Entries by Michela Osnato

REVIEW: Shared Structural Principles Across Kingdoms ($) (Annu. Rev. Cell Dev. Biol)

Understanding how a single fertilized cell develops into a complex multicellular system has always been a challenging but fascinating topic of developmental biology. In both animal and plant species, it all starts with a simple spherical cell; afterward, two axes of polarity generate flat shapes, and a third axis originates folded shapes. The combination of […]

Temperature-dependent growth contributes to long-term cold sensing ($) (Nature)

Seasonal changes in ambient temperature greatly influence plant development. While the response to acute heat stress has been widely studied, the regulatory mechanisms that integrate naturally fluctuating temperatures – such as the progression of winter – remain largely unknown. This paper sheds new light on the activation of VERNALIZATION INSENSITIVE 3 (VIN3), a key regulator of […]

Review. Plant nutrition for human nutrition: Hints from rice research and future perspectives

Among all the mineral elements transported from the soil to the plant, cadmium (Cd) and arsenic (As)- are toxic for all organisms whereas 13 micronutrients, including iron (Fe) and zinc (Zn), are beneficial for both human and plant nutrition. Ideally, food crops should accumulate fewer soil contaminants but more essential elements in their edible portions. […]

The 3′ processing of antisense RNAs physically links to chromatin-based transcriptional control (PNAS)

In Arabidopsis, multiple genetic pathways control the floral transition in response to external and internal stimuli. Among these, components of the autonomous pathway promote flowering by negatively regulating the central floral repressor FLOWERING LOCUS C (FLC). Despite the wealth of information on RNA-mediated chromatin silencing of FLC, the molecular link between FLOWERING TIME CONTROL (FCA)- […]

Natural variations at the Stay-Green gene promoter control lifespan and yield in rice cultivars (Nature Comms)

Crop production is greatly influenced by the duration of the last stage of plant life cycle, senescence, through degradation of resources in leaves and remobilization of nutrients to developing seeds. Indeed, higher grain yield of important cereals such as maize and sorghum can be achieved by using stay-green (sgr) mutants characterized by delayed senescence. Nevertheless, […]

UDP-glucosyltransferase regulates grain size and abiotic stress tolerance associated with metabolic flux redirection in rice (Nature Comms.)

Climate change severely affects plant growth and jeopardizes yields of essential seed crops such as rice. Still, the mechanisms underlying the synergistic regulation of abiotic stress response and important agronomic traits remain poorly understood. Dong et al. cloned and characterized a major QTL in rice, named Grain Size and Abiotic stress tolerance 1 (GSA1) after […]

Review: Sequencing and analyzing the transcriptomes of a thousand plant species (Annu. Rev. Plant Biol.)

Over the past decade, Next Generation Sequencing (NGS) has been used for de novo assembly of crop genomes (i.e., tomato, potato) under the motto “If it tastes good, let’s sequence it”. By contrast, the One Thousand Plant (1KP) Initiative set out to obtain transcriptomic data of phylogenetically diverse green plant species without any apparent economic […]

Accumulation of high value bioproducts in planta can improve the economics of advanced biofuels (PNAS)

Biofuels can be obtained from bioenergy crops such as sorghum, maize and sugarcane. However, the production of bioethanol is still more expensive than that of petroleum. Given the importance of replacing conventional fossil fuels with renewable liquid fuels, the biorefinery system should be improved to reach the Minimum Ethanol Selling Price (MESP) of $2.50/galllon. One […]

Mutations PETALOSA cause a dominant double-flower phenotype (J. Exp. Bot.)

Flower development has always been a fascinating field of research in plant biology. While molecular studies in the past focused on regulatory genes involved in the formation of floral organs in model species, current investigations are addressing the genetic determinants underlying the huge variety of flower. Recently, the genetic basis of the double flower trait […]