Abstract Key message Lowered pollen and seed quality of B. humilis compared to its widespread tree relatives may threaten populations at the southwestern edge species range. Inability produce vital propagules is main threat persistence rare plants edges distribution. In present investigation, factors responsible for low germinability shrub birch ( Betula ) seeds in peripheral were analysed. As ...

Five new species of the genus Miltochrista Hübner, [1819] are described: kravchenkoi sp. n. (Myanmar: Chin State), velona (NW Myanmar, SW China (Sichuan) and N Vietnam), pachia Myanmar: ekliptika Kachin States), tinsukia (NE India: Assam). The lectotype for Cyllene humilis Walker, 1859 is designated. Adults, male female genitalia similar illustrated.

In Mediterranean-type ecosystems plants are exposed to several adverse environmental conditions throughout the year, ranging from drought stress during the warm and dry summers to chilling stress due to the typical drop in temperatures during winters. Here we evaluated the ecophysiological response, in terms of photoinhibition and photoprotection, of the dioecious Mediterranean palm, Chamaerops...

The plant community in the Patagonian steppe is arranged in two structural patch types: scattered grasses and shrubs, which are often surrounded by a ring of grasses. Previous studies suggested that this pattern results from a cyclical succession driven by plant interactions. Although there is a good understanding of the factors affecting the formation of the grass rings encircling the shrubs, ...

Sucrose is crucial to the growth and development of plants, and sucrose phosphate synthase (SPS) plays a key role in sucrose synthesis. To understand the genetic and molecular mechanisms of sucrose synthesis in Cerasus humilis, ChSPS1, a homologue of SPS, was cloned using RT-PCR. Sequence analysis showed that the open reading frame (ORF) sequence of ChSPS1 is 3174 bp in length, encoding a predi...