Changes in effects of ozone exposure on growth, photosynthesis, and respiration of Ginkgo biloba in Shenyang urban area

X. Y. He, S. L. Fu, W. Chen, T. H. Zhao, S. Xu, Z. Tuba

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

An open-top chamber experiment was carried out from April through October 2006 to examine the effects of elevated (80 nmol mol-1) atmospheric O3 on Ginkgo biloba (4-years-old) in urban area. The air with ambient O3 (AA, ≈ 45 nmol mol-1) was used as control. The leaf mass and size, leaf area index, net photosynthetic rate (PN), apparent quantum yield, transpiration rate, and stomatal conductance were decreased by elevated O3 (EO) exposure. Visible foliar injury, which is light-brown flecks, was observed in the EO OTCs after 90 d of exposure. Carboxylation efficiency (ΦCO2) and photorespiration and dark respiration rates were enhanced by EO exposure in the first half of the season, but all of them turned to be lower than those of the AA control at the end of experiment. Stomata limitation of photosynthesis was significantly higher than control in the whole season (pN of G. biloba exposed to EO was the result of both stomatal and non-stomatal limitations. In the early season, the inhibition of photosynthesis was mainly caused by the stomatal limitation, and the earliest response was photoprotective down-regulation of photosynthesis but not photodamage. However, at the end of the season, the non-stomatal limiting factors such as decrease in Chl content, decrease in ΦCO2, and anti-oxidative enzyme activity became more important.

Original languageEnglish
Pages (from-to)555-561
Number of pages7
JournalPhotosynthetica
Volume45
Issue number4
DOIs
Publication statusPublished - Dec 2007

Fingerprint

Ginkgo biloba
Ozone
Photosynthesis
cell respiration
ozone
urban areas
Respiration
photosynthesis
China
Growth
carbon dioxide
photorespiration
carboxylation
Respiratory Rate
stomata
leaf area index
stomatal conductance
transpiration
Down-Regulation
Air

Keywords

  • Carboxylation efficiency
  • Chlorophyll
  • Dark respiration
  • Gas exchange
  • Intercellular CO concentration
  • Leaf area index
  • Non-stomatal limitations
  • Photorespiration
  • Stomatal conductance
  • Transpiration rate

ASJC Scopus subject areas

  • Plant Science

Cite this

Changes in effects of ozone exposure on growth, photosynthesis, and respiration of Ginkgo biloba in Shenyang urban area. / He, X. Y.; Fu, S. L.; Chen, W.; Zhao, T. H.; Xu, S.; Tuba, Z.

In: Photosynthetica, Vol. 45, No. 4, 12.2007, p. 555-561.

Research output: Contribution to journalArticle

He, X. Y. ; Fu, S. L. ; Chen, W. ; Zhao, T. H. ; Xu, S. ; Tuba, Z. / Changes in effects of ozone exposure on growth, photosynthesis, and respiration of Ginkgo biloba in Shenyang urban area. In: Photosynthetica. 2007 ; Vol. 45, No. 4. pp. 555-561.
@article{3e538a5fee464129bbb6750b3feb36c1,
title = "Changes in effects of ozone exposure on growth, photosynthesis, and respiration of Ginkgo biloba in Shenyang urban area",
abstract = "An open-top chamber experiment was carried out from April through October 2006 to examine the effects of elevated (80 nmol mol-1) atmospheric O3 on Ginkgo biloba (4-years-old) in urban area. The air with ambient O3 (AA, ≈ 45 nmol mol-1) was used as control. The leaf mass and size, leaf area index, net photosynthetic rate (PN), apparent quantum yield, transpiration rate, and stomatal conductance were decreased by elevated O3 (EO) exposure. Visible foliar injury, which is light-brown flecks, was observed in the EO OTCs after 90 d of exposure. Carboxylation efficiency (ΦCO2) and photorespiration and dark respiration rates were enhanced by EO exposure in the first half of the season, but all of them turned to be lower than those of the AA control at the end of experiment. Stomata limitation of photosynthesis was significantly higher than control in the whole season (pN of G. biloba exposed to EO was the result of both stomatal and non-stomatal limitations. In the early season, the inhibition of photosynthesis was mainly caused by the stomatal limitation, and the earliest response was photoprotective down-regulation of photosynthesis but not photodamage. However, at the end of the season, the non-stomatal limiting factors such as decrease in Chl content, decrease in ΦCO2, and anti-oxidative enzyme activity became more important.",
keywords = "Carboxylation efficiency, Chlorophyll, Dark respiration, Gas exchange, Intercellular CO concentration, Leaf area index, Non-stomatal limitations, Photorespiration, Stomatal conductance, Transpiration rate",
author = "He, {X. Y.} and Fu, {S. L.} and W. Chen and Zhao, {T. H.} and S. Xu and Z. Tuba",
year = "2007",
month = "12",
doi = "10.1007/s11099-007-0095-0",
language = "English",
volume = "45",
pages = "555--561",
journal = "Photosynthetica",
issn = "0300-3604",
publisher = "Springer Netherlands",
number = "4",

}

TY - JOUR

T1 - Changes in effects of ozone exposure on growth, photosynthesis, and respiration of Ginkgo biloba in Shenyang urban area

AU - He, X. Y.

AU - Fu, S. L.

AU - Chen, W.

AU - Zhao, T. H.

AU - Xu, S.

AU - Tuba, Z.

PY - 2007/12

Y1 - 2007/12

N2 - An open-top chamber experiment was carried out from April through October 2006 to examine the effects of elevated (80 nmol mol-1) atmospheric O3 on Ginkgo biloba (4-years-old) in urban area. The air with ambient O3 (AA, ≈ 45 nmol mol-1) was used as control. The leaf mass and size, leaf area index, net photosynthetic rate (PN), apparent quantum yield, transpiration rate, and stomatal conductance were decreased by elevated O3 (EO) exposure. Visible foliar injury, which is light-brown flecks, was observed in the EO OTCs after 90 d of exposure. Carboxylation efficiency (ΦCO2) and photorespiration and dark respiration rates were enhanced by EO exposure in the first half of the season, but all of them turned to be lower than those of the AA control at the end of experiment. Stomata limitation of photosynthesis was significantly higher than control in the whole season (pN of G. biloba exposed to EO was the result of both stomatal and non-stomatal limitations. In the early season, the inhibition of photosynthesis was mainly caused by the stomatal limitation, and the earliest response was photoprotective down-regulation of photosynthesis but not photodamage. However, at the end of the season, the non-stomatal limiting factors such as decrease in Chl content, decrease in ΦCO2, and anti-oxidative enzyme activity became more important.

AB - An open-top chamber experiment was carried out from April through October 2006 to examine the effects of elevated (80 nmol mol-1) atmospheric O3 on Ginkgo biloba (4-years-old) in urban area. The air with ambient O3 (AA, ≈ 45 nmol mol-1) was used as control. The leaf mass and size, leaf area index, net photosynthetic rate (PN), apparent quantum yield, transpiration rate, and stomatal conductance were decreased by elevated O3 (EO) exposure. Visible foliar injury, which is light-brown flecks, was observed in the EO OTCs after 90 d of exposure. Carboxylation efficiency (ΦCO2) and photorespiration and dark respiration rates were enhanced by EO exposure in the first half of the season, but all of them turned to be lower than those of the AA control at the end of experiment. Stomata limitation of photosynthesis was significantly higher than control in the whole season (pN of G. biloba exposed to EO was the result of both stomatal and non-stomatal limitations. In the early season, the inhibition of photosynthesis was mainly caused by the stomatal limitation, and the earliest response was photoprotective down-regulation of photosynthesis but not photodamage. However, at the end of the season, the non-stomatal limiting factors such as decrease in Chl content, decrease in ΦCO2, and anti-oxidative enzyme activity became more important.

KW - Carboxylation efficiency

KW - Chlorophyll

KW - Dark respiration

KW - Gas exchange

KW - Intercellular CO concentration

KW - Leaf area index

KW - Non-stomatal limitations

KW - Photorespiration

KW - Stomatal conductance

KW - Transpiration rate

UR - http://www.scopus.com/inward/record.url?scp=36549058251&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36549058251&partnerID=8YFLogxK

U2 - 10.1007/s11099-007-0095-0

DO - 10.1007/s11099-007-0095-0

M3 - Article

VL - 45

SP - 555

EP - 561

JO - Photosynthetica

JF - Photosynthetica

SN - 0300-3604

IS - 4

ER -