Greening under High Light or Cold Temperature Affects the Level of Xanthophyll-Cycle Pigments, Early Light-Inducible Proteins, and Light-Harvesting Polypeptides in Wild-Type Barley and the Chlorina f2 Mutant. Król, M., Ivanov, A. G., Jansson, S., Kloppstech, K., & Huner, N. P. Plant Physiology, 120(1):193–204, May, 1999. ![Greening under High Light or Cold Temperature Affects the Level of Xanthophyll-Cycle Pigments, Early Light-Inducible Proteins, and Light-Harvesting Polypeptides in Wild-Type Barley and the Chlorina f2 Mutant [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex Etiolated seedlings of wild type and the chlorina f2 mutant of barley (Hordeum vulgare) were exposed to greening at either 5°C or 20°C and continuous illumination varying from 50 to 800 μmol m−2 s−1. Exposure to either moderate temperature and high light or low temperature and moderate light inhibited chlorophyll a and b accumulation in the wild type and in the f2 mutant. Continuous illumination under these greening conditions resulted in transient accumulations of zeaxanthin, concomitant transient decreases in violaxanthin, and fluctuations in the epoxidation state of the xanthophyll pool. Photoinhibition-induced xanthophyll-cycle activity was detectable after only 3 h of greening at 20°C and 250 μmol m−2 s−1. Immunoblot analyses of the accumulation of the 14-kD early light-inducible protein but not the major (Lhcb2) or minor (Lhcb5) light-harvesting polypeptides demonstrated transient kinetics similar to those observed for zeaxanthin accumulation during greening at either 5°C or 20°C for both the wild type and the f2 mutant. Furthermore, greening of the f2 mutant at either 5°C or 20°C indicated that Lhcb2 is not essential for the regulation of the xanthophyll cycle in barley. These results are consistent with the thesis that early light-inducible proteins may bind zeaxanthin as well as other xanthophylls and dissipate excess light energy to protect the developing photosynthetic apparatus from excess excitation. We discuss the role of energy balance and photosystem II excitation pressure in the regulation of the xanthophyll cycle during chloroplast biogenesis in wild-type barley and the f2 mutant.
@article{krol_greening_1999,
title = {Greening under {High} {Light} or {Cold} {Temperature} {Affects} the {Level} of {Xanthophyll}-{Cycle} {Pigments}, {Early} {Light}-{Inducible} {Proteins}, and {Light}-{Harvesting} {Polypeptides} in {Wild}-{Type} {Barley} and the {Chlorina} f2 {Mutant}},
volume = {120},
issn = {0032-0889},
url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC59251/},
abstract = {Etiolated seedlings of wild type and
the chlorina f2 mutant of barley (Hordeum
vulgare) were exposed to greening at either 5°C or 20°C and
continuous illumination varying from 50 to 800 μmol m−2
s−1. Exposure to either moderate temperature and high
light or low temperature and moderate light inhibited chlorophyll
a and b accumulation in the wild type and
in the f2 mutant. Continuous illumination under these
greening conditions resulted in transient accumulations of zeaxanthin,
concomitant transient decreases in violaxanthin, and fluctuations in
the epoxidation state of the xanthophyll pool. Photoinhibition-induced
xanthophyll-cycle activity was detectable after only 3 h of
greening at 20°C and 250 μmol m−2 s−1.
Immunoblot analyses of the accumulation of the 14-kD early
light-inducible protein but not the major (Lhcb2) or minor (Lhcb5)
light-harvesting polypeptides demonstrated transient kinetics similar
to those observed for zeaxanthin accumulation during greening at either
5°C or 20°C for both the wild type and the f2
mutant. Furthermore, greening of the f2 mutant at either
5°C or 20°C indicated that Lhcb2 is not essential for the
regulation of the xanthophyll cycle in barley. These results are
consistent with the thesis that early light-inducible proteins may bind
zeaxanthin as well as other xanthophylls and dissipate excess light
energy to protect the developing photosynthetic apparatus from excess
excitation. We discuss the role of energy balance and photosystem II
excitation pressure in the regulation of the xanthophyll cycle during
chloroplast biogenesis in wild-type barley and the f2
mutant.},
number = {1},
urldate = {2021-11-08},
journal = {Plant Physiology},
author = {Król, Marianna and Ivanov, Alexander G. and Jansson, Stefan and Kloppstech, Klaus and Huner, Norman P.A.},
month = may,
year = {1999},
pmid = {10318697},
pmcid = {PMC59251},
pages = {193--204},
}
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Exposure to either moderate temperature and high light or low temperature and moderate light inhibited chlorophyll a and b accumulation in the wild type and in the f2 mutant. Continuous illumination under these greening conditions resulted in transient accumulations of zeaxanthin, concomitant transient decreases in violaxanthin, and fluctuations in the epoxidation state of the xanthophyll pool. Photoinhibition-induced xanthophyll-cycle activity was detectable after only 3 h of greening at 20°C and 250 μmol m−2 s−1. Immunoblot analyses of the accumulation of the 14-kD early light-inducible protein but not the major (Lhcb2) or minor (Lhcb5) light-harvesting polypeptides demonstrated transient kinetics similar to those observed for zeaxanthin accumulation during greening at either 5°C or 20°C for both the wild type and the f2 mutant. Furthermore, greening of the f2 mutant at either 5°C or 20°C indicated that Lhcb2 is not essential for the regulation of the xanthophyll cycle in barley. These results are consistent with the thesis that early light-inducible proteins may bind zeaxanthin as well as other xanthophylls and dissipate excess light energy to protect the developing photosynthetic apparatus from excess excitation. We discuss the role of energy balance and photosystem II excitation pressure in the regulation of the xanthophyll cycle during chloroplast biogenesis in wild-type barley and the f2 mutant.","number":"1","urldate":"2021-11-08","journal":"Plant Physiology","author":[{"propositions":[],"lastnames":["Król"],"firstnames":["Marianna"],"suffixes":[]},{"propositions":[],"lastnames":["Ivanov"],"firstnames":["Alexander","G."],"suffixes":[]},{"propositions":[],"lastnames":["Jansson"],"firstnames":["Stefan"],"suffixes":[]},{"propositions":[],"lastnames":["Kloppstech"],"firstnames":["Klaus"],"suffixes":[]},{"propositions":[],"lastnames":["Huner"],"firstnames":["Norman","P.A."],"suffixes":[]}],"month":"May","year":"1999","pmid":"10318697","pmcid":"PMC59251","pages":"193–204","bibtex":"@article{krol_greening_1999,\n\ttitle = {Greening under {High} {Light} or {Cold} {Temperature} {Affects} the {Level} of {Xanthophyll}-{Cycle} {Pigments}, {Early} {Light}-{Inducible} {Proteins}, and {Light}-{Harvesting} {Polypeptides} in {Wild}-{Type} {Barley} and the {Chlorina} f2 {Mutant}},\n\tvolume = {120},\n\tissn = {0032-0889},\n\turl = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC59251/},\n\tabstract = {Etiolated seedlings of wild type and\n the chlorina f2 mutant of barley (Hordeum\n vulgare) were exposed to greening at either 5°C or 20°C and\n continuous illumination varying from 50 to 800 μmol m−2\n s−1. Exposure to either moderate temperature and high\n light or low temperature and moderate light inhibited chlorophyll\n a and b accumulation in the wild type and\n in the f2 mutant. Continuous illumination under these\n greening conditions resulted in transient accumulations of zeaxanthin,\n concomitant transient decreases in violaxanthin, and fluctuations in\n the epoxidation state of the xanthophyll pool. Photoinhibition-induced\n xanthophyll-cycle activity was detectable after only 3 h of\n greening at 20°C and 250 μmol m−2 s−1.\n Immunoblot analyses of the accumulation of the 14-kD early\n light-inducible protein but not the major (Lhcb2) or minor (Lhcb5)\n light-harvesting polypeptides demonstrated transient kinetics similar\n to those observed for zeaxanthin accumulation during greening at either\n 5°C or 20°C for both the wild type and the f2\n mutant. Furthermore, greening of the f2 mutant at either\n 5°C or 20°C indicated that Lhcb2 is not essential for the\n regulation of the xanthophyll cycle in barley. These results are\n consistent with the thesis that early light-inducible proteins may bind\n zeaxanthin as well as other xanthophylls and dissipate excess light\n energy to protect the developing photosynthetic apparatus from excess\n excitation. We discuss the role of energy balance and photosystem II\n excitation pressure in the regulation of the xanthophyll cycle during\n chloroplast biogenesis in wild-type barley and the f2\n mutant.},\n\tnumber = {1},\n\turldate = {2021-11-08},\n\tjournal = {Plant Physiology},\n\tauthor = {Król, Marianna and Ivanov, Alexander G. and Jansson, Stefan and Kloppstech, Klaus and Huner, Norman P.A.},\n\tmonth = may,\n\tyear = {1999},\n\tpmid = {10318697},\n\tpmcid = {PMC59251},\n\tpages = {193--204},\n}\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n","author_short":["Król, M.","Ivanov, A. 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