On the developmental dependence of leaf respiration: responses to short‐ and long‐term changes in growth temperature

Armstrong, Anna F.; Logan, David C.; Atkin, Owen K.

doi:10.3732/ajb.93.11.1633

Cited by 71 publications

(76 citation statements)

References 48 publications

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“…R and P N represented the means of the maximum values of the four days' measurements per month. Q 10 , a coefficient proportional to respiration increasing for each 10 °C rise (Atkin et al 2000), was calculated according to Carla et al (2000) and Armstrong et al (2006) as Q 10 = 10 (10×slope of regression line) . The slope in this equation was extracted from the regression line between log 10 of R and air T m .…”

Section: Methodsmentioning

confidence: 99%

“…The temperature sensitivity of P N differs from that of R (Gifford 2003). Temperature is the major determinant of the respiratory activity, and its change in the short-term results in immediate R variations (Armstrong et al 2006). Understanding the effect of environmental changes, in particular of air temperature increase, on plant R is therefore a prerequisite for predicting the impact of global changes on plant functioning and atmospheric CO 2 concentration (Ryan 1991, Larigauderie and Körner 1995, Atkin and Tjoelker 2003, ZaragozaCastells et al 2007.…”

Section: Introductionmentioning

confidence: 99%

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Relationship between net photosynthesis and leaf respiration in Mediterranean evergreen species

Gratani¹,

Varone²,

Catoni³

2008

Photosynt.

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The relationship between net photosynthetic (P(N)) and leaf respiration ( R) rates of Quercus ilex, Phillyrea latifolia, Myrtus communis, Arbutus unedo, and Cistus incanus was monitored in the period February 2006 to February 2007. The species investigated had low R and P(N) during winter, increasing from March to May, when mean air temperature reached 19.2 degrees C. During the favourable period, C. incanus and A. unedo had a higher mean P(N) ( 16.4 +/- 2.4 mu mol m(-2) s(-1)) than P. latifolia, Q. ilex, and M. communis ( 10.0 +/- 1.3 mu mol m(-2) s(-1)). The highest R ( 1.89 +/- 0.30 mu mol m(-2) s(-1), mean of the species), associated to a significant P(N) decrease ( 62 % of the maximum, mean value of the species), was measured in July ( mean R/P(N) ratio 0.447 +/- 0.091). Q(10), indicating the respiration sensitivity to short-term temperature increase, was in the range 1.49 to 2.21. Global change might modify R/P(N) determining differences in dry matter accumulation among the species, and Q. ilex and P. latifolia might be the most favoured species by their ability to maintain sufficiently higher P(N) and lower R during stress periods

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Relationship between net photosynthesis and leaf respiration in Mediterranean evergreen species

Gratani¹,

Varone²,

Catoni³

2008

Photosynt.

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show abstract

“…ATP). (Armstrong et al 2006;Gratani et al 2008b). As leaf expansion progresses leaf dark respiration decreases reaching a steady-state value (4.2 ± 0.5 lmol CO 2 m -2 s -1 ) 34 days after bud break when leaf area was 58% of the its final size underlining that growth may be supported by the photosynthates produced by the new expanding leaves (Turgeon 1989;Miyazawa et al 2003).…”

Section: Rhamnus Alaternusmentioning

confidence: 97%

“…Leaf expansion depends on energy availability, namely on carbohydrate supply for the construction of the new leaf tissues (Atkins and Cummins 1994;. Thus, during the early phases of leaf expansion the respiration rates might exceed those of CO 2 assimilation to sustain the construction process of leaf structural compounds (Armstrong et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Leaf expansion in Rhamnus alaternus L. by leaf morphological, anatomical and physiological analysis

Varone

Gratani

2009

Trees

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Morphological, anatomical and physiological traits of Rhamnus alaternus during leaf expansion were analysed. Bud break occurred when mean air temperature was 14.1 ± 1.2C, and it was immediately followed by the increase of leaf area and leaf dry mass. The highest leaf expansion rates happened during the first 22 days of the process. Leaf area and leaf dry mass reached the steadystate value 46 and 62 days after bud break, respectively. Net photosynthesis increased from bud break to full leaf expansion, and total chlorophyll content had the same trend, confirmed by the correlation between the two variables. Leaf dark respiration peaked during the first 11 days of leaf expansion, then decreased and reached a steadystate value 34 days after bud break. R. alaternus completed cell division and cell enlargement of the epidermal tissue 28 days after bud break, and the ones of the mesophyll tissue at full leaf expansion. The results underline that morphological, anatomical and physiological leaf traits in R. alaternus are indicative of a less sclerophyllous species (i.e. higher specific leaf area) compared with other Mediterranean evergreen species. Moreover, the higher fraction of mesophyll volume occupied by the intercellular air spaces, and the ability to end the leaf expansion process before air temperature might be a limiting factor, makes R. alaternus closer to the mesophyte species

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“…A strong relationship between temperature and plant tissue respiration has been exhaustively proved and verified under controlled conditions (e.g. Maier et al 1998;Tjoelker et al 1999Tjoelker et al , 2001Atkin et al 2000Atkin et al , 2006Atkin et al , 2007Loveys et al 2003;Armstrong et al 2006). However, in the field, a consistent relationship is often not found (e.g.…”

Section: Introductionmentioning

confidence: 99%

Diverging temperature response of tree stem CO2 release under dry and wet season conditions in a tropical montane moist forest

Zach

Horna

Leuschner

2009

Trees

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It is commonly presumed that plant respiratory CO 2 release increases with increasing temperature. However, we report on very contrasting stem CO 2 release (R S )-temperature relationships of trees in a species-rich tropical montane forest of southern Ecuador under dry and wet season conditions. Rates of R S were low and completely uncoupled from the dial temperature regime during the humid season. In contrast, during the dry season, R S was generally higher and temperature sensitivity of R S differed greatly in degree and even in the direction of response, indicating that temperature might not be the only determinant of R S . In order to explain the heterogeneity of R S , we related R S to vapour pressure deficit, wind speed and solar radiation as important abiotic drivers influencing transpiration and photosynthesis. Stepwise multiple regression analyses with these meteorological predictors either were biased by high collinearity of the independent variables or could not enhance the ability to explain the variability of R S . We assume maintenance respiration to dominate under humid conditions unfavourable for energy acquisition of the tree, thus explaining the pronounced uncoupling of R S from atmospheric parameters. In contrast, the drier and hotter climate of the dry season seems to favour R S via enhanced assimilatory substrate delivery and stem respiratory activity as well as elevated xylem sap CO 2 imports with increased transpiration. In addition, tree individual differences in the temperature responses of R S may mirror diverging climatic adaptations of co-existing moist forest tree species which have their distribution centre either at higher or lower elevations.

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On the developmental dependence of leaf respiration: responses to short‐ and long‐term changes in growth temperature

Cited by 71 publications

References 48 publications

Relationship between net photosynthesis and leaf respiration in Mediterranean evergreen species

Relationship between net photosynthesis and leaf respiration in Mediterranean evergreen species

Leaf expansion in Rhamnus alaternus L. by leaf morphological, anatomical and physiological analysis

Diverging temperature response of tree stem CO2 release under dry and wet season conditions in a tropical montane moist forest

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