Recent Posts

Comparative analyses of extreme dry seed thermotolerance in five Cactaceae species (Environ. Exp. Bot.)

Desert plants must produce seeds that can withstand incredibly high temperatures. Nevertheless, different species of cacti –one of the most emblematic plant groups of these ecosystems– exhibit variable responses to extreme temperatures. In this fascinating paper, Visscher and colleagues conduct a…

Review: Functional packaging of seeds (New Phytol.)

In this review, Huss and Gierlinger describe the different anatomical features that shape sclerenchyma function in hard seed encapsulations. Hard encapsulations are classified as static (non-deforming at the macroscopic level) or responsive (deforming in response to environmental changes), depending…

A tale of two morphs: seed coat differentiation in the dimorphic diaspore model Aethionema arabicum (Brassicaceae) (Plant J.)

While most plants have a single fruit and seed form, several species produce two or more distinct fruit and seed types, although the mechanisms behind this phenomenon remain unknown. Here, Arshad and colleagues assess the differences in the internal morphology and transcriptomic profile throughout development…

Review:  Postzygotic reproductive isolation established in the endosperm: mechanisms, drivers and relevance ($) (Phil. Trans. R. Soc. B)

In this fascinating review, Köhler and colleagues show us that the seed endosperm is not only a nutritive tissue that supports embryo growth, it also nourishes the course of plant evolution. When closely related species or species with different ploidy levels hybridize, endosperm development deviates…

Gaseous environment modulates volatile emission and viability loss during seed artificial ageing (Planta)

The gaseous environment is thought to play a fundamental role in seed longevity in storage conditions, given the role of oxygen and other volatile compounds in seed viability loss. However, formal tests of its influence are still scarce compared to other storage parameters such as temperature and humidity.…

Review: Ageing beautifully: can the benefits of seed priming be separated from a reduced lifespan trade-off? (J. Exp. Bot.)

Seed priming is a family of presowing techniques that control water uptake in seeds, so they are dehydrated once metabolic activities have restarted but before the end of germination. Primed seeds have shown increased and more synchronized germination, especially under stressful conditions, making these…

Endosperm turgor pressure both promotes and restricts seed growth and size (bioRxiv)

Seed size is a plant trait with agricultural and ecological relevance. However, the mechanisms that determine the final size of seeds are still subject to debate. Here, Creff and colleagues use computational models and mutant experiments to dissect the role of endosperm turgor in Arabidopsis seed size.…

Evolution and ecology of seed internal morphology in relation to germination characteristics in Amaranthaceae ($) (Ann. Bot.)

Seed germination, a critical life stage in a plant's life cycle, can be affected by internal seed morphology. In this exciting research, Vandelook and colleagues investigated the evolution of embryo and nutritive tissue characteristics and their relationship with the germination traits of 84 species…

Review: Time to wake up: Epigenetic and small-RNA-mediated regulation during seed germination (Plants)

Seed germination is a crucial step in plants' life cycle and has critical implications in ecological and agronomic contexts. Therefore, there has been an increasing interest in understanding the mechanisms that prevent or trigger this process. Here, Luján-Soto and Dinkova provide a thorough review of…