scholarly journals Comparative carpology of the genus Cardiocrinum (Endl.) Lindl. (Liliaceae)

2020 ◽  
Vol 19 (2) ◽  
pp. 113-116
Author(s):  
P. S. Iovlev ◽  
A. V. F. Ch. Bobrov ◽  
N. S. Zdravchev ◽  
M. V. Kandidov
Keyword(s):  
Mature Fruit ◽  
Separate Genus ◽  
Transitional Type

The anatomy of pericarp of the mature fruit of Cardiocrinum cordatum (Thunb.) Makino was investigated.It was revealed, that the fruit of Cardiocrinum is a superior loculicidal capsule. The anatomy of its pericarp allow totreat the fruit as a transitional type of capsules between Lilium-type (the endocarp is lignified) and Galanthus-type (nolignification occurs in any zone of the pericarp). The peculiarities of pricarp structure of Cardiocrinum supports itstreatmend as a separate genus of the Liliaceae family.

The millipede family Nemasomatidae. With the description of a new genus, and a revision of Orinisobates (Diplopoda: Julida)

1985 ◽  
Vol 16 (1) ◽  
pp. 27-67 ◽  
Author(s):  
Henrik Enghoff
Keyword(s):  
United States ◽  
New Genus ◽  
Sister Group ◽  
Eastern United States ◽  
Altai Region ◽  
Separate Genus ◽  
Incertae Sedis ◽  
The Family ◽  
Group Relationships ◽  
Doubtful Species

AbstractThe family Nemasomatidae is redefined to include onty genera with all sterna secondarily free from pleurotergites. Comments are given on the included genera, viz., Antrokoreana, Basoncopus gen. n. (type-species B. filiformis sp. n.) (Kazakhstan), Dasynemasoma, Thalassisobates, Sinostemmiulus, Nemasoma, and Orinisobates. Isobates coiffaiti Demange, 1961 is synonymized with Thalassisobates littoralis (Silvestri, 1903). Orinisobates is revised and shown to include O. soror sp. n. (Kuril Islands), O. microthylax sp. n. (Kamchatka and Siberia), O. gracilis (Verhoeff, 1933) (NW China), O. sibiricus (Gulicka, 1963) (Altai region, Kazakhstan), O. kasakstanus (Lohmander, 1933) (Kazahkstan), O. nigrior (Chamberlin, 1943) (eastern United States), O. utus (Chamberlin, 1912) (northwestern United States), and O. expressus (Chamberlin, 1941) (northwestern United States and adjacent Canada). Mimolene oregona Chambertin, 1941 and M. sectile Loomis & Schmitt, 1971 are synonymized with O. expressus. A possible case of parthenogenesis in O. microthylax is recorded. Evidence is presented for the following sister-group relationships: Antrokoreana + (Basoncopus + (Dasynemasoma + (Thalassisobates + (Sinostemmiulus + (Orinisobates + Nemasoma))))). The position of Basoncopus is uncertain, and O. soror may belong in a separate genus and constitute the sister-group of Orinisohates + Nemasoma. If soror does belong in Orinisobates, it is the sister-group of all its congeners. The American species of Orinisobates are shown probably to constitute a monophyietic group. The family is suggested to have originated in the eastern Palearctic region, Orinisobates having invaded North America via the Bering Bridge. Doubtful species and species erroneously assoiciated with the Nemasomatidae are listed. The genera Okeanobates and Yosidaiulus are excluded from the family and referred to Okeanobatidae stat. n. in superfamily Blaniuloidea. The genera Trichonemasoma, Telsonemasoma, and Chelojulus are also excluded from the Nemasomatidae and relegated to Julida incertae sedis.

Investigation of Flow Dynamics Over Transitional-Type Microcavity

2018 ◽  
Vol 140 (7) ◽  
Author(s):  
Paulius Vilkinis ◽  
Nerijus Pedišius ◽  
Mantas Valantinavičius
Keyword(s):  
Turbulent Flow ◽  
Flow Regime ◽  
Recirculation Zone ◽  
Transitional Flow ◽  
Navier Stokes ◽  
Flow Topology ◽  
Rans Equations ◽  
Recirculation Flow ◽  
Turbulent Flow Regime ◽  
Transitional Type

Flow over a transitional-type cavity in microchannels is studied using a microparticle image velocimetry system (μPIV) and commercially available computational fluid dynamics (CFD) software in laminar, transitional, and turbulent flow regimes. According to experimental results, in the transitional-type cavity (L/h1 = 10) and under laminar flow in the channel, the recirculation zone behind the backward-facing step stretches linearly with ReDh until the reattachment point reaches the middle of the cavity at xr/L = (0.5 to 0.6). With further increase in ReDh, the forward-facing step lifts the reattaching flow from the bottom of the cavity and stagnant recirculation flow fills the entire space of the cavity. Flow reattachment to the bottom of the cavity is again observed only after transition to the turbulent flow regime in the channel. Reynolds-averaged Navier–Stokes (RANS) equations and large eddy simulation (LES) results revealed changes in vortex topology, with the flow regime changing from laminar to turbulent. During the turbulent flow regime in the recirculation zone, periodically recurring vortex systems are formed. Experimental and computational results have a good qualitative agreement regarding the changes in the flow topology. However, the results of numerical simulations based on RANS equations and the Reynolds-stress-baseline turbulence model (RSM-BSL), show that computed reattachment length values overestimate the experimentally obtained values. The RSM-BSL model underestimates the turbulent kinetic energy intensity, generated by flow separation phenomena, on the stage of transitional flow regime.

scholarly journals Transitional type of Castleman's disease manifested as the POEMS syndrome

2004 ◽  
Vol 61 (4) ◽  
pp. 439-444 ◽  
Author(s):  
Ilija Tomic ◽  
Goran Plavec ◽  
Olga Tasic ◽  
Aleksandar Ristanovic ◽  
Vlado Cvijanovic
Keyword(s):  
Lymph Nodes ◽  
Mediastinal Lymph Node ◽  
Poems Syndrome ◽  
Mediastinal Lymphadenopathy ◽  
Cell Type ◽  
Mixed Cell ◽  
Vascular Type ◽  
Disease Case ◽  
Transitional Type ◽  
Angiofollicular Hyperplasia

Background. Castleman?s disease is an atypical lymphoproliferative disorder characterized by angiofollicular hyperplasia of lymph nodes. Histologically it can be classified into a hyaline-vascular type, plasma-cell type, and transitional (mixed-cell) type, while clinically localized type has been classified as unicentric, or generalized (multicentric) form of the disease. Case report. This paper presents a 21 years old male patient with multicentric Castleman?s disease, a transitional (mixed-cell) type. The disease was manifested by fever, generalized enlargement of peripherial lymph nodes, breast glands enlargement, hyperemia of the face, and weakness of the lower extremities. We found mediastinal lymphadenopathy, pleural and pericardial effusions, sensorimotor peripherial neuropathy and polyclonal hypergammaglobulinemia. The simultaneous presence of these manifestations of the disease (sensomotor peripheral neuropathy, lymphadenopathy, effusions endocrinopathy, polyclonal gammaglobulinemia and skin changes) is indentified as POEMS syndrome. The diagnosis of Castleman?s disease was based on the results of histopathologic analysis of mediastinal lymph node biopsies after thoracotomy. The patient was treated with corticosteroids (prednisone 80 mg daily for 2 weeks followed by 60 mg daily). A partial response was achieved after 4 months of treatment. Conclusion. A transitional type of multicentric Castleman?s disease may be present itself as POEMS syndrome. The effect of corticosteroid therapy in this form of the disease is unpredictable.

scholarly journals The Santa Luz chromite-peridotite and associated mafic dykes, Bahia-Brazil: remnants of a transitional-type ophiolite related to the Paleoproterozoic (>2.1 Ga) Rio Itapicuru greenstone belt?

2007 ◽  
Vol 37 (S4) ◽  
pp. 28-39 ◽  
Author(s):  
Elson Paiva Oliveira ◽  
Mônica Escayola ◽  
Zorano Sergio Souza ◽  
Juliana Finoto Bueno ◽  
Marcelus Glaucus de Souza Araújo ◽  
...  
Keyword(s):  
Greenstone Belt ◽  
Mafic Dykes ◽  
Transitional Type

scholarly journals Does Transitional Type of Meningioma Indicate Recurrence Risk Alone?: A Case Report

2011 ◽  
Vol 21 (2) ◽  
pp. 99-102
Author(s):  
Mustafa Barutçuoğlu ◽  
Cüneyt Temiz ◽  
Aydın İşisağ ◽  
Mehmet Selçuki ◽  
Gülden Diniz
Keyword(s):  
Case Report ◽  
Recurrence Risk ◽  
Transitional Type

scholarly journals Concomitant phytonutrient and transcriptome analysis of mature fruit and leaf tissues of tomato (Solanum lycopersicum L. cv. Oregon Spring) grown using organic and conventional fertilizer

2019 ◽  
Author(s):  
Richard M Sharpe ◽  
Luke Gustafson ◽  
Seanna Hewitt ◽  
Benjamin Kilian ◽  
James Crabb ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Solanum Lycopersicum ◽  
Organic Fertilizer ◽  
Agricultural Practices ◽  
Organic Soil ◽  
Fertilizer Treatment ◽  
Tomato Genome ◽  
Mature Fruit ◽  
Solanum Lycopersicum L ◽  
Leaf Tissues

ABSTRACTEnhanced levels of antioxidants, phenolic compounds, carotenoids and vitamin C have been reported for several crops grown under organic fertilizer, albeit with yield penalties. As organic agricultural practices continue to grow and find favor it is critical to gain an understanding of the molecular underpinnings of the factors that limit the yields in organically farmed crops. Concomitant phytochemical and transcriptomic analysis was performed on mature fruit and leaf tissues derived from Solanum lycopersicum L. ‘Oregon Spring’ grown under organic and conventional fertilizer conditions to evaluate the following hypotheses. 1. Organic soil fertilizer management results in greater allocation of photosynthetically derived resources to the synthesis of secondary metabolites than to plant growth, and 2. Genes involved in changes in the accumulation of phytonutrients under organic fertilizer regime will exhibit differential expression, and that the growth under different fertilizer treatments will elicit a differential response from the tomato genome. Both these hypotheses were supported, suggesting an adjustment of the metabolic and genomic activity of the plant in response to different fertilizers. Organic fertilizer treatment showed an activation of photoinhibitory processes through differential activation of nitrogen transport and assimilation genes resulting in higher accumulation of phytonutrients. This information can be used to identify alleles for breeding crops that allow for efficient utilization of organic inputs.Significance statementOrganic fertilizer changes the expression of the tomato genome, induces photosynthetic stress which elicits higher production of secondary metabolites.

scholarly journals Comparative seed coat anatomy of the genus Wollemia (Araucariaceae)

2020 ◽  
Vol 19 (2) ◽  
pp. 134-139
Author(s):  
A. S. Timchenko ◽  
A. N. Sorokin ◽  
N. S. Zdravchev ◽  
A. V. F. Ch. Bobrov ◽  
M. S. Romanov
Keyword(s):  
Seed Coat ◽  
Progressive Type ◽  
The Family ◽  
Transitional Type ◽  
Seed Coats

The seed coat anatomy of Wollemia nobilis W. G. Jones, K. D. Hill et J. M. Allen was carried out. In theresult of analysis of transverse sections of seeds the sufficient parenchymatization of seed coats and their differentiationinto three morphogenetic zones – the exotesta, the mesotesta and the endotesta was revealed. Such characters of thespermoderm as differentiation of the mesotesta into several topographic zones, presence of resin cavities in mesotesta, aswell as the participation of both exotesta and mesotesta in making the wing are treated as the archaic ones. The seeds of W.nobilis are of transitional type between exomesotestal and the exotestal type (according to Corner's typology). In generalthe seed coat structure of W. nobilis fits into the divercity of seed coats structure in the family Araucariaceae and is treatedas a progressive type within the family.

scholarly journals Phytocenological Assessment of Vicia grandiflora Scop. on the Steppe Plateau (Azerbaijan)

2021 ◽  
Vol 7 (6) ◽  
Author(s):  
G. Nasibova
Keyword(s):  
Transitional Type ◽  
Young Old

Assessment of the cenopulations of the possessing of high fodder qualities Viciа grandiflora Scop. species of the Legume family (Fabaceae) have been shown in the paper. Changes in the ontogenesis of V. grandiflora species were analyzed, an increase in the number of subsenil and senile individuals was observed, also young, old, transitional cenopopulations types were identified, but juvenile and immature individuals were not found in some phytocenoses. Transitional type of studied populations was found (∆=0,31–0,52; ὠ=0,54–0,63). Only evolving vitality was observed under assessment of the dynamics of development population and one-way irreversible changes were observed. The obtained results indicating a decrease in the number and underdevelopment of the cenosis, confirmed the danger of extinction of Vicia grandiflora species on the territory of the Steppe plateau.

scholarly journals Influence of grape genotype, ripening season, seed trace size, and culture date on in ovule embryo development and plant formation

Bragantia ◽  
1995 ◽  
Vol 54 (2) ◽  
pp. 237-249 ◽  
Author(s):  
Celso V. Pommer ◽  
David W. Ramming ◽  
Richard L. Emershad
Keyword(s):  
Embryo Development ◽  
Embryo Culture ◽  
Embryo Rescue ◽  
Great Influence ◽  
Embryo Viability ◽  
Mature Fruit ◽  
Trace Length ◽  
Culture Time ◽  
Seedless Grape ◽  
Reduced Rate

Eighteen seedless grape genotypes differing in ripening season (early, mid and late) and in seed trace size (small, medium and large) were harvested at 6, 10, 14, 18 and 22 weeks past bloom (wpb). Using embryo rescue techniques it was studied if embryo do abort as the fruit matures and what percent embryos remain viable at later stages. The size of seed trace was also investigated to determine its influence on embryo viability during maturation. It was found that genotype have great influence on embryo culture traits. Late maturing genotypes showed fewer rescued embryos, germinated embryos and transplantable plants than early and mid season ones. The best culture time for grape embryo rescue is 6 and 10 wpb. At these dates, the largest number of embryos, germinated embryos and transplantable plants were obtained. Genotypes with the largest ratio for seed trace weight/seed trace length (i.e., largest density) showed the greatest tendency to have the largest number of ovules with embryos, more germinated embryos and more transplantable plants. The study also showed that it is possible to recover plants from mature fruit harvested late, although at a much reduced rate.

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