(2719) Proposal to conserve the name Betula humilis Schrank against B. humilis Marshall ( Betulaceae )

Phylogenetic relationships of Betula species (Betulaceae) based on nuclear ADH and chloroplast matK sequences.

The phylogenetic relationships within the genus Betula (Betulaceae) were investigated using a part of the nuclear ADH gene and DNA sequences of the chloroplast matK gene with parts of its flanking regions. Two well-supported phylogenetic groups could be identified in the chloroplast DNA sequence: one containing the three American species B. lenta, B. alleghaniensis, and B. papyrifera and the ot...

Evaluation of birch pollen sensitization profile in allergic rhinoconjunctivitis patients from Bucharest region using component-resolved diagnosis

Background In the Romanian flora, several species of the Betula genus are present, especially European white birch (B. pendula, syn. B. verrucosa) and downy birch (B. pubescens, syn. B. alba). Rare species are B. nana and B. humilis. In Southern Romania, the sensitization to Betulaceae pollen in patients with allergic rhinitis is less frequent than that to Poaceae pollen. The flowering season o...

Chloroplast biogenesis during rehydration of the resurrection plant Xerophyta humilis: parallels to the etioplast-chloroplast transition.

De-etiolation of dark-grown seedlings is a commonly used experimental system to study the mechanisms of chloroplast biogenesis, including the stacking of thylakoid membranes into grana, the response of the nuclear-chloroplast transcriptome to light, and the ordered synthesis and assembly of photosystem II (PSII). Here, we present the xeroplast to chloroplast transition during rehydration of the...

گزارش دلار شنی (Clypeaster humilis) در جزیره هندورابی؛ خلیج فارس

Neighbourhood competition in coexisting species: The native Cystoseira humilis vs the invasive Sargassum muticum

a Laboratory of Coastal Biodiversity, CIIMAR— Centro Interdisciplinar de Investigação Marinha e Ambiental, Rua dos Bragas, no 289, Universidade do Porto, 4050-123 Porto, Portugal b Área de Biodiversidad y Conservación, Universidad Rey Juan Carlos, c/Tulipán s/n, 28933 Móstoles, Madrid, Spain c Departamento de Ecología y Biología Animal, Facultad de Ciencias del Mar, Universidad de Vigo, 36310 V...