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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Allard, G.;
Nelson, C. J. |
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| Author Affiliation: | Agron. Dept., Univ. of Missouri |
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| Title: | Partitioning of photosynthate within and distal to the growth zone of tall fescue leaf blades |
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| Source: | Plant Physiology. Vol. 89, No. 4, April 1989, p. 3. |
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| Publishing Information: | Lancaster, PA: American Society of Plant Physiologists |
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| Keywords: | TIC Keywords: Festuca arundinacea; Cell division; Carbohydrates; Partitioning
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| Abstract/Contents: | "The growth zone of developing tall fescue leaf blades, consisting of zones of cell division, cell elongation and cell maturtion, are a strong sink for photosythate. Distribution of 14C along the growth zone and partitioning between water-soluble carbohydrates (WSC) and WSC-free dry matter (SDM) were observed for up to 64 h after labelling the youngest fully expended leaf or the exposed tip of the elongating leaf with 14CO2. Depostion rates of 14C were estimated using the continuity equation. The cell elongation zone, especially the WSC fraction, was the strongest sink for 14C. In the proximal end of the maturation zone, partitioning of 14C shifted from being allocated mainly to the WSC and SDM at the distal end of the zone after 64 h. A significant proportion of 14C in the SDM fraction of the maturation zone could be attributed to redistribution from WSC." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Allard, G., and C. J. Nelson. 1989. Partitioning of photosynthate within and distal to the growth zone of tall fescue leaf blades. Plant Physiol. 89(4):p. 3. |
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MSU catalog number: QK 1 .P68 |
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