Molecular and genetic analysis of anthranilate synthase in Arabidopsis thaliana (1993)
Niyogi, Krishna K. (Krishna Kumar)
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1993.
Molecular and genetic analysis of anthranilate synthase in Arabidopsis thaliana (1993)
Niyogi, Krishna K. (Krishna Kumar)
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1993.
The violaxanthin cycle protects plants from photooxidative damage by more than one mechanism
Havaux, Michel, Niyogi, Krishna K.
When light energy absorbed by plants becomes excessive relative to the capacity of photosynthesis, the xanthophyll violaxanthin is reversibly deepoxidized to zeaxanthin (violaxanthin cycle). The...
Pogson, Barry J., Niyogi, Krishna K., Björkman, Olle, DellaPenna, Dean
Collectively, the xanthophyll class of carotenoids perform a variety of critical roles in light harvesting antenna assembly and function. The xanthophyll composition of higher plant photosystems...
The roles of specific xanthophylls in photoprotection
Niyogi, Krishna K., Björkman, Olle, Grossman, Arthur R.
Xanthophyll pigments have critical structural and functional roles in the photosynthetic light-harvesting complexes of algae and vascular plants. Genetic dissection of xanthophyll metabolism in the...
Havaux, Michel, Bonfils, Jean-Paul, Lütz, Cornelius, Niyogi, Krishna K.
The npq1 Arabidopsis mutant is deficient in the violaxanthin de-epoxidase enzyme that converts violaxanthin to zeaxanthin in excess light (xanthophyll cycle). We have compared the behavior of mature...
Rhesus expression in a green alga is regulated by CO2
Soupene, Eric, King, Natalie, Feild, Eithne, Liu, Phillip, Niyogi, Krishna K., Huang, Cheng-Han, ...
The function of the Rhesus (Rh) complex in the human red cell membrane has been unknown for six decades. Based on the organismal, organ, and tissue distribution of Rh proteins, and on our evidence...
PsbS-dependent enhancement of feedback de-excitation protects photosystem II from photoinhibition
Li, Xiao-Ping, Müller-Moulé, Patricia, Gilmore, Adam M., Niyogi, Krishna K.
Feedback de-excitation (qE) regulates light harvesting in plants to prevent inhibition of photosynthesis when light absorption exceeds photosynthetic capacity. Although the mechanism of qE is not...
A Major Light-Harvesting Polypeptide of Photosystem II Functions in Thermal DissipationW⃞
Elrad, Dafna, Niyogi, Krishna K., Grossman, Arthur R.
Under high-light conditions, photoprotective mechanisms minimize the damaging effects of excess light. A primary photoprotective mechanism is thermal dissipation of excess excitation energy within...
Ascorbate Deficiency Can Limit Violaxanthin De-Epoxidase Activity in Vivo1
Müller-Moulé, Patricia, Conklin, Patricia L., Niyogi, Krishna K.
As a response to high light, plants have evolved non-photochemical quenching (NPQ), mechanisms that lead to the dissipation of excess absorbed light energy as heat, thereby minimizing the formation...
Baroli, Irene, Do, An D., Yamane, Tomoko, Niyogi, Krishna K.
Xanthophylls participate in light harvesting and are essential in protecting the chloroplast from photooxidative damage. To investigate the roles of xanthophylls in photoprotection, we isolated and...
PAA1, a P-Type ATPase of Arabidopsis, Functions in Copper Transport in Chloroplasts
Shikanai, Toshiharu, Müller-Moulé, Patricia, Munekage, Yuri, Niyogi, Krishna K., Pilon, Marinus
Copper (Cu) is an essential trace element with important roles as a cofactor in many plant functions, including photosynthesis. However, free Cu ions can cause toxicity, necessitating precise Cu...
Müller-Moulé, Patricia, Havaux, Michel, Niyogi, Krishna K.
The ascorbate content of plants is usually increased in high light (HL), implying a function for ascorbate in the acclimation of plants to HL. Nevertheless, the importance of ascorbate in HL...
Ascorbate-Deficient Mutants of Arabidopsis Grow in High Light Despite Chronic Photooxidative Stress1
Müller-Moulé, Patricia, Golan, Talila, Niyogi, Krishna K.
Acclimation to changing environments, such as increases in light intensity, is necessary, especially for the survival of sedentary organisms like plants. To learn more about the importance of...
Chlamydomonas and Arabidopsis. A Dynamic Duo1
Gutman, Benjamin L., Niyogi, Krishna K.
A translational biology perspective on Chlamydomonas and Arabidopsis might be expected to focus on those genes, cellular components, or biological processes found first in Chlamydomonas and...
Dent, Rachel M., Haglund, Cat M., Chin, Brian L., Kobayashi, Marilyn C., Niyogi, Krishna K.
The unicellular green alga Chlamydomonas reinhardtii is a widely used model organism for studies of oxygenic photosynthesis in eukaryotes. Here we describe the development of a resource for...
Evidence for direct carotenoid involvement in the regulation of photosynthetic light harvesting
Ma, Ying-Zhong, Holt, Nancy E., Li, Xiao-Ping, Niyogi, Krishna K., Fleming, Graham R.
Nonphotochemical quenching (NPQ) refers to a process that regulates photosynthetic light harvesting in plants as a response to changes in incident light intensity. By dissipating excess excitation...
Two P-Type ATPases Are Required for Copper Delivery in Arabidopsis thaliana Chloroplasts
Abdel-Ghany, Salah E., Müller-Moulé, Patricia, Niyogi, Krishna K., Pilon, Marinus, Shikanai, Toshiharu
Copper delivery to the thylakoid lumen protein plastocyanin and the stromal enzyme Cu/Zn superoxide dismutase in chloroplasts is required for photosynthesis and oxidative stress protection. The...
White Mutants of Chlamydomonas reinhardtii Are Defective in Phytoene Synthase
McCarthy, Sarah S., Kobayashi, Marilyn C., Niyogi, Krishna K.
Carotenoids play an integral and essential role in photosynthesis and photoprotection in plants and algae. A collection of Chlamydomonas reinhardtii mutants lacking carotenoids was characterized for...
The violaxanthin cycle protects plants from photooxidative damage by more than one mechanism
Havaux, Michel, Niyogi, Krishna K.
When light energy absorbed by plants becomes excessive relative to the capacity of photosynthesis, the xanthophyll violaxanthin is reversibly deepoxidized to zeaxanthin (violaxanthin cycle). The...
Pogson, Barry J., Niyogi, Krishna K., Björkman, Olle, DellaPenna, Dean
Collectively, the xanthophyll class of carotenoids perform a variety of critical roles in light harvesting antenna assembly and function. The xanthophyll composition of higher plant photosystems...
The roles of specific xanthophylls in photoprotection
Niyogi, Krishna K., Björkman, Olle, Grossman, Arthur R.
Xanthophyll pigments have critical structural and functional roles in the photosynthetic light-harvesting complexes of algae and vascular plants. Genetic dissection of xanthophyll metabolism in the...
Havaux, Michel, Bonfils, Jean-Paul, Lütz, Cornelius, Niyogi, Krishna K.
The npq1 Arabidopsis mutant is deficient in the violaxanthin de-epoxidase enzyme that converts violaxanthin to zeaxanthin in excess light (xanthophyll cycle). We have compared the behavior of mature...
Rhesus expression in a green alga is regulated by CO2
Soupene, Eric, King, Natalie, Feild, Eithne, Liu, Phillip, Niyogi, Krishna K., Huang, Cheng-Han, ...
The function of the Rhesus (Rh) complex in the human red cell membrane has been unknown for six decades. Based on the organismal, organ, and tissue distribution of Rh proteins, and on our evidence...
PsbS-dependent enhancement of feedback de-excitation protects photosystem II from photoinhibition
Li, Xiao-Ping, Müller-Moulé, Patricia, Gilmore, Adam M., Niyogi, Krishna K.
Feedback de-excitation (qE) regulates light harvesting in plants to prevent inhibition of photosynthesis when light absorption exceeds photosynthetic capacity. Although the mechanism of qE is not...
A Major Light-Harvesting Polypeptide of Photosystem II Functions in Thermal DissipationW⃞
Elrad, Dafna, Niyogi, Krishna K., Grossman, Arthur R.
Under high-light conditions, photoprotective mechanisms minimize the damaging effects of excess light. A primary photoprotective mechanism is thermal dissipation of excess excitation energy within...
Ascorbate Deficiency Can Limit Violaxanthin De-Epoxidase Activity in Vivo1
Müller-Moulé, Patricia, Conklin, Patricia L., Niyogi, Krishna K.
As a response to high light, plants have evolved non-photochemical quenching (NPQ), mechanisms that lead to the dissipation of excess absorbed light energy as heat, thereby minimizing the formation...
Baroli, Irene, Do, An D., Yamane, Tomoko, Niyogi, Krishna K.
Xanthophylls participate in light harvesting and are essential in protecting the chloroplast from photooxidative damage. To investigate the roles of xanthophylls in photoprotection, we isolated and...
PAA1, a P-Type ATPase of Arabidopsis, Functions in Copper Transport in Chloroplasts
Shikanai, Toshiharu, Müller-Moulé, Patricia, Munekage, Yuri, Niyogi, Krishna K., Pilon, Marinus
Copper (Cu) is an essential trace element with important roles as a cofactor in many plant functions, including photosynthesis. However, free Cu ions can cause toxicity, necessitating precise Cu...
Müller-Moulé, Patricia, Havaux, Michel, Niyogi, Krishna K.
The ascorbate content of plants is usually increased in high light (HL), implying a function for ascorbate in the acclimation of plants to HL. Nevertheless, the importance of ascorbate in HL...
Ascorbate-Deficient Mutants of Arabidopsis Grow in High Light Despite Chronic Photooxidative Stress1
Müller-Moulé, Patricia, Golan, Talila, Niyogi, Krishna K.
Acclimation to changing environments, such as increases in light intensity, is necessary, especially for the survival of sedentary organisms like plants. To learn more about the importance of...
Evidence for direct carotenoid involvement in the regulation of photosynthetic light harvesting
Ma, Ying-Zhong, Holt, Nancy E., Li, Xiao-Ping, Niyogi, Krishna K., Fleming, Graham R.
Nonphotochemical quenching (NPQ) refers to a process that regulates photosynthetic light harvesting in plants as a response to changes in incident light intensity. By dissipating excess excitation...
Chlamydomonas and Arabidopsis. A Dynamic Duo1
Gutman, Benjamin L., Niyogi, Krishna K.
A translational biology perspective on Chlamydomonas and Arabidopsis might be expected to focus on those genes, cellular components, or biological processes found first in Chlamydomonas and...
Dent, Rachel M., Haglund, Cat M., Chin, Brian L., Kobayashi, Marilyn C., Niyogi, Krishna K.
The unicellular green alga Chlamydomonas reinhardtii is a widely used model organism for studies of oxygenic photosynthesis in eukaryotes. Here we describe the development of a resource for...
Two P-Type ATPases Are Required for Copper Delivery in Arabidopsis thaliana Chloroplasts
Abdel-Ghany, Salah E., Müller-Moulé, Patricia, Niyogi, Krishna K., Pilon, Marinus, Shikanai, Toshiharu
Copper delivery to the thylakoid lumen protein plastocyanin and the stromal enzyme Cu/Zn superoxide dismutase in chloroplasts is required for photosynthesis and oxidative stress protection. The...
White Mutants of Chlamydomonas reinhardtii Are Defective in Phytoene Synthase
McCarthy, Sarah S., Kobayashi, Marilyn C., Niyogi, Krishna K.
Carotenoids play an integral and essential role in photosynthesis and photoprotection in plants and algae. A collection of Chlamydomonas reinhardtii mutants lacking carotenoids was characterized for...
Shao, Ning, Vallon, Olivier, Dent, Rachel, Niyogi, Krishna K., Beck, Christoph F.
Mutants with defects in the cytochrome (cyt) b6/f complex were analyzed for their effect on the expression of a subgroup of nuclear genes encoding plastid-localized enzymes participating in...
Acclimation to Singlet Oxygen Stress in Chlamydomonas reinhardtii▿
Ledford, Heidi K., Chin, Brian L., Niyogi, Krishna K.
In an aerobic environment, responding to oxidative cues is critical for physiological adaptation (acclimation) to changing environmental conditions. The unicellular alga Chlamydomonas reinhardtii was...