The formation of heterogeneous storeys in the cambium on the example of Laburnum anagyroides Medik

• Autorzy: Wilczek A.

Warianty tytułu

PL

Formatowanie się heterogennej piętrowości kambium Laburnum anagyroides Medik

• Języki publikacji: EN

Abstrakty

EN

The formation of the storeyed pattern of cambium in the first two years of cambial activity and the structure of mature cambium was examined in Laburnum anagyroides, a decorative shrub growing in temperate climate. A distinct storeyed pattern was observed in two-year-old stems, despite the presence of tall rays. The heterogeneous nature of storeys was revealed by the analysis of i) the number of fusiform initials forming storeys or groups of packets; and ii) the frequency of anticlinal divisions in the examined years of cambial activity and the calculation of the relative increase of the cambial circumference. The results are discussed on the basis of the recent hypothesis of intrusive growth of fusiform initial, occurring between the tangential walls of its neighbouring initial and its closest derivative.

PL

Badanie formowania piętrowości oraz struktury dojrzałego kambium Laburnum anagyroides, krzewu ozdobnego rosnącego w klimacie umiarkowanym Polski (Katowice) wykazały, że piętrowość powstaje w ciągu dwóch pierwszych lat aktywności kambium pomimo obecności wysokich, wielorzędowych promieni. Analizy: i) liczby inicjałów wrzecionowatych tworzących pakiety lub wspólne piętra po obu stronach wysokich, często wielorzędowych promieni oraz ii) częstotliwości podziałów antyklinalnych w badanych latach aktywności kambium w porównaniu do przyrostu względnego obwodu kambium wskazują na heterogenną naturę pięter. Wyniki zostały omówione w oparciu o założenia hipotezy wzrostu intruzywnego inicjałów kambium, jako zachodzącego pomiędzy ściany styczne sąsiednich inicjałów oraz ich najbliższych pochodnych.

• Wydawca: -
• Czasopismo: Acta Agrobotanica
• Rocznik: 2012
• Tom: 65
• Numer: 2
• Opis fizyczny: p.47-56,fig.,ref.

Twórcy

autor

Wilczek A.

• Botanical Garden, Centre for Biological Diversity Conservation of the Polish Academy of Sciences, Prawdziwka 2, 02-973 Warsaw, Poland

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