The micropylar endosperm cap covering the radicle in the mature seeds of most angiosperms
acts as a constraint that regulates seed germination. Here, we report on a comparative …

Hormonal changes accompanying the cold stress (4C) response that are related to the level
of frost tolerance (FT; measured as LT50) and the content of the most abundant dehydrin, …

Responses to drought, heat, and combined stress were compared in tobacco (Nicotiana
tabacum L.) plants ectopically expressing the cytokinin oxidase/dehydrogenase CKX1 gene of …

Seed dormancy is an ecologically important adaptive trait in plants whereby germination is
repressed even under favorable germination conditions such as imbibition with water. In …

Plant hormones, cytokinins (CKs), have been for a long time considered to be involved in plant
responses to stress. However, their exact roles in processes linked to stress signalization …

Seed germination is an important life-cycle transition because it determines subsequent
plant survival and reproductive success. To detect optimal spatiotemporal conditions for …

Leaf senescence is an essential physiological process in plants that supports the recycling
of nitrogen and other nutrients to support the growth of developing organs, including young …

Under the canopy, far‐red (FR) light represses seed germination by inactivating phytochrome
photoreceptors. This elicits a decrease in gibberellins (GA) levels and an increase in …

miR156 is a conserved microRNA whose role and induction mechanisms under stress are
poorly known. Strigolactones are phytohormones needed in shoots for drought acclimation. …

Endogenous cytokinins, auxins, and abscisic acid (ABA) were identified and quantified in 11
red algae collected from the Brazilian coast. Field materials and two isolates cultured in the …