Tag: Hypoxia

Oxygen is always considered something living forms need to survive. But wait, its role is beyond just respiration. Would you believe if I told you oxygen guides the development of young leaves? A recent study by Panicucci et al. reveals that oxygen acts as a signalling molecule, affecting cell proliferation…

The periderm is a protective outer tissue formed during secondary growth in many seed plants, serving as a barrier against water loss and pathogen invasion. When damaged, it can regenerate to restore its protective function. However, the molecular and cellular mechanisms underlying periderm regeneration…

Hypoxia, or reduced oxygen availability, is a double-edged sword: while it disrupts metabolism and can cause cell death, it also plays a vital role in regulating development in animals and plants. With extreme flooding increasing due to climate change, understanding how genetic variation enhances hypoxia…

The January 2025 issue of Plant Physiology has a focus on “Hypoxia and Plants”. This field has made a lot of progress recently in understanding plant responses to low oxygen, from the molecular to physiological and developmental levels. The focus issue includes reviews on topics such as divergent…

When thinking of hypoxia or low oxygen in plants, the image that often comes to mind is one of flooding stress. However, it’s not just plants exposed to excess of water that face hypoxia. Even in growing plants, hypoxia sensing and the existence of hypoxic niches play a vital role in their development.…

As the hottest year on record, 2023 has truly been a global annus horribilis during which humans, other animals, and domesticated and wild plants have faced unprecedented environmental challenges. In the past month alone, torrential rainfalls have wreaked havoc in Asia, the Middle East, and many parts…

When flooding occurs, soils become saturated and oxygen solubility and diffusion decreases. This situation creates a hypoxic environment in the roots that stresses the plant, causing significantly decreased growth. However, the quiescent center (QC) stem cells, located in the root apical meristem, are…

Floods limit plant oxygen availability, impacting their growth and productivity. In hypoxia, the ERF-VII group of transcription factors are stabilized and activate Hypoxia-Responsive Genes (HRG) that prepare the plant to face the stress. In this situation, plant metabolism switches from oxidative phosphorylation…