grazing fresh pastures, the first stages of lipolysis could be mediated byplant lipases. These enzymes are ubiquitous in plants and their regulation might be altered as aconsequence of the dual stress of elevated temperature and anoxia imposed on the plant metabolism ofintact plant cells ingested by ruminants. If the hypothesis is proven, it might be possible to reduce therate and extent of lipolytic activity in the rumen by selectively breeding forage plants with reducedlipolytic activity, with potential benefit to both the livestock producer and the consumer.

AB - It is generally accepted that microbial enzymes are involved in lipolysis and are thus responsible forthe destruction of plant membranes in the rumen. However, we question this assertion and tested thehypothesis that in ruminants grazing fresh pastures, the first stages of lipolysis could be mediated byplant lipases. These enzymes are ubiquitous in plants and their regulation might be altered as aconsequence of the dual stress of elevated temperature and anoxia imposed on the plant metabolism ofintact plant cells ingested by ruminants. If the hypothesis is proven, it might be possible to reduce therate and extent of lipolytic activity in the rumen by selectively breeding forage plants with reducedlipolytic activity, with potential benefit to both the livestock producer and the consumer.

U2 - 10.1017/S0029665102000277

DO - 10.1017/S0029665102000277

M3 - Conference Proceeding (Non-Journal item)

VL - 61

SP - 103A

BT - Proceedings of the Nutrition Society

PB - The Nutrition Society

T2 - Nutrition Society Scientific Meeting

Y2 - 2 July 2002 through 5 July 2002

ER -

In-vitro evidence for plant enzyme mediated lipolysis in the rumen

Abstract

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