Interspecific Variation in the Growth Response of Plants to Elevated CO2: A Search for Functional Types

Poorter, Hendrik; Roumet, Catherine; Campbell, Bruce

doi:10.1016/b978-012420870-4/50057-8

Cited by 179 publications

(189 citation statements)

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“…A reduction in SLA is a common response to CO # enrichment (Curtis, 1996 ;Poorter et al, 1996 ;Bertin et al, 1999 ;Gunn et al, 1999). Surprisingly, in the present study SLA significantly decreased only for D. glomerata and not for B. erectus.…”

Section: contrasting

confidence: 50%

“…Insufficient sink demand in plants grown at elevated CO # can result in an accumulation of TNC and a down-regulation of photosynthesis (Stitt, 1991). Consistent with that view, species with small sinks (slow-growing species) have a lower growth response to CO # than other species (crops and fast-growing species) (Poorter et al, 1996). Larger accumulation of TNC should therefore be expected in leaves of the less responsive genotypes.…”

Section: mentioning

confidence: 73%

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Leaf structure and chemical composition as affected by elevated CO₂: genotypic responses of two perennial grasses

1999

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Genotypic variability was studied in two Mediterranean grass species, Bromus erectus and Dactylis glomerata, with regard to the response to CO # of leaf total non-structural carbohydrate concentration ([TNC] lf ), specific leaf area (SLA), and leaf carbon and nitrogen concentrations ([C] lf and [N] lf , respectively). Fourteen genotypes of each species were grown together on intact soil monoliths at ambient and elevated CO # concentrations (350 and 700 µmol mol −" , respectively). In both species, the most consistent effect of elevated CO Key words : elevated CO # , intraspecific variability, nitrogen, specific leaf area, total non-structural carbohydrate. One of the most consistent long-term effects of elevated CO # on plants is on leaf structure and chemical composition (Luo et al., 1994 ;Poorter et al., 1997 ; Cotrufo et al., 1998). In most cases, elevated CO # increases leaf total non-structural carbohydrate concentration ([TNC] lf ) and decreases specific leaf area (SLA ; the ratio between leaf area and leaf biomass) and leaf N concentration expressed as dry mass ([N m ] lf ). Although these effects appear to be fairly general, there is considerable variation in their magnitude across species and environments (Ko$ rner & Miglietta, 1994 ;Luo et al., 1994 ;Ko$ rner et al., 1995 ;Poorter et al., 1997). At least part of the variability in SLA and [N m ] lf responses to elevated CO # arises from interspecific differences in TNC accumulation (Stulen et al., 1998). These differences can cause an increase in leaf thickness (Vu et al., 1989 ;Radoglou & Jarvis, 1990), one of the components of SLA, and an N *Author for correspondence (fax j33 4 67 41 21 38 ; e-mail roumet!cefe.cnrs-mop.fr).dilution. Recalculation of SLA on a structural dry mass basis (SLAst) resulted in total elimination of the CO # effect in many species Den Hertog et al., 1998), whereas in others the decrease persisted, suggesting additional changes in leaf anatomy (Den Hertog et al., 1996) # are compared at a given age could be the result of plants grown at elevated CO # being larger (Coleman et al., 1993). In addition, [N m ] lf is often negatively correlated

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Section: contrasting

confidence: 50%

Section: mentioning

confidence: 73%

Leaf structure and chemical composition as affected by elevated CO₂: genotypic responses of two perennial grasses

1999

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“…The rate of stimulation is, however, greatly influenced by the growth type and the nutrient supplies (Poorter et al, 1996;Li et al, 2007). The positive effect of CO 2 enrichment is well known and has been applied in horticulture for various species for a long time (Tremblay and Gosselin, 1998;Terbe and Slezák, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effect of CO2 enrichment on canopy photosynthesis, water use efficiency and early development of tomato and pepper hybrids

Bencze¹,

Keresztényi²,

Varga

et al. 2011

Acta Agronomica Hungarica

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The effect of CO 2 enrichment on the rate of photosynthesis and the water use efficiency (WUE) of young pepper and tomato plants was studied in the phytotron. A CO 2 level of 1000 ppm significantly increased the net assimilation rate in the upper foliage, while the increase was even more considerable in the lower layers of the canopy, with values of up to 100%. The 1500 ppm CO 2 level caused a further substantial increase in CO 2 assimilation and at least doubled (in tomato) or tripled (in pepper) the water use efficiency on a leaf area basis compared to the ambient values. Although the response in terms of photosynthesis and WUE was not variety-specific, there were differences between the pepper hybrids in the biomass components, exceeding 100% for the total biomass at the 1500 ppm CO 2 level. In tomato, however, there was no significant variation in the total biomass of the three hybrids investigated in this early phase of development at either CO 2 level.

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“…In the past decades, the effects of elevated CO 2 on plants have been documented in numerous papers and review articles, and the consensus of most of these reports is that elevated CO 2 increases plant growth (Ceulemans and Mousseau 1994;Poorter et al 1996;Drake and Gonzalez-Meler 1997;Jach and Ceulemans 1999;Norby et al 2001;Calfapietra et al 2003;Janssens et al 2005). However, only relatively few investigations have considered the direct consequences of soil water deficits imposed on plants that are exposed to elevated CO 2 atmospheres (Serraj et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Interactive effects of elevated CO2 and drought stress on leaf water potential and growth in Caragana intermedia

Xiao

Sun

Zhou

et al. 2005

Trees

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We studied the responses of leaf water potential ( w ), morphology, biomass accumulation and allocation, and canopy productivity index (CPI) to the combined effects of elevated CO 2 and drought stress in Caragana intermedia seedlings. Seedlings were grown at two CO 2 concentrations (350 and 700 µmol mol −1 ) interacted with three water regimes (60-70%, 45-55%, and 30-40% of field capacity of soil). Elevated CO 2 significantly increased w , decreased specific leaf area (SLA) and leaf area ratio (LAR) of drought-stressed seedlings, and increased tree height, basal diameter, shoot biomass, root biomass as well as total biomass under the all the three water regimes. Growth responses to elevated CO 2 were greater in wellwatered seedlings than in drought-stressed seedlings. CPI was significantly increased by elevated CO 2 , and the increase in CPI became stronger as the level of drought stress increased. There were significant interactions between elevated CO 2 and drought stress on leaf water potential, basal diameter, leaf area, and biomass accumulation. Our results suggest that elevated CO 2 may enhance drought avoidance and improved water relations, thus weakening the effect of drought stress on growth of C. intermedia seedings.

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Interspecific Variation in the Growth Response of Plants to Elevated CO2: A Search for Functional Types

Cited by 179 publications

References 108 publications

Leaf structure and chemical composition as affected by elevated CO₂: genotypic responses of two perennial grasses

Leaf structure and chemical composition as affected by elevated CO₂: genotypic responses of two perennial grasses

Effect of CO2 enrichment on canopy photosynthesis, water use efficiency and early development of tomato and pepper hybrids

Interactive effects of elevated CO2 and drought stress on leaf water potential and growth in Caragana intermedia

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Interspecific Variation in the Growth Response of Plants to Elevated CO2: A Search for Functional Types

Cited by 179 publications

References 108 publications

Leaf structure and chemical composition as affected by elevated CO2: genotypic responses of two perennial grasses

Leaf structure and chemical composition as affected by elevated CO2: genotypic responses of two perennial grasses

Effect of CO2 enrichment on canopy photosynthesis, water use efficiency and early development of tomato and pepper hybrids

Interactive effects of elevated CO2 and drought stress on leaf water potential and growth in Caragana intermedia

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Product

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Leaf structure and chemical composition as affected by elevated CO₂: genotypic responses of two perennial grasses

Leaf structure and chemical composition as affected by elevated CO₂: genotypic responses of two perennial grasses