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1

Initiation of periderm in chosen species of the Cornus L. genus

100%

Myskow E.

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nr Suppl.1

2

Dynamics of the ray pattern in cambium of Diospyros lotus

63%

Myskow E. , Zagorska-Marek B.

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2013

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tom 69

EN

Cambial rays, give rise to phloem and xylem rays. This way they affect the efficiency of a radial conducting system in a tree. Both, frequency of rays and their arrangement on the expanding cambial surface must be precisely controlled during tree ontogeny. The main aim of this research was to analyse the changes in the ray arrangement of Diospyros lotus L. cambium during transition from its nonstoried to double–storied structure. In order to trace the history of cambial ray dynamics, the behaviour of wood rays was followed in successive annual rings. Special attention was paid to developmental events, such as initiation and elimination of rays as well as their splitting and uniting. Moreover, the additions and eliminations of ray cell initials at the both opposite ray margins were followed. The most evident was the initial split of high primary rays into the smaller parts and their subsequent separation concurrent with the increase in cambial girth during the first years of a tree ontogeny. Between the existing rays new secondary rays were initiated by segmentation of fusiform initials. These all developmental events led to the formation of a double-storied pattern. In addition, the recurrent uniting and splitting of rays indicated their permanent rearrangement and the dynamic maintenance of a general pattern. The presented data are discussed in light of the processes occurring in cambial rays that lead to the storied pattern formation, which in turn may affect the mechanical properties of the wood.

3

Nowe stwierdzenie Palpita vitrealis (ROSSI, 1794) (Lepidoptera: Crambidae) w południowo-zachodniej Polsce

63%

Myskow E. , Zawisza M.

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nr 3

4

Rola śmierci komórek drewna w sukcesie ewolucyjnym roślin drzewiastych

63%

Tulik M. , Myskow E.

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tom 159

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nr 05

EN

The paper describes the different types of cell death during the process of wood cell formation and terminological variety found in the literature concerned. The cell death referred to as programmed cell death (PCD), is genetically controlled and fundamental for the correct function of the whole organism of woody plants. The wood is mainly composed of the tracheary elements fulfil as conductors of water, fibers that provide the mechanical support and parenchyma cells playing an important role in the storage of water and reserve materials. The PCD of these elements constitutes the final stage of their differentiation and it is proceeded by: (i) cambial cell divisions, (ii) the enlargement of the cambial derivatives. The successive phase concerns (iii) deposition of secondary cell walls and its lignification. After that, the cell commences to digest protoplast, what means that each cell participates in the process of its own demise actively. However, the time and the sequence of the appearance of these phases are distinct among the woody cells. In the case of the tracheary elements the digestion of the protoplast occurs immediately after the tonoplast breakdown. Therefore, these cells are short−lived elements of wood. The life span of the fibers and the parenchyma cells is longer (from month for fibers and years in case of parenchyma cells). For the latter cells the positional information (distance from the cambium) and vicinity with short−lived tracheary elements are considered to be important for undergoing the process of death

5

Ontogenetic development of storied ray pattern in cambium of Hippophae rhamnoides L.

63%

Myskow E. , Zagorska-Marek B.

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nr 2

EN

Storied pattern, in the arrangement of both fusiform initials and the rays in cambium of Hippophae rhamnoides, develops in ontogeny relatively quickly and becomes clearly visible in terminal parenchyma of third and fourth annual ring. At first, anticlinal longitudinal divisions and restricted intrusive growth of fusiform initials lead to the formation of their characteristic horizontal tiers. Then, initiation of secondary rays, taking place rather within such tiers, not between them, makes possible the formation of storied ray pattern. New secondary rays originate most frequently from fusiform initials by their segmentation. This makes the appearance of ray tiers rather quick. However, the high order in the structure of cambium of Hippophae rhamnoides is also due to another, very curious and not known until now mechanism. It operates through limited in its range, thus highly controlled, vertical migration of rays on the cambial surface. This applies to asymmetrically positioned rays either primary, which are often originally sited "out of order" or secondary, initiated off-centre within the existing tiers. Excessively asymmetric rays, lying accidentally on the border between two neighbouring storeys, often undergo splitting and then the derivative rays move toward the centres of the storeys. Ray displacement is due to elimination of one or two of ray initial cells on one edge of the ray and simultaneous, multiple divisions adding new ray cells on the opposite edge.

6

Modraszek arion Phengaris arion (LINNAEUS, 1758) (Lepidoptera: Lycaenidae) w Sudetach - ponowne stwierdzenia po przeszło półwiecznej przerwie

51%

Malkiewicz A. , Strus K. , Myskow E.

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2015

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tom 18

7

Nowe stanowiska Ctenophora (Cnemoncosis) festiva MEIGEN, 1804 (Diptera: Tipulidae: Ctenophorinae) w Polsce

51%

Malkiewicz A. , Myskow E. , Bakowski M.

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nr 2

EN

Ctenophora festiva MEIGEN, 1804 belongs to saproxylic fauna. Its presence is connected with old forests and dying trees. It has been recorded in Poland for the second time and for the first time in Lower Silesia and Lubuskie provinces.

8

Potwierdzenie występowania Lycia zonaria (DEN. & SCHIFF.) (Lepidoptera: Geometridae) w Polsce

51%

Myskow E. , Zieleniewska M. , Zawisza M.

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nr 3

9

Nowe dane o rozsiedleniu wybranych gatunków poświętnikowatych (Insecta: Coleoptera: Scarabaeidae) w Polsce południowo-zachodniej

26%

Kadej M. , Zajac K. , Smolis A. , Malkiewicz A. , Tarnowski D. , Kania J. , Gil R. , Myskow E. , Sarnowski J. , Tyszecka K. , Jozefczuk J. , Rodziewicz M.

Przyroda Sudetów

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2013

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tom 16

10

Pachnica dębowa Osmoderma eremita s. l. (SCOPOLI, 1763) (Coleoptera, Scarabaeidae) w Polsce południowo-zachodniej

26%

Kadej M. , Zajac K. , Tarnawski D. , Malkiewicz A. , Gil R. , Tyszecka K. , Smolis A. , Myskow E. , Bobrowicz G. , Sarnowski J. , Zawisza M. , Jozefczuk J. , Gottfried T. , Zajac T.

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tom 17