Two‐component systems (TCS) play a vital role in bacterial adaptation to environmental stresses, including acid and metal toxicity. The ActJK system has been previously identified as a key regulator of acid tolerance in Sinorhizobium meliloti , a model organism for studying rhizobia‐legume symbioses. Here, we expand the functional scope of ActJK, demonstrating its involvement in responses to copper and zinc stress. Using trans...

Hybridization between widespread species and narrow endemics poses a serious conservation threat, often leading to extinction via genetic swamping. In this study, we applied an integrated approach—combining genetics, morphometrics, and functional ecology—to investigate the implications of hybridization between the widespread species Limonium cossonianum and the Critically Endangered L. estevei . We combined molecular markers (...

In the in vitro cloning of specific individuals of woody species, a challenge can be the low viability of explants collected from old mature donor trees due to the recalcitrance of their plant material. Other factors, such as the auxin–cytokinin balance, must also be considered. We investigated how in vitro conditions and donor age can modulate the regeneration capacity, morphophysiology, and DNA methylation of Quercus robur ....