Melatonin appears to help create lateral roots, but how exactly does it do this? A team from China have been examining the connection with hydrogen peroxide.
Tag - hydrogen peroxide
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Over-expression of Trxo1 and cell viability under H2O2 stress
Ortiz-Espín et al. treat over-expressing PsTrxo1 tobacco (Nicotiana tabacum) BY-2 cells with H2O2 and find a significant delay in cell death compared to controls, which may in part be due to a decreased content of...
Diurnal changes in algal xanthophyll cycle and H2O2 concentration
High light activates the xanthophyll cycle and increases the production of reactive oxygen species (ROS), such as hydrogen peroxide (H2O2), but the interrelationships between these parameters is poorly understood. Using...
Lysigenic PCD and schizogenously formed aerenchyma
This study reveals the optimal metabolic adaptation of E. densa stems to submerged habitats via lysigenic PCD and schizogenously formed aerenchyma
Abscisic acid underlies genotypic variation in stomatal responses
Stomata formed at high relative humidity (RH) are less responsive to abscisic acid (ABA), an effect that varies widely between genotypes. Giday et al. study four rose cultivars (Rosa hybrida) grown at 60% and 90% RH and...
Auxin and H2O2 interaction in control of root growth
One of the best-known effects of the plant hormone auxin on plant development is the inhibition of root elongation, yet the underlying mechanism remains poorly understood. Using tomato (Solanum lycopersicum) as a model...
Cytokinins can trigger hypersensitive-like responses
Activating the gene ipt to produce high levels of cytokinins in tobacco is sufficient to trigger fast cell death without intervening chlorosis.
Interphase-mitotic cell nuclei in Allium
Prolonged treatment of Allium cepa root meristems with changing concentrations of hydroxyurea (HU) results in either premature chromosome condensation or cell nuclei with an uncommon form of biphasic chromatin...
