scholarly journals Classification and Characterization of the Manoor Valley’s (Lesser Himalaya) Vegetation from the Subtropical-Temperate Ecotonal Forests to the Alpine Pastures along Ecological Variables

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 87
Author(s):  
Inayat Ur Rahman ◽  
Aftab Afzal ◽  
Zafar Iqbal ◽  
Mashail Nasser Alzain ◽  
Al-Bandari Fahad Al-Arjani ◽  
...  
Keyword(s):  
Plant Species ◽  
Plant Communities ◽  
Leaf Size ◽  
Environmental Drivers ◽  
Lesser Himalaya ◽  
Size Spectra ◽  
Different Types ◽  
Different Seasons ◽  
Evolutionary Aspects

Plant species are distributed in different types of habitats, forming different communities driven by different sets of environmental variables. Here, we assessed potential plant communities along an altitudinal gradient and their associations with different environmental drivers in the unexplored Manoor Valley (Lesser Himalaya), Pakistan. We have implemented various ecological techniques and evaluated phytosociological attributes in three randomly selected 50 m-transects within each stand (a total of 133) during different seasons for four years (2015–2018). This phytosociological exploration reported 354 plant species representing 93 different families. The results revealed that the Therophytic life form class dominated the flora, whereas Nanophyll dominated the leaf size spectra. There were a total of twelve plant communities identified, ranging from the lowest elevations to the alpine meadows and cold deserts. The maximum number of species were found in Cedrus–Pinus–Parrotiopsis community (197 species), in the middle altitudinal ranges (2292–3168 m). Our results showed that at high altitudes, species richness was reduced, whereas an increase in soil nutrients was linked to progression in vegetation indicators. We also found different clusters of species with similar habitats. Our study clearly shows how altitudinal variables can cluster different plant communities according to different microclimates. Studies such as ours are paramount to better understanding how environmental factors influence ecological and evolutionary aspects.

scholarly journals Floristic diversity, biological spectrum of lower Tanawal, KP, Pakistan

2019 ◽  
Vol 9 (4) ◽  
pp. 505-514
Author(s):  
B. Adeela ◽  
I. Zafar ◽  
M. S. Ghulam ◽  
H. Manzoor ◽  
U. R. R. Inayat
Keyword(s):  
Plant Species ◽  
Life Form ◽  
Growth Form ◽  
Floristic Composition ◽  
Leaf Size ◽  
Floristic Diversity ◽  
Size Spectra ◽  
Field Surveys ◽  
Different Seasons ◽  
Biological Spectrum

Field surveys were carried out to evaluate the floristic diversity and biological spectrum of Lower Tanawal, District Abbottabad in different seasons during 2016-2018. This study area was divided into 80 stands on the basis of physiognomy of the vegetation. Life form classes and leaf spectra were classified following Raunkiers methodology. In total, 286 plant species belonging to 86 families were recorded, out of which herbaceous growth form dominated the study area with 187 species, followed by shrub with 54 species. Among all 86 families, Asteraceae was found to be the most dominant family with 25 species, followed by Fabaceae with 24 species and Rosaceae with 20 species. Based on life form classes, Therophytic life form was the leading class with 113 species (39.5104%), followed by Nanophanerophytes with 45 species (15.7342%). In leaf size spectra, Microphylls dominated the flora with 88 species (30.7692%), followed by Mesophyll with 81 species (28.3216%). This study shows the complete floristic composition that may be important as reference work for future ethnobotanical, ecological and conservational studies.

scholarly journals KEANEKARAGAMAN JENIS TUMBUHAN MASA LAMPAU DI SITUS PEMUTERAN, KABUPATEN BULELENG, PROVINSI BALI (Kajian berdasarkan analisis palinology)

2011 ◽  
Vol 31 (1) ◽  
pp. 12-30
Author(s):  
Vita Vita
Keyword(s):  
Plant Species ◽  
Plant Communities ◽  
Environmental Conditions ◽  
Fossil Pollen ◽  
Plant Tolerance ◽  
The Past ◽  
Soil Sediment ◽  
The Family ◽  
Different Types ◽  
Excavation Site

A variety of plant species that exist today reflect the diversity of plant species as well as how pre-existing or in the past, the area along the environmental conditions are not much changed significantly. Plant communities in a region will illustrate the diversity of plant species tolerant to environmental conditions in the area. The power plant tolerance to different environmental factors will lead to different types of plants that live in the area By using HF method and Acetolysis, then the results of the identification of fossil pollen (pollen analysis) that has been done specifically on a sample of soil /sediment from the findings of pottery, as well as the box has been opened at the excavation site Pemuteran, Buleleng Regency, Bali Province randomly, especially in layer B in test pit 4 and 5, the types derived from fossil pollen from plants derived from plants that are useful in the family Compositae, Poaceae, Malvaceae and Papilionaceae. In addition, there is also a pollen that is not available on the site around Pemuteran, such as the family Pinaceae, Fagaceae, Daphnae, Sequoia, Geraniaceae, Cupressus.

scholarly journals Life forms, leaf size spectra, regeneration capacity and diversity of plant species grown in the Thandiani forests, district Abbottabad, Khyber Pakhtunkhwa, Pakistan

2018 ◽  
Vol 25 (1) ◽  
pp. 94-100 ◽  
Author(s):  
Waqas Khan ◽  
Shujaul Mulk Khan ◽  
Habib Ahmad ◽  
Abdulaziz A. Alqarawi ◽  
Ghulam Mujtaba Shah ◽  
...  
Keyword(s):  
Plant Species ◽  
Leaf Size ◽  
Life Forms ◽  
Regeneration Capacity ◽  
Size Spectra ◽  
Khyber Pakhtunkhwa

scholarly journals FLORISITIC COMPOSITION AND ECOLOGICAL CHARACTERISTICS OF FLORA OF TEHSIL SARI NAURANG, DISTRICT LAKKI MARWAT PAKISTAN

2021 ◽  
Vol 27 (3) ◽  
pp. 263-275
Author(s):  
Shabir Ahmad ◽  
FAWAD KHAN ◽  
ZAHIR MUHAMMAD ◽  
KHUSHDIL KHAN ◽  
MUHAMMAD JAMIL KHAN ◽  
...  
Keyword(s):  
Plant Species ◽  
Floristic Composition ◽  
Leaf Size ◽  
Climatic Conditions ◽  
Floristic Diversity ◽  
Dominant Class ◽  
Ecological Characteristics

The present study was carried out to determine the floristic composition and ecological characterization of the flora of tehsil Sarai Naurang. The floristic diversity of the plant consists of 143 species belonging to 47 different families having 42 dicots and 05 monocots. Poaceae were comprised as the dominant families containing 18 species followed by Brassicaceae, Fabaceae, Asteraceae and Solanaceae. Therophytes were dominant class having 89 species (62.23%) followed by Microphanerophytes 19 species (13.28%), Hemicryptophytes 13 species (9.09%),Chamaephytes 8 species (5.59%), Geophytes 7 species (4.89%), Nanophanerophytes 6 species (4.19%) and Megaphanerophytes have 1 species (0.69%). Leaf size of most plant species was reduced indicating an adaptation to arid climatic conditions. The leaf size showed that Nanophylls size were the dominant followed by Microphyll (40 species (27.97%), Leptophyll (34 species (23.77%), mesophyll (15 species (10.48%), megaphyll (2 species( 1.39%) and macrophyll 1 species (0.69%).

Electron microscopic characterization of diamond thin films and substrates for diamond heteroepitaxial growth

1989 ◽  
Vol 47 ◽  
pp. 592-593
Author(s):  
J.B. Posthill ◽  
R.P. Burns ◽  
R.A. Rudder ◽  
Y.H. Lee ◽  
R.J. Markunas ◽  
...  
Keyword(s):  
Thin Films ◽  
Wide Band ◽  
Deposition Process ◽  
Heteroepitaxial Growth ◽  
Electron Microscopic ◽  
Wide Band Gap ◽  
Lattice Matching ◽  
Different Types ◽  
Diamond Thin Films

Because of diamond’s wide band gap, high thermal conductivity, high breakdown voltage and high radiation resistance, there is a growing interest in developing diamond-based devices for several new and demanding electronic applications. In developing this technology, there are several new challenges to be overcome. Much of our effort has been directed at developing a diamond deposition process that will permit controlled, epitaxial growth. Also, because of cost and size considerations, it is mandatory that a non-native substrate be developed for heteroepitaxial nucleation and growth of diamond thin films. To this end, we are currently investigating the use of Ni single crystals on which different types of epitaxial metals are grown by molecular beam epitaxy (MBE) for lattice matching to diamond as well as surface chemistry modification. This contribution reports briefly on our microscopic observations that are integral to these endeavors.

Characterization of Different Types of Biomass Wastes Using Thermogravimetric and ICP-MS Analyses

2020 ◽  
Vol 70 (12) ◽  
pp. 4594-4600
Keyword(s):  
Thermogravimetric Analysis ◽  
Food Industry ◽  
Wood Waste ◽  
Biomass Ash ◽  
Minor Elements ◽  
Ms Analysis ◽  
Icp Ms ◽  
Different Types

The purpose of this study was to characterize some types of biomass wastes resulted from different activities such as: agriculture, forestry and food industry using thermogravimetric and ICP-MS analyses. Also, it was optimized an ICP-MS method for the determination of As, Cd and Pb from biomass ash samples. The ICP-MS analysis revealed that the highest concentration of metals (As, Cd, Pb) was recorded in the wood waste ash sample, also the thermogravimetric analysis indicated that the highest amount of ash was obtained for the same sample (26.82%). The biomass wastes mentioned in this study are alternative recyclable materials, reusable as pellets and briquettes. Keywords: ash, biomass, ICP-MS, minor elements, TG

Characterization of different types of broiler bedding including dehydrated grass and their influence on production

2021 ◽  
Vol 92 (1) ◽  
Author(s):  
Bruna B. Przybulinski ◽  
Rodrigo G. Garcia ◽  
Maria Fernanda de C. Burbarelli ◽  
Claudia M. Komiyama ◽  
Deivid Kelly Barbosa ◽  
...  
Keyword(s):  
Different Types

scholarly journals Mutator-Suppressible Alleles of rough sheath1 and liguleless3 in Maize Reveal Multiple Mechanisms for Suppression

Genetics ◽  
2000 ◽  
Vol 154 (1) ◽  
pp. 437-446 ◽  
Author(s):  
Lisa Girard ◽  
Michael Freeling
Keyword(s):  
Untranslated Region ◽  
Mutant Allele ◽  
Negative Regulation ◽  
Wild Type ◽  
Knox Gene ◽  
Transcript Accumulation ◽  
Mu Suppression ◽  
Different Types ◽  
Rna Blot Analysis

Abstract Insertions of Mutator transposons into maize genes can generate suppressible alleles. Mu suppression is when, in the absence of Mu activity, the phenotype of a mutant allele reverts to that of its progenitor. Here we present the characterization of five dominant Mu-suppressible alleles of the knox (knotted1-like homeobox) genes liguleless3 and rough sheath1, which exhibit neomorphic phenotypes in the leaves. RNA blot analysis suggests that Mu suppression affects only the neomorphic aspect of the allele, not the wild-type aspect. Additionally, Mu suppression appears to be exerting its effects at the level of transcription or transcript accumulation. We show that truncated transcripts are produced by three alleles, implying a mechanism for Mu suppression of 5′ untranslated region insertion alleles distinct from that which has been described previously. Additionally, it is found that Mu suppression can be caused by at least three different types of Mutator elements. Evidence presented here suggests that whether an allele is suppressible or not may depend upon the site of insertion. We cite previous work on the knox gene kn1, and discuss our results in the context of interactions between Mu-encoded products and the inherently negative regulation of neomorphic liguleless3 and rough sheath1 transcription.

scholarly journals Engineering nucleosomes for generating diverse chromatin assemblies

2021 ◽  
Author(s):  
Zenita Adhireksan ◽  
Deepti Sharma ◽  
Phoi Leng Lee ◽  
Qiuye Bao ◽  
Sivaraman Padavattan ◽  
...  
Keyword(s):  
Dynamic Properties ◽  
Dna Nanostructures ◽  
Macromolecular Assemblies ◽  
Maximum Resolution ◽  
Different Types ◽  
Chromatin Structural ◽  
Dna Fragment

Abstract Structural characterization of chromatin is challenging due to conformational and compositional heterogeneity in vivo and dynamic properties that limit achievable resolution in vitro. Although the maximum resolution for solving structures of large macromolecular assemblies by electron microscopy has recently undergone profound increases, X-ray crystallographic approaches may still offer advantages for certain systems. One such system is compact chromatin, wherein the crystalline state recapitulates the crowded molecular environment within the nucleus. Here we show that nucleosomal constructs with cohesive-ended DNA can be designed that assemble into different types of circular configurations or continuous fibers extending throughout crystals. We demonstrate the utility of the method for characterizing nucleosome compaction and linker histone binding at near-atomic resolution but also advance its application for tackling further problems in chromatin structural biology and for generating novel types of DNA nanostructures. We provide a library of cohesive-ended DNA fragment expression constructs and a strategy for engineering DNA-based nanomaterials with a seemingly vast potential variety of architectures and histone chemistries.

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