The role of rock mining for maintaining Dauco carotae-Crepidetum rhoeadifoliae Hejný et Grüll in Hejný et al. 1979 — a new to Poland plant association

2013 ◽  
Vol 8 (8) ◽  
pp. 799-812
Author(s):  
Sylwia Nowak ◽  
Arkadiusz Nowak
Keyword(s):  
Carbonate Mineral ◽  
Plant Association ◽  
Diagnostic Species ◽  
Verbascum Thapsus ◽  
Rare Elements ◽  
Bryum Argenteum ◽  
Melilotus Alba ◽  
Rock Mining ◽  
Extinct Taxon

AbstractThis work presents the Dauco carotae-Crepidetum rhoeadifoliae plant association, which is new to Poland. The association has been observed in industrial reclamation areas in the vicinity of carbonate mineral excavation sites in the central part of the Opole region. In the vast majority of cases, plots of this association developed in reclaimed areas. The majority of diagnostic species for the association was found within surveyed plots, including Verbascum thapsus, V. densiflorum and Bryum argenteum. Taxa characteristic of the alliance were also constantly present, i.e. Daucus carota, Melilotus alba, M. officinalis, Echium vulgare and Erysimum hieracifolium. This association belongs to the rarest syntaxa in Poland included in the Dauco-Melilotion alliance of ruderal communities with a predominance of hemicryptophytes, therophytes and perennials. The main diagnostic species — Crepis rhoeadifolia, belongs to very rare elements of Polish flora. It has been observed only in the southern part of the country in approx. 20 sites. Crepis rhoeadifolia had not been observed in Silesia for approx. 40 years, which is why it was considered to be an extinct taxon in this region. Rediscovering of the species allowed for diagnosing the Dauco-Crepidetum rhoeadifoliae association. This association is an example of a pioneer phytocenosis of, most likely, anthropogenic origin in Silesia.

scholarly journals The role of ocean acidification in systemic carbonate mineral suppression in the Bering Sea

2011 ◽  
Vol 38 (19) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jeremy T. Mathis ◽  
Jessica N. Cross ◽  
Nicholas R. Bates
Keyword(s):  
Ocean Acidification ◽  
Bering Sea ◽  
Carbonate Mineral ◽  
The Bering Sea

The role of carbonate mineral dissolution in turbidity reduction in an oil sands end pit lake

Chemosphere ◽  
2021 ◽  
Vol 271 ◽  
pp. 129876
Author(s):  
Ho Yin Poon ◽  
Heidi L. Cossey ◽  
Amy-lynne Balaberda ◽  
Ania C. Ulrich
Keyword(s):  
Oil Sands ◽  
Mineral Dissolution ◽  
Carbonate Mineral ◽  
Pit Lake

scholarly journals The Expression of MaEXP1, a Melilotus alba Expansin Gene, Is Upregulated During the Sweetclover-Sinorhizobium meliloti Interaction

2004 ◽  
Vol 17 (6) ◽  
pp. 613-622 ◽  
Author(s):  
Walter Giordano ◽  
Ann M. Hirsch
Keyword(s):  
Cell Wall ◽  
Sinorhizobium Meliloti ◽  
Plant Cell Wall ◽  
Nodule Development ◽  
Northern Analysis ◽  
Degenerate Primers ◽  
Melilotus Alba ◽  
Expansin Gene ◽  
Rapid Amplification

Expansins are a highly conserved group of cell wall-localized proteins that appear to mediate changes in cell wall plasticity during cell expansion or differentiation. The accumulation of expansin protein or the mRNA for specific expansin gene family members has been correlated with the growth of various plant organs. Because expansin proteins are closely associated with plant cell wall expansion, and as part of a larger study to determine the role of different gene products in the legume-Rhizobium spp. symbiosis, we investigated whether a Melilotus alba (white sweetclover) expansin gene is expressed during nodule development. A cDNA fragment encoding an expansin gene (EXP) was isolated from Sinorhizobium meliloti-inoculated sweetclover root RNA by reverse-transcriptase polymerase chain reaction using degenerate primers, and a full-length sweetclover expansin sequence (MaEXP1) was obtained using 5′ and 3′rapid amplification of cDNA end cloning. The predicted amino acid of the sweetclover expansin is highly conserved with the various α-expansins in the GenBank database. MaEXP1 contains a series of eight cysteines and four tryptophans that are conserved in the α-expansin protein family. Northern analysis and whole-mount in situ hybridization analyses indicate that MaEXP1 mRNA expression is enhanced in roots within hours after inoculation with S. meliloti and in nodules. Western and immunolocalization studies using a cucumber expansin antibody demonstrated that a cross-reacting protein accumulated in the expanding cells of the nodule.

THE INFLUENCE OF PLANT CHEMICALS ON THE FEEDING BEHAVIOR, DEVELOPMENT, AND SURVIVAL OF THE TWO-STRIPED GRASSHOPPER, MELANOPLUS BIVITTATUS (SAY), ACRIDIDAE: ORTHOPTERA

1967 ◽  
Vol 45 (3) ◽  
pp. 305-319 ◽  
Author(s):  
K. L. S. Harley ◽  
A. J. Thorsteinson
Keyword(s):  
Feeding Behavior ◽  
Adult Stage ◽  
Plant Association ◽  
Lethal Effects ◽  
Behavior Development ◽  
Plant Chemicals ◽  
Survival And Growth ◽  
Polyphagous Insect ◽  
Secondary Plant

An investigation of the effects of 20 secondary plant chemicals on the survival, development, and feeding behavior of a polyphagous insect, Melanoplus bivittatus (Say), was made using chemically defined synthetic diets.When added to the basic diet, only one chemical, tigogenin, showed unqualified stimulatory effects on growths. Nornicotine dipicrate, solanine, tomatine, digitonin, and saponin caused all nymphs to die before they attained the adult stage, and santonine, indican, diosgenin, hecogenin, and lupinine produced leas severe toxic effects. Very few of the chemicals which permitted survival affected adult weight.Feeding preference experiments showed that some chemicals reduced feeding but none increased it. If it is assumed that the role of secondary plant chemicals in the feeding behavior of M. bivittatus is to indicate to the insect which diets to discriminate against, anomalies existed in that diets containing innocuous chemicals were sometimes discriminated against, whereas diets containing some chemicals producing lethal effects were accepted.Steroid chemicals exhibited the greatest effects on feeding behavior, survival, and growth, and it is postulated that the distribution of plant steroids may provide an insect – food plant association mechanism.

scholarly journals “The Assistance of Science and Capital”: The Role of Technology in Establishing B.C.’s Hard Rock Mining Industry, 1876-1906

2009 ◽  
Vol 16 (2) ◽  
pp. 165-192
Author(s):  
Jeremy Mouat
Keyword(s):  
Hard Rock ◽  
Mining Industry ◽  
Good Deal ◽  
Transitional Period ◽  
Mining Companies ◽  
Hard Rock Mining ◽  
Rock Mining ◽  
Mining And Smelting ◽  
Smelting Complex

ABSTRACT This article examines the role of technology and applied science in British Columbia's hard rock mining industry. It focuses on a transitional period, from the decline following the gold rushes of the mid century through to the emergence in 1906 of Cominco, a vertically-integrated mining and smelting complex typical of the large mining companies of the twentieth century. Although many contemporary observers held a naive faith in the possibilities of science and technology, the article argues that the transition to "modern mining" was more difficult and more complex than they had anticipated and its outcome a good deal more ambivalent.

scholarly journals Flannel and beggar’s blanket: metaphors or conceptual blends? A cognitive analysis of selected common names of mullein in English

2021 ◽  
Vol 33 ◽  
pp. 131
Author(s):  
Agnieszka Bożena Mierzwińska-Hajnos
Keyword(s):  
Cognitive Linguistics ◽  
Meaning Construction ◽  
Integration Theory ◽  
Cognitive Analysis ◽  
Conceptual Integration ◽  
Verbascum Thapsus ◽  
Semiotic Approach ◽  
Metaphor Theory ◽  
Conceptual Integration Theory

The paper offers a cognitive analysis of selected common English names of mullein (Verbascum thapsus L.) motivated by the appearance of the plant. While analyzing such names as flannel and beggar’s blanket, the author strives to portray the way they are conceptualized by recalling Conceptual Metaphor Theory and Conceptual Integration Theory, in particular the Brandt and Brandt six-space model of conceptual integration, also known as a cognitive-semiotic approach to metaphor. In the course of the analysis, the author also makes reference to those aspects which seem indispensable from the standpoint of cognitive linguistics, viz. (i) the role of human experience and embodied thought in the conceptualization process, (ii) the dynamic and context-dependent meaning construction and (iii) the role of linguistic worldview in decoding meaning.

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