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Photosynthetic responses of three C4 grasses of different metabolic subtypes to water deficit

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Photosynthetic responses of three C4 grasses of different metabolic subtypes to water deficit. / Carmo-Silva, Ana E.; Soares, Ana S.; Marques Da Silva, Jorge et al.
In: Functional Plant Biology, Vol. 34, No. 3, 28.03.2007, p. 204-213.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Carmo-Silva, AE, Soares, AS, Marques Da Silva, J, Bernardes Da Silva, A, Keys, AJ & Arrabaça, MC 2007, 'Photosynthetic responses of three C4 grasses of different metabolic subtypes to water deficit', Functional Plant Biology, vol. 34, no. 3, pp. 204-213. https://doi.org/10.1071/FP06278

APA

Carmo-Silva, A. E., Soares, A. S., Marques Da Silva, J., Bernardes Da Silva, A., Keys, A. J., & Arrabaça, M. C. (2007). Photosynthetic responses of three C4 grasses of different metabolic subtypes to water deficit. Functional Plant Biology, 34(3), 204-213. https://doi.org/10.1071/FP06278

Vancouver

Carmo-Silva AE, Soares AS, Marques Da Silva J, Bernardes Da Silva A, Keys AJ, Arrabaça MC. Photosynthetic responses of three C4 grasses of different metabolic subtypes to water deficit. Functional Plant Biology. 2007 Mar 28;34(3):204-213. doi: 10.1071/FP06278

Author

Carmo-Silva, Ana E. ; Soares, Ana S. ; Marques Da Silva, Jorge et al. / Photosynthetic responses of three C4 grasses of different metabolic subtypes to water deficit. In: Functional Plant Biology. 2007 ; Vol. 34, No. 3. pp. 204-213.

Bibtex

@article{51f9a079b46148b5a6f11d0213fbf580,
title = "Photosynthetic responses of three C4 grasses of different metabolic subtypes to water deficit",
abstract = "C4 plants are considered to be less sensitive to drought than C3 plants because of their CO2 concentrating mechanism. The C4 grasses, Paspalum dilatatum Poiret (NADP-ME), Cynodon dactylon (L.) Pers (NAD-ME) and Zoysia japonica Steudel (PEPCK) were compared in their response to water deficit imposed by the addition of polyethylene glycol to the nutrient solution in which they were grown. The effects of drought on leaf relative water content (RWC), net photosynthesis, stomatal conductance, carboxylating enzyme activities and chlorophyll a fluorescence were investigated. In C. dactylon the RWC was more sensitive, but the photosynthetic activity was less sensitive, to water deficit than in P. dilatatum and Z. japonica. The decrease of photosynthesis in P. dilatatum under water deficit was not closely related to the activities of the carboxylating enzymes or to chlorophyll a fluorescence. However, decreased activities of ribulose 1,5-bisphosphate carboxylase/oxygenase and phosphoenolpyruvate carboxylase, in addition to decreased stomatal conductance, may have contributed to the decrease of photosynthesis with drought in C. dactylon and Z. japonica. The different responses to water deficit are discussed in relation to the natural habitats of C4 grasses.",
keywords = "C plants, Drought, NAD-ME, NADP-ME, PEPCK",
author = "Carmo-Silva, {Ana E.} and Soares, {Ana S.} and {Marques Da Silva}, Jorge and {Bernardes Da Silva}, Anabela and Keys, {Alfred J.} and Arraba{\c c}a, {Maria Celeste}",
year = "2007",
month = mar,
day = "28",
doi = "10.1071/FP06278",
language = "English",
volume = "34",
pages = "204--213",
journal = "Functional Plant Biology",
issn = "1445-4408",
publisher = "CSIRO PUBLISHING",
number = "3",

}

RIS

TY - JOUR

T1 - Photosynthetic responses of three C4 grasses of different metabolic subtypes to water deficit

AU - Carmo-Silva, Ana E.

AU - Soares, Ana S.

AU - Marques Da Silva, Jorge

AU - Bernardes Da Silva, Anabela

AU - Keys, Alfred J.

AU - Arrabaça, Maria Celeste

PY - 2007/3/28

Y1 - 2007/3/28

N2 - C4 plants are considered to be less sensitive to drought than C3 plants because of their CO2 concentrating mechanism. The C4 grasses, Paspalum dilatatum Poiret (NADP-ME), Cynodon dactylon (L.) Pers (NAD-ME) and Zoysia japonica Steudel (PEPCK) were compared in their response to water deficit imposed by the addition of polyethylene glycol to the nutrient solution in which they were grown. The effects of drought on leaf relative water content (RWC), net photosynthesis, stomatal conductance, carboxylating enzyme activities and chlorophyll a fluorescence were investigated. In C. dactylon the RWC was more sensitive, but the photosynthetic activity was less sensitive, to water deficit than in P. dilatatum and Z. japonica. The decrease of photosynthesis in P. dilatatum under water deficit was not closely related to the activities of the carboxylating enzymes or to chlorophyll a fluorescence. However, decreased activities of ribulose 1,5-bisphosphate carboxylase/oxygenase and phosphoenolpyruvate carboxylase, in addition to decreased stomatal conductance, may have contributed to the decrease of photosynthesis with drought in C. dactylon and Z. japonica. The different responses to water deficit are discussed in relation to the natural habitats of C4 grasses.

AB - C4 plants are considered to be less sensitive to drought than C3 plants because of their CO2 concentrating mechanism. The C4 grasses, Paspalum dilatatum Poiret (NADP-ME), Cynodon dactylon (L.) Pers (NAD-ME) and Zoysia japonica Steudel (PEPCK) were compared in their response to water deficit imposed by the addition of polyethylene glycol to the nutrient solution in which they were grown. The effects of drought on leaf relative water content (RWC), net photosynthesis, stomatal conductance, carboxylating enzyme activities and chlorophyll a fluorescence were investigated. In C. dactylon the RWC was more sensitive, but the photosynthetic activity was less sensitive, to water deficit than in P. dilatatum and Z. japonica. The decrease of photosynthesis in P. dilatatum under water deficit was not closely related to the activities of the carboxylating enzymes or to chlorophyll a fluorescence. However, decreased activities of ribulose 1,5-bisphosphate carboxylase/oxygenase and phosphoenolpyruvate carboxylase, in addition to decreased stomatal conductance, may have contributed to the decrease of photosynthesis with drought in C. dactylon and Z. japonica. The different responses to water deficit are discussed in relation to the natural habitats of C4 grasses.

KW - C plants

KW - Drought

KW - NAD-ME

KW - NADP-ME

KW - PEPCK

U2 - 10.1071/FP06278

DO - 10.1071/FP06278

M3 - Journal article

AN - SCOPUS:33947512603

VL - 34

SP - 204

EP - 213

JO - Functional Plant Biology

JF - Functional Plant Biology

SN - 1445-4408

IS - 3

ER -