Photosynthetic light response in the Japanese population of <i>Chenopodium album</i>

Nakatani, Keiko; Takayanagi, Shigeru; Nakayama, Soichi; Noguchi, Katsuyoshi

doi:10.1111/j.1445-6664.2008.00322.x

Cited by 1 publication

(6 citation statements)

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“…1998). Our results agree with the findings by Nakatani et al. (2009b) who covered a wider range of latitude (32.4–43.5°N) compared with our study (39.5–45.4°N).…”

Section: Discussionsupporting

confidence: 93%

“…variation with latitude as observed by Jonas and Geber (1999), although it was predicted that genetic differentiation might be directed towards a greater photosynthetic rate in low-latitude populations (Li et al 1998). Our results agree with the findings by Nakatani et al (2009b) who covered a wider range of latitude (32.4-43.5°N) compared with our study (39.5-45.4°N). This implies that high genetic variation appears even in populations within a limited climatic zone.…”

Section: Genetic Variation In Physiological Properties Between Populasupporting

confidence: 91%

“…This implies that C. album , a shade avoider, phenotypically responded to the light regime by changing the SLA and consequently this phenotypic alteration would change the photosynthetic activity by changing P max as well as α. Genetic variation in α is also evident, as shown by Nakatani et al. (2009b).…”

Section: Discussionmentioning

confidence: 81%

“…Re‐parameterization of the light‐photosynthetic rate relationship, obtained by using the standard Michaelis–Menten model (e.g. rectangular hyperbolic model) (Givnish 1988), gives an overestimated P max as shown by Nakatani et al. (2009b); thus, we used the non‐rectangular hyperbola model proposed by Marshall and Biscoe (1980):…”

Section: Methodsmentioning

confidence: 99%

“…They also showed that C. album had different growth responses under various temperature regimes. Nakatani et al. (2009a,b) investigated the photosynthetic rate and photoperiodic response of nine populations of C. album in Japan ranging from 32.4 to 43.5°N.…”

Section: Introductionmentioning

confidence: 99%

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Variation and plasticity of photosynthesis and respiration in local populations of fat‐hen Chenopodium album in northern Japan

Haraguchi¹,

Li²,

Matsuki³

et al. 2009

Plant Species Biology

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To examine variation and plasticity of photosynthesis and dark respiration among regional populations, seven populations of Chenopodium album L. (a shade-avoider species) were collected in northern Japan and grown under shaded and unshaded conditions. The light-saturated photosynthetic rates (Pmax) on both a leaf area and a mass basis significantly differed among the populations; the light regime affected Pmax per leaf area, but had no effect on Pmax per leaf mass. There were no significant differences among the populations in dark respiration rates (Rd) either per leaf area or mass; the light regime affected Rd per leaf area, but had no effect on Rd per leaf mass. Specific leaf area (SLA) exhibited significant differences among populations and SLA significantly increased under shaded conditions. None of these traits showed clinal variation along a latitudinal gradient, partially because the climatic span across which the populations were collected was relatively small (13.9-18.9°C). Pmax, SLA and a (initial slope at zero irradiance of the light-photosynthetic rate relationship curve) showed great genetic variation, whereas Rd showed little genetic variation. Pmax and Rd showed high plasticity on a leaf area basis, but not on a leaf mass basis as SLA and a had high plasticity. We found that there is great genetic variation between local populations of C. album within a small geographical range, which controlled plasticity of the reaction norm of the photosynthetic property for the light regime during the growth period. More variation in reaction norms would enable C. album populations to colonize unpredictable habitats. Genetic variation after long-term adaptation to habitat conditions as well as plasticity during short-term acclimation to an unpredictable environment could enable C. album to distribute itself successfully over a wide range of climates.

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“…1998). Our results agree with the findings by Nakatani et al. (2009b) who covered a wider range of latitude (32.4–43.5°N) compared with our study (39.5–45.4°N).…”

Section: Discussionsupporting

confidence: 93%