Variability of the anatomical structure of Picea obovata Ledeb. Needles under the influence of emissions from the industrial zone of Kemerovo

Legoshchina, Olga; Neverova, Olga; Быков, А. А.

doi:10.1134/s1995425513050065

Cited by 6 publications

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“…Although most morphological and anatomical traits of needles are stable at species level, researchers have demonstrated that genetic variations existed within species in general. Some researchers have also discovered the adaption features of needle traits to the environment (Nobis et al 2012;Legoshchina et al 2013;Xing et al 2014); the microevolution within species and system evolution of pines by comparative morphology and anatomy (Boratynska and Lewandowska 2009;Androsiuk et al 2011;Nikolić et al 2013;Tiwari et al 2013). Analyzing geographic variations in needle traits will be helpful to understanding the ecological adaptability and micro-evolution of P. yunnanensis.…”

Section: Introductionmentioning

confidence: 97%

Genetic structure of needle morphological and anatomical traits of Pinus yunnanensis

et al. 2015

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Pinus yunnanensis Franch. is an particular conifer tree species in Yunnan-Guizhou plateau in southwest China. The morphological and anatomical traits of needles are important to evaluate geographic variation and population dynamics of conifer species. Seedlings from seven populations of P. yunnanensis were analyzed, looking at 22 morphological and anatomical needle traits. The results showed that variations among and within populations were significantly different for all traits and the variance components within populations were generally higher than that among populations in the most tested needle traits. The proportions of three-needle fascicle were significantly different among populations. The traits related to needle size in both morphology and anatomy were positive with latitude and negative with annual temperature and precipitation. Ratio indices, including mesophyll area/vascular bundle area, mesophyll area/resin canals area, vascular bundle area/resin canals area and mesophyll area/(resin canals area and vascular bundle area), were negatively correlated with elevation and positively correlated with the annual mean temperature, showing some fitness feature for the populations. Needle traits were more significantly correlated with longitude than with other four environmental factors. Needle length was significantly correlated with almost all environmental factors. First four principal components accounted for 81.596 % of the variation with eigenvalues [1; the differences among populations were mainly dependent on needle width, stomatal density, section areas of vascular bundle, total resin canals, and mesophyll, as well as area ratio traits. Seven populations were divided into three categories by Euclidean distance. Variations in needle traits among the populations have shown systematic microevolution in terms of geographic impact on P. yunnanensis. This study would provide empirical data to characterize adaptation and genetic variation of P. yunnanensis, which would be helpful for management of genetic resources and reasonable utilization of them in future.

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Section: Introductionmentioning

confidence: 97%

Genetic structure of needle morphological and anatomical traits of Pinus yunnanensis

et al. 2015

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“…Further, researchers have also discovered the adaptive features of needle traits in the environment. (Nobis et al 2012; Legoshchina et al 2013; Xing et al 2014). In our study, we found a high level of morphological variability among native and exotic species as well as within their population particularly needle traits like needle length that shows a higher degree of variation.…”

Section: Discussionmentioning

confidence: 99%

Morpho-anatomical variation and their phylogenetic implications in native and exotic species ofPinusgrowing in the Indian Himalayas

Singh¹,

Dixit²,

Srivastava³

et al. 2019

Preprint

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Pine is native to all continents and some oceanic islands of the northern hemisphere, chiefly in boreal, temperate or mountainous tropical regions; reaching its southernmost distribution below the equator in Southeast Asia. Pinus is divided into two subgenera, Strobus, and Pinus by the number of vascular bundles present in the needles. Comprehensive and detailed anatomy of needles in ten species of Pinus using nine anatomical traits was carried out. These morphological and anatomical traits supported the classification of the genus up to section level. It was observed that number of needles per fascicle varied along with other related traits such as thickness and width of vascular bundles, the diameter of resin ducts, the thickness of epidermis and thickness and width of endodermal cells that show remarkable variations among different species selected for the present study. The data can be used as a tool for identification and classification of Pinus upto genus and species level. We also found that similarity and differences in leaf anatomical traits supported the molecular phylogeny of Pinus conducted by several researchers.

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“…Важливу роль у вивченні адаптогенезу хвойних інтродуцентів мають дослідження анатомічної структури їх вегетативних органів, особливо хвої, яка забезпечує продуктивність окремих дерев і насадження в цілому (Bessonova & Iusypiva, 2018). В умовах антропогенного тиску довкілля спостерігаються зміни у товщині й будові гістологічних елементів вегетативних органів хвойних порід (Antonova & Stasova, 2002;Dmuchowski et al, 1998), і в першу чергу покривних і захисних тканин (Fedorkov, 2011;Legoshchina et al, 2013). Тому дослідження анатомічної структури хвої актуальні у контексті вивчення шляхів і механізмів адаптації голонасінних до промислових емісій і виявлення чутливих показників для фітоіндикації забруднення довкілля та стану хвойних рослин у техногенних зонах.…”

Section: дніпровський національний університет імені олеся гончара дunclassified

“…На думку автора, природний добір сприяє виживанню дерев з більш розвиненими покривними тканинами. Виявлено (Legoshchina et al, 2013) зниження в хвої P. obovata розмірів кутикули та гіподерми й одночасне зростання товщини епідерми еквівалентно рівню антропогенного навантаження.…”

Section: результати та їх обговоренняunclassified

“…Показано (Report .., 2005), що за екстремальних техногенних умов зростання дерев P. sylvestris протягом періоду вегетації відсоткове співвідношення площі хвоїнки до площі поперечного зрізу смоляних ходів не змінюється. За даними (Legoshchina et al, 2013), відбувається зниження площі мезофілу в хвої P. obovata по мірі наближення до промислової зони м. Кемерово. У хвоїнках рослин Picea abies (L.) H. Karst, що зростали вздовж автошляху, виявлено (Atkina, Vishnyakova, 2007) асиметрію в розташуванні провідного пучка, що може бути наслідком нестачі пластичних речовин (рослина багато ресурсів витрачає на подолання стресу).…”

Section: результати та їх обговоренняunclassified

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Bioecological analysis of Picea pungens needles in the deterioral conditions of the DTEK Prydniprovsk thermal power plant

Yusypiva

2018

ean

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Crucial for the research on adaptiogenesis of introduced coniferous species is the study the anatomical structure of their vegetative organs, especially the needles, which provides the productivity of individual trees and plantings in general. In conditions of anthropogenic pressure of the environment there are changes in the thickness and structure of the histological elements of vegetative organs of coniferous species, in the first place, protective tissues. Therefore, the study of the anatomical structure of the needles is relevant in the context of studying the ways and mechanisms of adaptation of gymnosperms to industrial emissions and the finding sensitive phytoindicators of environmental pollution and the condition of coniferous plants in man-made zones. However, today the chronic effect of phytotoxicants on the anatomical structure of needles is insufficiently studied. Ecological and anatomical studies of P. pungens in the conditions of the steppe zone of Ukraine for the effects of technogenesis are practically absent. Prydniprovsk TPP is the largest source of pollution in the city of Dnipro (Ukraine): its emissions make up 68,9 % of the volume of toxic compounds of all enterprises and transport facilities. The main pollutants of emissions from Prydniprovsk TPP are SO2, NO2, solids, CO. In order to reduce the negative impact of the TPP emissions, green plantations mainly from softwood are created around it, which purify the atmosphere and improve the environment throughout the year. In view of this, the purpose of the work is to analyse the state of morphological and anatomical indices of the Picea pungens Engelm f. glauca Beissn. needles under the influence of emissions from Prydniprovsk TPP. The research is conducted according to generally accepted methods (Zlobin et al., 2009; Albrechtova, 2003; Permjakov, 1988). It has been found that the length and weight of needles in experimental specimens of P. pungens decrease with respect to the values of these indices in plants of relatively pure zone; therefore, they are sensitive growth parameters to the action of environmental pollution. Nevertheless, the intensity of the growth of P. pungens needles does not change; therefore, it is not an informative feature for assessing the living conditions of the prickly fir in the industrial zone. The analysis of the micromorphological features of P. pungens needles showed resistance to anthropogenic pressure of its characteristics, such as width and thickness, although the area of needles decreases, which is associated with a significant decrease in the technogenic conditions of the environment of its length. In plants of P. pungens, growing on the territory adjacent to Prydniprovsk TPP, the size of the constituents of needles of P. pungens (epidermis and hypoderms), as well as the number, diameter and type of placement of resin passages in the mesophyll of the needles do not differ significantly from such indices in plants of relatively pure zone indicating the stability of these features and the resistance of the needles of the investigated species to the emissions of TPP. The thickness of the assimilation parenchyma from the adaxial side of the needle of P. pungens in the conditions of technogenesis increases. Among the histological elements of the needles P. pungens the greatest influence of man-made emissions is experienced by the components of the central conductive cylinder: the layer of endoderm thickens by 15,9 %, as compared with the control value, which we consider as an adaptive reaction of plants to man-made stress; the diameter of the central conductive cylinder and the thickness of xylem increases. Probably this is due to the need for better water supply of plants. Thus, in the conditions of technogenesis, stability of the histological characteristics and plasticity of the morphometric characteristics of the needles P. pungens were revealed. The formation of adaptive mechanisms of compensatory type in the needles of P. pungens under the influence of phytotoxicants was found: there is an increase of the size of the endoderm, mesophyll, xylem and the central conductive cylinder of the needles. It is shown that the ratio of particles of histological structures of needles (in %) to the action of pollutants of TPP remains practically unchanged. The informative test parameters for monitoring studies of the condition of coniferous plants in man-made zones (mass, length and area of needles) are suggested. Estimation of P. pungens resistance to the components of the thermal power plant's emissions as a medium-resistant species. It is recommended to use P. pungens in landscaping of contaminated areas.

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Variability of the anatomical structure of Picea obovata Ledeb. Needles under the influence of emissions from the industrial zone of Kemerovo

Cited by 6 publications

References 0 publications

Genetic structure of needle morphological and anatomical traits of Pinus yunnanensis

Genetic structure of needle morphological and anatomical traits of Pinus yunnanensis

Morpho-anatomical variation and their phylogenetic implications in native and exotic species ofPinusgrowing in the Indian Himalayas

Bioecological analysis of Picea pungens needles in the deterioral conditions of the DTEK Prydniprovsk thermal power plant

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