Publications by authors named "L Herrera-Estrella"
Extreme dryness is lethal for nearly all plants, excluding the so-called resurrection plants, which evolved vegetative desiccation tolerance (VDT) by recruiting genes common in most plants. To better understand the evolution of VDT, we generated chromosome-level assemblies and improved genome annotations of two Selaginella species with contrasting abilities to survive desiccation. We identified genomic features and critical mechanisms associated with VDT through sister-group comparative genomics integrating multi-omics data.
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- - Cytokinin plays a crucial role in how plants, particularly Arabidopsis, adapt to arsenic (As(III)) stress by regulating root growth and cytokinin levels.
- - The proteins ARR1 and ARR12 are identified as negative regulators in cytokinin signaling related to As(III) responses, affecting ion transport and nutrient usage in plants.
- - Research shows that ARR1 and ARR12 enhance the expression of specific genes (NIP1;1 and NIP6;1) involved in arsenic uptake, which leads to increased arsenic accumulation under stress, offering insights for developing crops with reduced arsenic levels.
Growth of the toxic alga Prymnesium parvum is hormetically stimulated with environmentally relevant concentrations of glyphosate. The mechanisms of glyphosate hormesis in this species, however, are unknown. We evaluated the transcriptomic response of P.
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- Cuticular wax (CW) serves as a crucial protective layer for plants, preventing water loss and shielding them from insects, pathogens, and UV radiation.
- In sorghum, a drought-tolerant grass, researchers studied a bloomless mutant (bm41) that showed an 86% reduction in wax content, specifically lower levels of very long-chain fatty acids and other wax components compared to the wild type.
- The study identified BM41 as a positive regulator of lipid development, linked to CW biosynthesis, suggesting that enhancing this pathway could boost heat and drought tolerance in grass crops.
Phosphite (Phi) has gained attention in agriculture due to its biostimulant effect on crops. This molecule has been found to benefit plant performance by providing protection against pathogens, improving yield and fruit quality as well as nutrient and water use efficiency. It is still unclear how Phi enhances plant growth and protects against multiple stresses.
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