Results 151 to 160 of about 1,355 (164)

Sites of First Phellogen Initiation in Conifers

IAWA Journal, 1989
Sites of first phellogen initiation were studied in ten species of Pinaceae and Cupressaceae. The distance from the apex, age and the tissue from which the first phellogen is initiated, were determined. In Pinaceae the first phellogen arises at a shorter distance from the apex than in Cupressaceae.
S. Lev-Yadun, Nili Liphschitz
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Transcriptional profiling of cork oak phellogenic cells isolated by laser microdissection

Planta, 2017
The phenylpropanoid pathway impacts the cork quality development. In cork of bad quality, the flavonoid route is favored, whereas in good quality, cork lignin and suberin production prevails. Cork oaks develop a thick cork tissue as a protective shield that results of the continuous activity of a secondary meristem, the cork cambium, or phellogen. Most
Rita Teresa Teixeira, Ana Margarida Fortes, Hua Bai, Carla Pinheiro, Helena Pereira   +4 more
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Ontogeny of Periderm and Phellogen Activity in Ceratonia siliqua L.

Botanical Gazette, 1977
In the shoots of Ceratonia siliqua, except for the hypocotyl and the first internode, a continuous superficial phellogen and complete cork cover are established only after a prolonged period of growth has elapsed. The initiation of sequent periderms is restricted to tree parts estimated to be more than 40 yr old.
Tova Arzee, Ehud Arbel, Lila Cohen
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Phellogen initiation in the stems of Eucalyptus camaldulensis Dehnh

Australian Journal of Botany, 1970
The induction of phellogen in E. camaldulensis stems by various environmental factors was investigated. High humidity and a continuous flush of oxygen were found to cause early initiation of the phellogen. Light, temperature changes, or mechanical pressure did not play an important role in the initiation of phellogen as long as they ...
N Liphschitz, Y Waisel
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Formation of the primary protective layer and phellogen after leaf abscission in peach

Canadian Journal of Botany, 1985
Potted peach trees (Prunus persica (L.) Batsch cv. Loring) were mechanically defoliated and the influence of temperature on formation of the primary protective layer and phellogen generation in the leaf abscission region was examined histologically.
A. R. Biggs, J. Northover
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Comparison of good- and bad-quality cork: application of high-throughput sequencing of phellogenic tissue

Journal of Experimental Botany, 2014
Cork is one of the most valuable non-wood forest products and plays an important role in Mediterranean economies. The production of high-quality cork is dependent on both genome and environment, posing constraints on the industry because an ever-growing amount of bad-quality cork (BQC) development has been observed.
Rita Teresa, Teixeira, Ana Margarida, Fortes, Carla, Pinheiro, Helena, Pereira   +3 more
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PERIDERM DEVELOPMENT AND PHELLOGEN ACTIVITY IN THE SHOOTS OF ACACIA RADDIANA SAVI

New Phytologist, 1970
SummaryThe origin and the seasonal activity of the phellogen in Acacia raddiana were investigated. The phellogen is initiated from collenchyma cells of one of the three outermost layers of the cortex. The first phellogen persists for several years. The activity is periodic and slow.
TOVA ARZEE, Y. WAISEL, NILI LIPHSCHITZ
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The Annual Rhythm of Activity of the Lateral Meristems (Cambium and Phellogen) in Pistacia Lentiscus L.

IAWA Journal, 1985
Cambial and phellogen activities in Pistacia lentiscus were followed by the radiological method. Under natural conditions xylem was produced in most cases during two separate seasons of the year, i.e. spring and autumn. The phloem was produced during two different periods that were shorter than those of the xylem production.
Nili Liphschitz, S. Lev-Yadun, Y. Waisel
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The Annual Rhythm of Activity of the Lateral Meristems (Cambium and Phellogen) in Pinus Halepensis Mill. and Pinus Pinea L.

IAWA Journal, 1984
The annual rhythms of cambial and phellogen activity in Pinus halepensis and P pinea were investigated. Under natural conditions the cambium of P halepensis begins its activity in autumn, enters a quiescent period during midwinter, resurnes activity towards spring and enters a second rest period in summer.
Nili Liphschitz, S. Lev-Yadun, E. Rosen, Y. Waisel   +3 more
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An Endodermal Phellogen in the Stem of Paederia foetida Linn

Nature, 1945
DURING the course of an anatomical study of Pœderia fœtida, a twining shrub of these parts, belonging to the family Rubiaceae, we found that the phellogen originates in the stem, not in the subepidermal layers of the cortex as in most dicotyledons, but in the endodermis.
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