Glycollate oxidase inhibition and its effect on photosynthesis and pigment formation in Zea mays

C. L.D. Jenkins; L. J. Rogers; M. W. Kerr

doi:10.1016/0031-9422(82)83003-3

Glycollate oxidase inhibition and its effect on photosynthesis and pigment formation in Zea mays

C. L.D. Jenkins, L. J. Rogers, M. W. Kerr

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5 Citations (Scopus)

Abstract

We have investigated the effect of 2-hydroxy-3-butynoic acid (HBA) and its methyl ester (MeHBA) on photosynthesis and pigment formation in Zea mays, a C₄ photosynthesis-type plant. In the presence of the specific inhibitor of glycollate oxidase, assimilation of CO₂ was decreased significantly. Labelling patterns showed accumulation of glycollate, though not so marked as in C₃ photosynthesis-type plants, and marked decreases in incorporation into glycine, serine and particularly glycerate. This inhibition was specific for the S(+) enantiomers of HBA and MeHBA. In greening maize R,S-MeHBA inhibited formation of chloroplast pigments and this effect could be shown to be due to the S(+) enantiomer; of a range of metabolises tested only supplementations with serine or pyruvate were partly effective in restoring greening.

Original language	English
Pages (from-to)	1859-1863
Number of pages	5
Journal	Phytochemistry
Volume	21
Issue number	8
DOIs	https://doi.org/10.1016/0031-9422(82)83003-3
Publication status	Published - 1982
Externally published	Yes

Keywords

2-hydroxy-3-butynoic acid
glycollate oxidase
Gramineae
greening.
maize
photorespiration
photosynthesis
pigment formation
Zea mays

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title = "Glycollate oxidase inhibition and its effect on photosynthesis and pigment formation in Zea mays",

abstract = "We have investigated the effect of 2-hydroxy-3-butynoic acid (HBA) and its methyl ester (MeHBA) on photosynthesis and pigment formation in Zea mays, a C4 photosynthesis-type plant. In the presence of the specific inhibitor of glycollate oxidase, assimilation of CO2 was decreased significantly. Labelling patterns showed accumulation of glycollate, though not so marked as in C3 photosynthesis-type plants, and marked decreases in incorporation into glycine, serine and particularly glycerate. This inhibition was specific for the S(+) enantiomers of HBA and MeHBA. In greening maize R,S-MeHBA inhibited formation of chloroplast pigments and this effect could be shown to be due to the S(+) enantiomer; of a range of metabolises tested only supplementations with serine or pyruvate were partly effective in restoring greening.",

keywords = "2-hydroxy-3-butynoic acid, glycollate oxidase, Gramineae, greening., maize, photorespiration, photosynthesis, pigment formation, Zea mays",

author = "Jenkins, {C. L.D.} and Rogers, {L. J.} and Kerr, {M. W.}",

year = "1982",

doi = "10.1016/0031-9422(82)83003-3",

language = "English",

volume = "21",

pages = "1859--1863",

journal = "Phytochemistry",

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number = "8",

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TY - JOUR

T1 - Glycollate oxidase inhibition and its effect on photosynthesis and pigment formation in Zea mays

AU - Jenkins, C. L.D.

AU - Rogers, L. J.

AU - Kerr, M. W.

PY - 1982

Y1 - 1982

N2 - We have investigated the effect of 2-hydroxy-3-butynoic acid (HBA) and its methyl ester (MeHBA) on photosynthesis and pigment formation in Zea mays, a C4 photosynthesis-type plant. In the presence of the specific inhibitor of glycollate oxidase, assimilation of CO2 was decreased significantly. Labelling patterns showed accumulation of glycollate, though not so marked as in C3 photosynthesis-type plants, and marked decreases in incorporation into glycine, serine and particularly glycerate. This inhibition was specific for the S(+) enantiomers of HBA and MeHBA. In greening maize R,S-MeHBA inhibited formation of chloroplast pigments and this effect could be shown to be due to the S(+) enantiomer; of a range of metabolises tested only supplementations with serine or pyruvate were partly effective in restoring greening.

AB - We have investigated the effect of 2-hydroxy-3-butynoic acid (HBA) and its methyl ester (MeHBA) on photosynthesis and pigment formation in Zea mays, a C4 photosynthesis-type plant. In the presence of the specific inhibitor of glycollate oxidase, assimilation of CO2 was decreased significantly. Labelling patterns showed accumulation of glycollate, though not so marked as in C3 photosynthesis-type plants, and marked decreases in incorporation into glycine, serine and particularly glycerate. This inhibition was specific for the S(+) enantiomers of HBA and MeHBA. In greening maize R,S-MeHBA inhibited formation of chloroplast pigments and this effect could be shown to be due to the S(+) enantiomer; of a range of metabolises tested only supplementations with serine or pyruvate were partly effective in restoring greening.

KW - 2-hydroxy-3-butynoic acid

KW - glycollate oxidase

KW - Gramineae

KW - greening.

KW - maize

KW - photorespiration

KW - photosynthesis

KW - pigment formation

KW - Zea mays

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U2 - 10.1016/0031-9422(82)83003-3

DO - 10.1016/0031-9422(82)83003-3

M3 - Article

AN - SCOPUS:49049132959

SN - 0031-9422

VL - 21

SP - 1859

EP - 1863

JO - Phytochemistry

JF - Phytochemistry

IS - 8

ER -

Glycollate oxidase inhibition and its effect on photosynthesis and pigment formation in Zea mays

Abstract

Keywords

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