Recent Posts

Seed enhancement technologies to improve germination and emergence of Australian native Poaceae (Seed Sci. Res.)

One of the most significant limitations in seed-based restoration projects is that some native species exhibit low recruitment in the field. As a result, various seed enhancement technologies (SETs) are being developed to improve germination and seedling emergence by facilitating access to nutrients…

The seed germination spectrum of alpine plants ($) (New Phytol.)

Alpine ecosystems include all the environments found above the treeline, the maximum elevation where trees can grow. These environments are known for their low temperatures, unstable substrates, and short growing seasons. However, while germination studies in this ecosystem can be traced back to…

Distribution of seed dormancy classes across a fire-prone continent: effects of rainfall seasonality and temperature (Ann. Bot.)

Seed dormancy controls germination so that it occurs under the most suitable conditions. Different dormancy classes achieve this by allowing germination in response to distinct environmental cues. In fire-prone ecosystems, species with physically dormant (PY) seeds benefit from fire since it breaks their…

Elevation filters seed traits and germination strategies in the eastern Tibetan Plateau (Ecography)

Mountains are extraordinary natural laboratories. They encompass a wide range of environments in a relatively small space, making them ideal for assessing how different environmental variables shape plant traits and communities. Here, Wang and colleagues evaluate how seed functional traits vary along…

Combinations of maternal-specific repressive epigenetic marks in the endosperm control seed dormancy (bioRxiv.)

H3K27me3 [K27 (Lysine 27) trimethylation on histone H3] and H3K9me2 are two epigenetic modifications that repress gene activity in plants. While they are typically present in different genomic regions, both marks are found in the seed endosperm. Here, Sato and colleagues show that this histone modification…

The first dormancy profile for a tropical montane forest community (Plant Biol.) ($)

Seed dormancy is a crucial mechanism to synchronize germination with the most suitable environmental conditions. Therefore, assessing its prevalence at the community level allows us to understand how plants adapt to their local environment. In this paper, Athugala and colleagues build the first dormancy…

Buffering effects of soil seed banks on plant community composition in response to land use and climate (Glob. Ecol. Biogeogr.)

Plant communities seem to be able to mitigate the effects of climate and land-use change, given their responses are usually observed long after environmental conditions have changed. This lagged response has been attributed to the presence of persistent soil seed banks. Still, the evidence of their…

The genomic and transcriptomic foundations of viviparous seed development in mangroves (bioRxiv)

Some mangrove species are viviparous, meaning their seeds germinate while still attached to the mother plant. This behavior is thought to facilitate seedling establishment in the tropical and subtropical intertidal zones they inhabit. However, the genetic and molecular mechanism behind it remains to…

Coleorhiza‐enforced seed dormancy: a novel mechanism to control germination in grasses (New Phytol.)

The germination process is completed when the radicle emerges from the seed. In eudicots, radicle growth is mechanically limited by the micropylar endosperm. As dormancy is broken and imbibition occurs, this structure is weakened so that radicle can pierce it. In grasses, the radicle is not surrounded…