Studies on Lateral Movement of Phosphorus <i>32</i> in Peppermint

Rinne, Robert W.; Langston, Ruble

doi:10.1104/pp.35.2.216

Cited by 25 publications

(17 citation statements)

References 3 publications

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“…This is further demonstrated by the greatest concentration of these elements being centred in the actively growing regions of the plant, e.g., foliage and roots compared to stem tissue components. In contrast, calcium which is largely nonmetabolically absorbed and accumulated in the plant, was most greatly concentrated in the stem tissue, and increases in the phosphorus supply did not result in a corresponding increase in calcium concentration (see also Biddulph et al 1958, Rinne and Langston 1960, Moore et a! 1961.…”

Section: Chemical Compositionmentioning

confidence: 92%

Growth and Nutrient Uptake by Flooded Gum Seedlings Subjected to Various Phosphorus Supplies

Lacey

Leaf

Talli

1966

Australian Forestry

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In a study of the mineral nutrition of flooded gum E. grandis Hill ex Maiden in a controlled environment, it was noted that anthocyanin colouration of the upper leaf surface resulted from phosphorus deficiency. Increase in phosphorus supply with other nutrient elements supplied at constant levels resulted in (I) an increase in seedling dry-weight and stem-leaf ratio, and a decrease in root-shoot ratio, and (2) a general increase in tissue concentration of nitrogen, phosphorus and potassium, a general decrease in tissue concentration of calcium, but no change in tissue concentration of magnesium. A foliage phosphorus concentration of 0.11 per cent was found to be the critical level for near-optimal seedling dry-weight production. The levels of various nutrient elements, nitrogen, phosphorus, potassium, calcium and magnesium, differed with respect to the tissues (foliage, stem or roots) in which they were most concentrated.

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Section: Chemical Compositionmentioning

confidence: 92%

Growth and Nutrient Uptake by Flooded Gum Seedlings Subjected to Various Phosphorus Supplies

Lacey

Leaf

Talli

1966

Australian Forestry

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“…The net effect is greater nutrient uptake by those roots. Although it is commonly assumed that nutrients taken up by individual roots will be transported throughout the plant, there is evidence that the transport of nutrients within a plant can be sectorialpreferentially transported from roots or leaves to specific tissues with the most direct vascular connections (Rinne and Langston 1960;Hay and Sackville Hamilton 1996;Orians et al 2002;and reviewed by Murray et al 1982;Watson and Casper 1984;Orians and Jones 2001;Orians et al 2002). Orians et al (2002) manipulated nutrient levels to two different root zones of split-root tomatoes, and found that leaves vertically aligned above the fertilized lateral roots had direct vascular connections to those roots, were larger, and had lower concentrations of phenolics than did leaves without direct vascular connections.…”

Section: Introductionmentioning

confidence: 99%

Differential sectoriality in long-distance transport in temperate tree species: evidence from dye flow, 15N transport, and vessel element pitting

Orians

Vuuren

Harris

et al. 2004

Trees

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The capture of patchily distributed nutrients by tree roots has received extensive research, but the fate of those nutrients has not. We performed experiments to determine if nutrient transport within tree species is preferentially transported from specific roots to specific branches. Saplings of five species with contrasting growth requirements were examined: two Betula species (B. papyrifera and B. lenta), Populus tremuloides, and two Acer species (A. saccharum and A. rubrum). To quantify patterns of long-distance transport, we examined the accumulation of safranin-O dye and 15 N in branches when these tracers were applied to isolated lateral roots (dye and 15 N) and to the main root system ( 15 N). Because transport of nutrients between sectors requires flow through intervessel pit pairs of adjacent xylem vessel elements, we quantified the area of intervessel pits, the number of pits per unit vessel wall area, and the % vessel wall area as pits in Acer and Betula. We found that the two Betula species were integrated (tracers applied to isolated roots were likely to accumulate in all branches), while P. tremuloides and the two Acer species were sectorial (tracer accumulation was more concentrated in particular branches). Betula had the largest number of intervessel pits per unit vessel wall area and the largest percentage of vessel wall area as pits. The high density of bordered pits may explain the ease of tracer movement throughout the two Betula species. Greater integration may allow certain trees (e.g., Betula) to exploit nutritionally patchy environments such as rocky soils, and may alter plant-herbivore interactions.

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“…port of resources from shoots to roots (Cook and Stoddard, 1960;Steiber and Beringer, 1984;Singleton and van Kessel, 1987;Murphy and Watson, 1996) and from roots to shoots (Rinne and Langston, 1960;Hay and Sackville Hamilton, 1996) is also prevalent. For example, Rinne and Langston (1960) performed split-root studies and showed that the movement of phosphorous isotope (P 32 ) was confined to leaves and sides of leaves orthostichous to the labeled roots.…”

mentioning

confidence: 97%

“…For example, Rinne and Langston (1960) performed split-root studies and showed that the movement of phosphorous isotope (P 32 ) was confined to leaves and sides of leaves orthostichous to the labeled roots. These shortterm isotope experiments suggest that spatial variation in the availability of soil nutrients might result in heterogeneity in plant growth and traits important to herbivores.…”

mentioning

confidence: 99%

Vascular architecture and patchy nutrient availability generate within‐plant heterogeneity in plant traits important to herbivores

Orians

Ardón

Mohammad

2002

American J of Botany

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Within-plant heterogeneity in growth, morphology, and chemistry is ubiquitous, and is commonly attributed to differences in tissue age, light availability, or previous damage by herbivores. Although these factors are important, we argue that plant vascular architecture is an underappreciated determinant of heterogeneity. Vascular architecture can restrict the transport of resources (nutrients, photosynthate, hormones, etc.) to within specific sectors of the plant: this is referred to as sectoriality. Although studies have documented sectoriality in the transport of isotopes and dyes from roots to shoots, the ecological consequences of this sectoriality remain poorly understood. We tested the hypothesis that spatial variation in belowground nutrient availability combined with sectorial transport results in localized "fertilization" of aboveground plant parts and generates heterogeneity in traits important to herbivores. Our split-root experiments with tomato (Lycopersicon esculentum Mill) clearly demonstrate that fertilization to isolated lateral roots generates heterogeneity in leaf morphology, phenolic chemistry, and side-shoot growth. Specifically, leaflets with direct connections to these lateral roots were larger and had lower levels of rutin and chlorogenic acid than did leaflets in other sectors lacking direct vascular connections. Moreover, side-shoot production was greater in the connected sectors. We discuss the implications of this heterogeneity for plant-herbivore interactions.

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Studies on Lateral Movement of Phosphorus 32 in Peppermint

Cited by 25 publications

References 3 publications

Growth and Nutrient Uptake by Flooded Gum Seedlings Subjected to Various Phosphorus Supplies

Growth and Nutrient Uptake by Flooded Gum Seedlings Subjected to Various Phosphorus Supplies

Differential sectoriality in long-distance transport in temperate tree species: evidence from dye flow, 15N transport, and vessel element pitting

Vascular architecture and patchy nutrient availability generate within‐plant heterogeneity in plant traits important to herbivores

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