Gas Exchange and Dry Matter Accumulation during Leaf Development

Tichá, Ingrid; Čatský, J.; Hodáňová, Damuše; Pospišilivá, Jana; Kase, M.; Šesták, Z.

doi:10.1007/978-94-009-5530-1_8

Cited by 50 publications

(21 citation statements)

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“…1 The higher dark respiration rate observed in young leaves compared to mature leaves agrees with observations of others and has been related to energy requirements for growth (26). Such respiration rates are commonly described in the literature for leaves of other species, in soybean leaves for example (24).…”

Section: Materials and Methods Culture Conditions And Materials Preparsupporting

confidence: 84%

Comparison of the Oxygen Exchange between Photosynthetic Cell Suspensions and Detached Leaves of Euphorbia characias L

Carrier

Chagvardieff²,

Tapie³

1989

Plant Physiol.

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Using a mass-spectrometric "602/1'02-isotope technique, we compared the nature and the relative importance of oxygen exchange in photomixotrophic (PM) and photoautotrophic (PA) suspensions of Euphorbia characias L. with those in intact leaves of the same species. Young and mature leaves, dividing and nondividing cell suspensions were characterized in short-term experiments. On chlorophyll basis, the gross photosynthetic activities at CO2 saturating concentration of PA and PM suspensions varied little from those of leaves. On dry weight basis, gross photosynthesis of PA suspensions was equal to that of leaves because of their similar chlorophyll content. This was not the case in PM suspensions where gross photosynthesis was lower and largely varied during the growth cycle. The CO2 compensation point of PA cells (155-265 parts per million) was much higher than that of leaves (50-80 ppm). Oxygen uptakes were analyzed in terms of mitochondrial respiration, photorespiration and light stimulation of oxygen uptake (LSOU), often identified to Mehlertype reactions. In PA and PM suspensions, mitochondrial respiration rates were higher than in leaves by a factor of 1.5 to 4.5. In PM suspensions, photorespiration and LSOU were observed only in nondividing cells. Photorespiration and LSOU rates were comparable in PA suspensions and leaves. Our results demonstrate that photorespiration of PA suspensions has not been affected by the 2% CO2 concentration imposed during 2 years of culture.

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Section: Materials and Methods Culture Conditions And Materials Preparsupporting

confidence: 84%

Comparison of the Oxygen Exchange between Photosynthetic Cell Suspensions and Detached Leaves of Euphorbia characias L

Carrier

Chagvardieff²,

Tapie³

1989

Plant Physiol.

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“…This contrasts with the rates measured at 200/*mol m"" s"\ the light incident on the leaf surface during growth, where the reduction was smaller, to about half of the initial rate, and the onset of decline was delayed to about 36 d. The attainment of maximal photosynthetic rate before growth is complete contrasts with the data for the related grass Festuca arundinacea, in which the maximum is not reached until 10 d after full expansion (Jewiss & Woledge, 1967). On the other hand the behaviour of L. temulentum resembles that of many other plants (Ticha et al, 1985) and might be related to the relatively high carbon content per unit area during the earlier stages of leaf expansion and the availability of adequate resources for early completion of the photosynthetic machinery. This suggestion is entirely consistent with the observation that cell expansion is confined to the basal 20 mm of the fourth leaf in L. temulentum (Davies et al, 1989), a region enclosed in the sheaths and not accessible for the physiological measurements used in the present study.…”

Section: Ontogenetic Trends In Photosynthesismentioning

confidence: 84%

Leaf development in Lolium temulentum L.: photosynthesis in relation to growth and senescence

Thomas

1995

New Phytologist

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SUMMARYLength, area, weight and concentrations of pigment were measured from just after emergence until senescence of the fourth leaf of Lolium tefnulentmn L. seedlings grown in nutrient solution in a controlled environment. At the same time the progress of photosynthesis, respiration and carbon contents of the leaf were recorded. A new approach to calculating plastochron indices for grasses was developed, based on logistic curves fitted to leaf lengths. Dry weight and photosynthetic rates per unit area were greatest in young leaves. Subsequently photosynthetic capacity at light saturation declined, as did photosynthetic rates at the light incident on the leaf, although the decrease was less pronounced in the latter case. Dry weight per leaf remained fairly constant once full expansion was reached, with perhaps a slight rise in the oldest leaves. The photosynthesis and carbon content data were combined to calculate the carbon balance of leaf 4, with respect both to the atmosphere and to the rest of the plant. Net gas exchange became positive about 7 d before full leaf expansion. Leaf weight continued to increase so that the carbon balance with the rest of the plant did not become positive until just after final leaf size had been attained. These results are discussed in relation to the likely contribution of the various components of the balance to plant productivity.

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“…Maurino seems an interesting cultivar not only for its limited vigor, but also for better light distribution in its canopy compared to the other two cultivars. The better light distribution in the canopy, as well as the higher leaf net photosynthetic rate found for Maurino by Proietti et al (2012) in the same olive grove and year, should result in good total tree photosynthesis, despite the lower leaf surface area, as a result of better lighting in the internal portions (Ev- Table 8 , 1975;Daie, 1985;Tichá et al, 1985;Ceulemans and Saugier, 1991;Proietti et al, 1994). This could be one of the reasons for the higher production efficiency (amount of production per unit of leaf area) in Maurino compared to the other cultivars.…”

Section: Discussionmentioning

confidence: 99%

Productive and vegetative behavior of olive cultivars in super high-density olive grove

Proietti

Nasini

Reale

et al. 2015

Sci. agric. (Piracicaba, Braz.)

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In recent years, there has been an increase in interest in super high-density (SHD) olive (Olea europaea L.) groves because they offer early entry into production, increased productivity and the possibility of using modified mechanical vine harvesters. This study was carried out in a young SHD olive grove to examine vegetative, histo-anatomical and productive characteristics and oil quality of the Spanish Arbequina and Italian Maurino and Leccino cultivars, characterized by low, low-to-medium and high vigor, respectively. Arbequina had low vigor and limited development in height and width, as well as a high leaf/wood ratio. Maurino had a canopy volume similar to that of Arbequina and, despite a great tendency to grow in height, had low vigor, a rather compact vegetative habitus, but good lighting in the canopy and high production efficiency. In Maurino, a greater palisade parenchyma height and a larger exposed lateral surface area of the palisade parenchyma cells were observed. In the fourth year after planting, fruit production of Arbequina was about 30 % less than Leccino and Maurino. The oil content on a dry weight basis was slightly higher in Arbequina and Maurino than in Leccino. Oil quality was good for all cultivars.

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Gas Exchange and Dry Matter Accumulation during Leaf Development

Cited by 50 publications

References 0 publications

Comparison of the Oxygen Exchange between Photosynthetic Cell Suspensions and Detached Leaves of Euphorbia characias L

Comparison of the Oxygen Exchange between Photosynthetic Cell Suspensions and Detached Leaves of Euphorbia characias L

Leaf development in Lolium temulentum L.: photosynthesis in relation to growth and senescence

Productive and vegetative behavior of olive cultivars in super high-density olive grove

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