scholarly journals Inflorescence and flower development in the Hedychieae (Zingiberaceae): Hedychium

1997 ◽  
Vol 75 (4) ◽  
pp. 581-594 ◽  
Author(s):  
Bruce K. Kirchoff
Keyword(s):  
Key Words ◽  
Flower Development ◽  
Developmental Period ◽  
Relative Timing ◽  
Flower Structure ◽  
Hedychium Coronarium ◽  
Mature Flower ◽  
The Common ◽  
Sequential Formation

Flower organogenesis in Hedychium gardnerianum and Hedychium coronarium begins with the sequential formation of the sepals on a rounded–triangular apex. Growth in three regions of the apex, inside the sepals, produces three common petal – inner androecial primordia. Intercalary growth below and between these primordia produces a floral cup, the site of gynoecial formation. The common primordia separate to form petals and inner androecial members. After separation, the anterior inner androecial members fuse to form the labellum. The posterior member forms the polleniferous stamen. Up to this point in development, the flowers of H. coronarium are slightly ahead of those of H. gardnerianum. However, in H. gardnerianum, initiation of the two thecae of the stamen occurs immediately following the separation of the common primordia, while thecae formation in H. coronarium is slightly delayed. These results show that the relative timing of developmental events can vary even over a short developmental period. Formation of the outer androecium takes place at the apices of a triangle formed by the inner androecial members. The anterior outer androecial member aborts soon after formation, whereas the posterior outer androecial members form the two petaloid staminodes that are found on the lateral sides of the labellum in the mature flower. Key words: flower development, flower structure, inflorescence, stamen, Zingiberaceae, Hedychium.

HISTOPATHOLOGY OF THE PIGMENTED TUMORAL-LIKE LESIONS OF THE SKIN AT HUE HOSPITAL OF MEDICINE AND PHARMACY UNIVERSITY

2018 ◽  
Vol 8 (4) ◽  
pp. 65-69
Author(s):  
Mao Nguyen Van ◽  
Dong Tran Nam
Keyword(s):  
Key Words ◽  
Definitive Diagnosis ◽  
The Other ◽  
Cell Tumour ◽  
Cross Sectional ◽  
Skin Tumour ◽  
Clinical Appearance ◽  
The Face ◽  
The Common ◽  
Difficult Cases

Background: Pigmented tumour of the skin is one of the common tumour in human including the benign pigmented tumours (more common) called Nevi tumours and the malignant one called melanoma which was less frequent but the most poor in prognosis. In addition, the others not belonging to these group had the same clinical appearance, so the application of histopathology and immunohistochemistry for the definitive diagnosis was indespensible. Objectives: 1. To describe the macroscopic features of the pigmented tumoral-like lesions; 2. To classify the histopathologic types of the pigmented cell tumours and the other pigmented tumours of the skin. Materials and Method: Cross-sectional research on 55 patients diagnosed as pigmented tumoral lesions by clinician, then all definitively diagnosed by histopathology combining the immunohistochemistry in difficult cases. Results: There was no difference in gender, the disease was discovered most common in adult, especially with the age over 51 years old (58.1%). the most region located was in the face accounting for 60%, following the trunk and limbs (14.6%, 12.8% respectively). All 3 malignant melanomas happened in foot. The most common color of the lesions was black (65.4%), the other ones were rose, grey and blue. Histopathology and immunohisthochemistry showed that the true pigmented cell tumours were 52.6% encompassing benign ones (Nevi tumour) (41.8%), melanoma (5.4%) and lentigo (5.4%). 47.4% was not the true pigmented cell tumour including pigmented basocellular carcinoma (36.4%) and the others less common as histiofibromas, acanthoma and papilloma. Conclusion: the pigmented tumoral-like lesions of the skin could be the true pigmented cell tumours and the others, so the application of the histopathology and the immunohistochemistry after the clinical discovery helps to determine and classify the disease definitely and for the best orientation of treatment as well. Key words: skin tumour, benign pigmented tumour (Nevi), malignant pigmented tumour (melanoma), pigmented basocellular carcinoma

EVALUATING THE RESULTS OF SEPTOPLASTY AND PARTIAL INFERIOR TURBINOPLASTY

2017 ◽  
pp. 46-52
Author(s):  
Thanh Thai Le ◽  
Phuong Nam Tran ◽  
Thi Ngan An Nguyen
Keyword(s):  
Key Words ◽  
Nasal Obstruction ◽  
Inferior Turbinate ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Grade Ii ◽  
The Common

Aims: To study outcomes of septoplasty and partial inferior turbinectomy (PIT) method, expecting leastsurgical equipment, good result, price rationalization. Methods: Prospective, cross-sectional study. Including 40 patients treated by septoplasty and PIT method. Assessment had been made after 3 months post-op. Results: The common symptoms were nasal obstruction (100%), headache (40%). The deformities of nasal septalwere deviation (42.5%), crest (30%). There were 67.5% of patients with severe bilateral hypertrophic inferior turbinate, mostly over grade II, enlargement both soft and bone parts (60%). After 3 months, the nasal obstruction and headache presented good or great results in 90% of patients, 93.7% of patients had straight nasal septaland 90% hadsmall inferior turbinate.VAS: patients’s contentment was 100%. Conclusions: The study showed that septoplasty and partial inferior turbinectomy presented good results with 87.5% after surgery and 90% after 3 months. Key words: septal deformity, hypertrophy inferior turbinate, septoplasty, partial inferior turbinectomy

Effect of High Temperatures on the Postharvest Flowering of Specialty Floral Crop Species

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 447f-448
Author(s):  
Millie S. Williams ◽  
Terri Woods Starman ◽  
James E. Faust
Keyword(s):  
United States ◽  
Heat Tolerance ◽  
Flower Development ◽  
Consumer Satisfaction ◽  
The United States ◽  
Plant Canopy ◽  
Flower Number ◽  
Flower Bud ◽  
Crop Species ◽  
Mature Flower

Flower growers experience decreased consumer satisfaction with plant species that cease flowering during the summer. The objective of this experiment was to characterize the heat tolerance of four specialty floral crop species in order to predict their summer performance in the different climatalogical regions of the United States. The effect of increasing temperatures on the duration of postharvest flower development was determined for Ageranthemum frutescens `Butterfly' and `Sugar Baby', Brachycome hybrid `Ultra', and Sutera cordata `Snowflake'. Plants were grown in a 18 °C greenhouse until marketable with foliage covering the container and flowers distributed evenly across the plant canopy. Plants were then placed in a phytotron to determine their heat tolerance. Temperature set points of 18, 23, 28, and 33 °C were delivered serially at 2-week intervals, starting at 18 °C. Plants were then returned to 18 °C after the 33 °C treatment. Immature flower bud, mature flower bud, flower and senesced flower numbers were collected once per week. Sutera `Snowflake', and Brachycome `Ultra' had the greatest flower number at the 23 °C temperature, decreasing in the 28 °C environment. Argeranthemum `Butterfly' and `Sugar Baby' had greatest flower number at 28 °C, but flowers were smaller and of lower quality than at 23 °C. Flower development of all cultivars ceased at 33 °C, but when plants were returned to the 18 °C production greenhouse, flower development resumed. According to normal average daily temperatures in Knoxville, Tenn., Ageranthemum frutescens `Butterfly' and `Sugar Baby' would flower until mid-June, while Brachycome hybrid `Ultra' and Sutera cordata `Snowflake' would flower until mid-May.

scholarly journals Transcriptome-Wide Analyses Provide Insights into Development of the Hedychium Coronarium Flower, Revealing Potential Roles of PTL

2020 ◽  
Author(s):  
Tong Zhao ◽  
Alma Piñeyro-Nelson ◽  
Qianxia Yu ◽  
Xiaoying Hu ◽  
Huanfang Liu ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Flower Development ◽  
Molecular Mechanisms ◽  
Expression Patterns ◽  
Floral Organ ◽  
Mrna In Situ Hybridization ◽  
Hedychium Coronarium ◽  
Organ Identity

Abstract Background:The flower of Hedychium coronarium possesses highly specialized floral organs: a synsepalous calyx, petaloid staminodes and a labellum. The formation of these organs is controlled by two gene categories: floral organ identity genes and organ boundary genes, which may function individually or jointly during flower development. Although the floral organogenesis of H. coronarium has been studied at the morphological level, the underlying molecular mechanisms involved in its floral development still remain poorly understood. In addition, previous works analyzing the role of MADS-box genes in controlling floral organ specification in some Zingiberaceae did not address the molecular mechanisms involved in the formation of particular organ morphologies that emerge later in flower development, such as the synsepalous calyx formed through intercalary growth of adjacent sepals. Results:Here, we used comparative transcriptomics combined with Real-time quantitative PCR and mRNA in situ hybridization to investigate gene expression patterns of ABC-class genes in H. coronarium flowers, as well as the homolog of the organ boundary gene PETAL LOSS (HcPTL). qRT-PCR detection showed that HcAP3 and HcAG were expressed in both the petaloid staminode and the fertile stamen. mRNA in situ hybridization showed that HcPTL was expressed in developing meristems, including cincinnus primordia, floral primordia, common primordia and almost all new initiating floral organ primordia.Conclusions:Our studies found that stamen/petal identity or stamen fertility in H. coronarium was not necessarily correlated with the differential expression of HcAP3 and HcAG. We also found a novel spatio-temporal expression pattern for HcPTL mRNA, suggesting it may have evolved a lineage-specific role in the morphogenesis of the Hedychium flower. Our study provides a new transcriptome reference and a functional hypothesis regarding the role of a boundary gene in organ fusion that should be further addressed through phylogenetic analyzes of this gene, as well as functional studies.

Common interests of parents and adolescents

2020 ◽  
Vol 45 (4) ◽  
pp. 124-132
Author(s):  
V. Kostromina ◽  
◽  
G. Kolesnikova ◽  
Keyword(s):  
Leisure Activities ◽  
Modern Society ◽  
Family Values ◽  
Positive Side ◽  
Family Leisure ◽  
Adults And Children ◽  
Common Interests ◽  
Personal Qualities ◽  
The Common ◽  
Sequential Formation

The article discusses the common interests of parents and adolescents, who have become significantly different in modern society with the advent of innovative technologies between the older and younger generations. The author analyzes the problem of underdeveloped forms of family leisure and take notice to the fact that in various types of leisure activities, the sequential formation of personal qualities of children such as independence, curiosity, organization, sociability, confidence, success and others is more effectively carried out. Family values are promoted by joint leisure, influencing the development of adolescents in socialization. The scientific works of scientists are analyzed, from which the conclusion about the common interests of adults and children follows. The types of family vacations at home and outside are consid it is worthwhile to form interests and traditions that unite adolescents and parents on the positive side. The author suggests synthesizing traditional and innovative forms of organizing family leisure activities in order to achieve common interests of parents and adolescents.

Abitare Spina 3

2009 ◽  
pp. 61-70
Author(s):  
Cristina Bianchetti ◽  
Anna Todros
Keyword(s):  
Key Words ◽  
Steel Production ◽  
Transformation Process ◽  
Public And Private ◽  
The Past ◽  
The Common ◽  
The Relationship

- Spina 3 is the old district of Turin steel production, it is an area of more than 1 million square metres, which, over the past fifteen years, has gone through a transformation process that radically reversed the relationship between public and private properties, in favour of the first ones. The outcome appears to be a space where it was possible to play freely with its elements, but where, at the end, it was generated a hard space, where the tracks of the person who live there are struggling to settle. The house, built from the market so rigidly and traditionally, became a symbol of the common choice to live in the new Turin.Key words living, practices, friches, space appropriation, space scheme, commonality.Parole chiave: abitare, pratiche, friches, appropriazione (dello spazio), disegno (dello spazio), comunanza.

Flower development inPisum sativum: From the war of the whorls to the battle of the common primordia

1999 ◽  
Vol 25 (3) ◽  
pp. 280-290 ◽  
Author(s):  
C. Ferr�ndiz ◽  
C. Navarro ◽  
M.D. G�mez ◽  
L.A. Ca�as ◽  
J.P. Beltr�n
Keyword(s):  
Flower Development ◽  
The Common

Intrabreed polymorphic information content of microsatellites in cattle and sheep

1998 ◽  
Vol 78 (3) ◽  
pp. 425-428 ◽  
Author(s):  
Fiona C. Buchanan ◽  
Tracey D. Thue
Keyword(s):  
Key Words ◽  
Information Content ◽  
Polymorphic Information Content ◽  
Livestock Species ◽  
The Common ◽  
Cattle And Sheep

Eight ovine and eleven bovine microsatellites were amplified in unrelated individuals from five breeds of sheep and cattle respectively. Polymorphic information content (PIC) was calculated for each breed. It was shown that the common practice of using genotypes from several breeds to calculate PIC for a livestock species can give misleading PIC values for a given breed. Key words: Microsatellite, polymorphic information content

Organogenesis in Triglochin striata

1979 ◽  
Vol 57 (13) ◽  
pp. 1418-1438 ◽  
Author(s):  
S. M. Lieu
Keyword(s):  
Vegetative Reproduction ◽  
Lateral Branch ◽  
Common Base ◽  
Mature Flower ◽  
The Common ◽  
Rates Of Growth ◽  
Differential Timing

The blanching pattern of Triglochin striata is simple and is similar to that of the Alismataceae with upright vegetative axes. The inflorescence is formed from the leaf-opposed product of apical bifurcation. There is, however, no morphologically distinct prophyll on the leaf-subtended continuation shoot. Vegetative reproduction is by sympodial stolons developing from irregularly distributed axillary buds.Floral development consists of the sequential initiation of alternating, trimerous whorls of floral appendages in acropetal succession: two whorls of tepals, two of stamens, and two of carpels (of which the first is abortive) in the typical monocotyledonous pattern. Differential timing and rates of growth of the inner tepals and outer stamens result in the former appearing to be located internal to the latter in the mature flower. Suppression of all but the lowermost median stamen as staminodes and extensive development of the lowermost median tepal, together resulting in zygomorphy of the flower, occurs frequently. The common base of the stamen and its opposing tepal is a result of subsequent intercalary upgrowth. The evidence does not support the interpretation of the flower of Triglochin as a reduced lateral branch of the inflorescence.

The common lowbush blueberry, Vaccinium angustifolium Aiton, may be an allopolyploid

1993 ◽  
Vol 73 (3) ◽  
pp. 889-891 ◽  
Author(s):  
K. Hokanson ◽  
J. Hancock
Keyword(s):  
Key Words ◽  
Goodness Of Fit ◽  
Chi Square ◽  
Vaccinium Angustifolium ◽  
Tetrasomic Inheritance ◽  
Lowbush Blueberry ◽  
Disomic Inheritance ◽  
The Common ◽  
Chi Square Tests

Data collected by Hall and Aadlers (1963) on the white-fruited trait were used to determine whether Vaccinium angustifolium is an allopolyploid displaying disomic inheritance or an autopolyploid with tetrasomic inheritance. Chi square tests for goodness-of-fit were non-significant for both models in all crosses, but the probabilities were higher in two of them for tetrasomic inheritance. Key words: Tetrasomic inheritance, disomic inheritance, allopolyploidy

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