Endemism is one of the most important concepts in biogeography and often used to guide biodiversity conservation, yet our understanding determinants endemism many biodiverse tropical regions limited. This true for western Central Africa, a region with highest levels plant diversity where poorly documented. study examines Gabonese Area (GAE) explores main characteristics its vascular regard taxo...

Today, the beneficial role of silicon (Si) in increasing growth and yield monocotyledons has been proven. But effect this element on dicotyledonous plants such as legumes less studied. In addition, Si development roots nodulation soybean is still an unexplored research area. study, different levels (0, 100, 200, 400, 600 800 mg kg− 1 soil) from potassium silicate source some soil biological pro...

Septal nectary anatomy of members of the Haemodoraceae is described, with emphasis on nectary number and relative position within the ovary. Three types of septal nectaries are defined: infralocular, interlocular, and supralocular. The phylogenetic and possible adaptive significance of these features are assessed by adding the data to a previous cladistic analysis of the Haemodoraceae and consi...

Leaves of almost all C4 lineages separate the reactions of photosynthesis into the mesophyll (M) and bundle sheath (BS). The extent to which messenger RNA profiles of M and BS cells from independent C4 lineages resemble each other is not known. To address this, we conducted deep sequencing of RNA isolated from the M and BS of Setaria viridis and compared these data with publicly available infor...

Pectins are a group of plant polysaccharides whose principal component is 1,4-linked a-d-galactosyluronic acid (O’Neill et al., 1990). Pectins are present in the primary cell walls of all seed-bearing plants and in the junction between cells called the middle lamella. The primary wall surrounds growing plant cells, meristematic cells and cells in succulent tissue such as fruit. The secondary wa...

BACKGROUND Plant invasions are causing habitat degradation in Galapagos. Problems are concentrated on the four inhabited islands. Plants introduced to rural areas in the humid highlands and urban areas on the arid coast act as foci for invasion of the surrounding Galapagos National Park. METHODOLOGY/PRINCIPAL FINDINGS Here we present results of the most comprehensive inventory to date of alie...

The aim of this study was to evaluate the biodiversity ofplant associations in On Ebn-e-Ali Mountain in Tabriz and its relationship to various biodiversity indices. Four plant associations including 1) Noaea mucronata- Poetum bulbosa, 2) Noaea mucronata- Brometum tomentellus, 3) related to bush form as well as Poeto bulbosa-Brometum tomentellus and4) Brometo ...