Wyniki wyszukiwania - Biblioteka Nauki

1

Morphological and anatomical investigations of the species Furcellaria fastigiata (Huds.) Lam. from Puck Bay

100%

Adamkiewicz-Chojnacka B.

Oceanologia

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1983

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tom 16

2

Leaf anatomical adaptation under early drought stress of sugarcane cultivars – KKU-1999-02 and KKU-1999-03

72%

Taratima W. , Ritmaha T. , Jongrungklang N. , Maneerattanarungroj P.

Acta Agrobotanica

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2021

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tom 74

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nr 1

3

Biochemical, mineral and anatomical characteristics of the olive tree cv. Chetoui growing in several Tunisian areas

58%

Mansour-Gueddes S. B. , Saidana D. , Cheraief I. , Dkhilali M. , Braham M.

Acta Scientiarum Polonorum. Hortorum Cultus

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2018

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tom 17

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nr 2

EN

To tolerate harsh climatic conditions, olive tree Chetoui has developed some anatomic, physiologic and biochemical mechanisms. The aim of this study was to determine the indicators of stress in leaves, stems and roots growing under various climatic conditions. To protect against stress conditions this cultivar increased cuticle thickness, protective structures and building parenchyma tissues of leaves, woods and roots from the North to the South. The volatile compounds, extracted from northern and southern Chetoui leaves and roots, were analyzed by GC-FID and GC-MS. Great changes in volatiles were illustrated in the studied organs, by enrichment in phenolics and fatty acids for leaves and in hydrocarbons for roots of southern Chetoui. Also, a reduction in terpenes, alcohols and carbonylic compounds was noted in both southern samples. Moreover, minerals of all organs of Chetoui, varied in content and allocation, but their levels are the highest in leaves. The changes in volatiles might be affected by changes in the mineral elements uptake or accumulation under environment stress. A significant correlation was noted between phenolic compounds and sodium, nitrogen, and calcium contents. However, terpenoids was highly correlated with phosphorus content for all organs and studied areas. The detection of new volatiles, anatomical and mineral changes seem to be efficient indicators of adaptation of Chetoui to environment stress conditions.

4

Variability of needle characters of Pinus mugo Turra populations in the Karkonosze Mountains in Poland

58%

Sobierajska K. , Boratynska K.

Dendrobiology

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2008

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tom 59

41-49

EN

The basic aim of the work was to widen the knowledge about variation of Pinus mugo in the Karkonosze (Giant) Mountains and verification of provenance of several, probably planted populations on that basis. Seven populations were sampled, four on hardly accessible precipices of glacial cirques as natural, and three on the topical, mostly plane or only slightly in clined parts of the mountains as potentially alien ones. The variation of the needles was biometrically analyzed in respect of 23 morphological and anatomical characters. Measurement data were subject of multivariate statistical analyses. Results call attention on rather continuous variability of P. mugo in the Karkonosze Mts. The differences among samples were found as relatively low and no direct connections have been detected between variation and provenance from precipices versus plane sites.

5

Preservation of features of anatomical polymorphism of Deschampsia antarctica É. Desv. (Poaceae) during in vitro clonal reproduction

58%

Nuzhyna N. , Kunakh V. , Poronnik O. , Parnikoza I.

Acta Agrobotanica

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2021

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tom 74

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nr 1

6

Morphological, anatomical and cytological characteristics of spontaneous hybrid Pyrus x myloslavensis

58%

Antkowiak W. , Maciejewska-Rutkowska I. , Jedrzejczyk I. , Wojciechowski A.

Dendrobiology

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2016

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tom 75

EN

Pyrus ×myloslavensis is a hybrid with intermediate characteristics of leaves and fruits inherited from its parental species P. salicifolia and P. communis. The aim of this study was to determine whether these intermediate nature of this taxon would be visible in the pollen and seed anatomy and morphology. In addition, the authors evaluated self-compatibility and crossability based on the observation of pollen tube growth. The investigations were carried out using light, fluorescence and electron microscopies and flow cytometer. Based on pollen and seed morphology the current study confirmed a hybrid origin of the investigated taxon. Especially, pollen grains had most features similar to both parental species. In respect to epidermal micromorphology, the seeds of P. ×myloslaviensis were like P. salicifolia, but anatomical structure of the seed coat of the hybrid was more consistent with P. communis. The data obtained from the current experiment showed that P. ×myloslavensis was self-incompatible and cross-compatible only with one of four tested P. communis cultivars (‘Conference’) and with P. salicifolia. In turn, the average genome size of the hybrid was smaller than putative parents.

7

The impact of industrial pollution on the stem anatomical characteristics of woody plant undergrowth in the city of Dnipro, Ukraine

51%

Iusypiva T. , Miasoid G.

International Letters of Natural Sciences

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2017

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tom 65

EN

The paper examines the influence of industrial emissions of sulphur (IV) and nitrogen (IV) oxides on the percentage of stem anatomical characteristics of the autochthonous woody plant species undergrowth of Acer platanoides L. and Fraxinus excelsior L. in the southern industrial zone of the city of Dnipro (Ukraine). It is ascertained, that the ratio of the primary cortex share to the central cylinder share does not change in the stems of annual shoots of the both studied woody plant species when they are exposed to the influence of the toxic gases. However, there are significant changes in the ratio of shares of histological elements in the undergrowth stems of F. excelsior. The use of both absolute and relevant values of anatomic parameters of the plant vegetative organs is needed to analyse the woody plants resistance to technogenic pollution of the environment.