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Results for “ROSACEA”

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At least 577 records · Page 32Linked to original sources
PubMed2003

Developmental patterns of the invasive bramble (Rubus alceifolius Poiret, Rosaceae) in Réunion island: an architectural and morphometric analysis.

The aim of this study was to identify the developmental stages of Rubus alceifolius and to determine one or more characteristic morphological markers for each stage. The developmental reconstitution method used involved a detailed description of many individuals throughout the different stages of growth, from germination to the development of an adult shoot capable of fruiting. Results revealed that R. alceifolius passes through five developmental stages that can be distinguished by changes in several morphological markers such as internode length and diameter, pith diameter and plant shape. This analysis indicated that R. alceifolius has a heteroblastic developmental pattern, midway between that of a bush and a liana. Moreover, results showed that this species taps environmental resources early in its development, i.e. foliarization is high (the foliar component overrides the caulinary component) and an autotrophic stage is rapidly reached, whereas it 'explores' the environment during the adult stage, i.e. axialization is substantial (the caulinary component overrides the foliar component) and autotrophy occurs at a later stage. The morphological markers identified could benefit land-use managers attempting to control this species before it reaches its optimum developmental stage.

Plant Leaves↗
PubMedDate not supplied

Inheritance of the chloroplast genome in Sorbus aucuparia L. (Rosaceae).

Chloroplast DNA (cpDNA) inheritance was investigated in Sorbus aucuparia using progenies obtained from six controlled crosses between individuals of known haplotype. Polymerase chain reaction (PCR) amplification, followed by restriction analysis, was used to characterize 248 offspring for either of two polymorphic cpDNA fragments. All offspring exhibited the maternal haplotype, which indicates maternal inheritance of chloroplasts in S. aucuparia. Power analysis of the test showed that the frequency of paternal transmission of chloroplasts, if any, should not exceed 1.84% (with 99% confidence).

Chloroplasts↗
PubMed1997

Rosacea.

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Diagnosis, Differential↗
PubMed1987

Rosacea.

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Diagnosis, Differential↗
PubMed2000

Solid facial edema in a patient with rosacea.

We report a 53-year old man with symmetrical nonpitting edema, conjunctivitis, and acneiform eruptions on the face. Histopathological examination showed perifollicular lymphohistiocytic infiltration and telangiectasias in the upper dermis. Loosely aggregated non-caseating granulomas were scattered through the dermis; some of them were seen in the perifollicular regions. The patient was treated with fleroxacin (100 mg/day, orally) for two weeks with a marked reduction of both solid facial edema and periorbital edema.

Anti-Infective Agents↗