Light Acclimatization Potential of Ficus benjamina1

Fails, Barbara S.; Lewis, Alex; Barden, J. A.

doi:10.21273/jashs.107.5.762

Cited by 13 publications

(4 citation statements)

References 13 publications

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“…Although citrus leaves from exterior canopy positions have higher N contents than leaves from interior positions (15), there is no report of citrus nitrogen use efficiency. Such information can provide insight regarding resource partitioning (3,9,23) during acclimation in tree canopy microclimates.…”

Section: Resultsmentioning

confidence: 99%

Light Acclimation in Citrus Leaves. I. Changes in Physical Characteristics, Chlorophyll, and Nitrogen Content

Syvertsen

Smith

1984

J. Amer. Soc. Hort. Sci.

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‘Duncan’ grapefruit (C. paradisi Macf.) and ‘Pineapple’ sweet orange (Citrus sinensis L.) seedlings were grown in full sunlight, 50% and 90% shade; maximum photosynthetic photon flux densities (PPFD) of 2300, 1100 and 200 μmol s−1m−2, respectively. In fully expanded matured (hardened) leaves, leaf thickness, specific leaf weight (SLW), tissue density, and nitrogen content were highest in full sun leaves and lowest in 90% shade leaves. Leaf chlorophyll content was highest in 90% shade leaves. Half of the seedlings which were grown in full sunlight were transferred into 50% shade to simulate normal canopy development; half of the seedlings from 50% and 90% shade were moved into full sunlight to simulate changes that occur after hedging. Specific leaf weight and tissue density changed in the same direction as PPFD. Leaf nitrogen content decreased temporarily when leaves were exposed to new PPFD conditions regardless of the PPFD levels. Total leaf chlorophyll content initially decreased when seedlings were transferred into full sunlight but began to increase after 4–6 weeks. Chlorophyll content increased in seedlings transferred from full sun to 50% shade. Percentage of air space within leaf tissues did not change during acclimation to new PPFD levels. Changes in leaf anatomy, physical characteristics, and chemical components are mechanisms that enable citrus leaves to acclimate to a wide range of changing light environments, even after leaves are fully mature.

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Section: Resultsmentioning

confidence: 99%

Light Acclimation in Citrus Leaves. I. Changes in Physical Characteristics, Chlorophyll, and Nitrogen Content

Syvertsen

Smith

1984

J. Amer. Soc. Hort. Sci.

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“…Smooth surfaces, inorganic deposits on the leaf surface (such as salt crystals) and the development of air-filled hairs are all possible forms of adaptation [78]. Previous studies have also reported the light acclimation ability of F. benjamina, which includes well-developed palisade tissue and higher stomatal density [79,80]. T. peruviana also has a thick cell and palisade layer [81], which may enable it to prevent absorbing excess light [82].…”

Section: Discussionmentioning

confidence: 99%

Analyzing the Effects of Urban Photopollution on Photosynthetic Efficiency of Certain Trees through Chlorophyll Fluorescence OJIP Transient

et al. 2022

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Trees in urban areas provide important ecosystem services and are an essential element of urban green space. The constant increase in artificial light from anthropogenic activities around the world creates photopollution that affects the phenology and physiology of plants. Here we conducted a field study to investigate the anthropogenic impacts on six urban trees (Saraca asoca, Terminalia catappa, Bauhinia variegata, Holoptelea integrifolia, Ficus benjamina and Thevetia peruviana) using chlorophyll fluorescence analysis. OJIP curve, maximum quantum yield of primary photochemistry (ΦPo), quantum yield of electron transport (ΦEo), probability that an absorbed photon will be dissipated (ΦDo), photosynthetic performance index (PIcsm) and reaction center photochemistry were assessed. According to the results, various parameters of chlorophyll fluorescence showed significant and important effects on different tree species. T. peruviana and F. benjamina were found to be tolerant to street lighting, while on the other hand, S. asoca, T. catappa, B. variegata and H. integrifolia were found to be sensitive to artificial light induced by street lamps. This study clearly indicates that chlorophyll fluorescence analysis is a potent method for screening the tolerance of tree species to photopollution induced by artificial lights.

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“…Nonuni form growth of axillary shoots has been ob served among cuttings of golden pothos. Basal cuttings in Schefflera arboricola and Hedera helix develop longer shoots and more roots than apical cuttings (3,5). Nodal position also may affect shoot growth after rooting in golden pothos.…”

Section: Literature Citedmentioning

confidence: 99%

Influence of Light and Heated Medium on Rooting and Shoot Growth of Two Foliage Plant Species

Wang

1988

horts

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Ficus benjamina and Codiaeum variegatum ‘Gold Dust’ stem tip cuttings were rooted in a mist bed at 290 or 90 µmols·m–2 Photosynthetic photon flux (PPF) with or without 28° ± 1°C medium heating and then potted. Number of roots in C. variegatum was unaffected by either PPF or medium heating; however, both factors enhanced root elongation. Forty days after potting, cuttings rooted under 290 µmol·s–1·m–2 had more lateral shoots than those rooted under 90 µmol·s-1·m–2 PPF. Although cuttings rooted in heated medium under the lower PPF had roots more than twice as long as those on cuttings rooted in unheated medium under the high PPF, it had little effect on subsequent shoot growth. F. benjamina rooting was improved in heated medium and was not affected by PPF. Unheated cuttings rooted better under high than low PPF. Shoot growth 10 weeks after transplanting was unaffected by the initial differences in root grade.

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Light Acclimatization Potential of Ficus benjamina1

Cited by 13 publications

References 13 publications

Light Acclimation in Citrus Leaves. I. Changes in Physical Characteristics, Chlorophyll, and Nitrogen Content

Light Acclimation in Citrus Leaves. I. Changes in Physical Characteristics, Chlorophyll, and Nitrogen Content

Analyzing the Effects of Urban Photopollution on Photosynthetic Efficiency of Certain Trees through Chlorophyll Fluorescence OJIP Transient

Influence of Light and Heated Medium on Rooting and Shoot Growth of Two Foliage Plant Species

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