Distance from the sea as a driving force of microbial communities under water potential stresses in litters of two typical Mediterranean plant species

摘要: Abstract Though many studies have focused on the incidence of drought, little attention has been paid to osmotic stress and how interaction two stresses impacts microbial functioning. Moreover, deciphering certain environmental factors such as distance from sea or type litter may shape responses these is huge importance. The objective this study shed light impact matric (combined not) communities potentially shaped differently by either plant species sea. Two Mediterranean species, Cistus albidus L. Pistacia lentiscus L., collected both inland coastal areas, were used set up a total 72 mesocosms (4 mesocosms × 3 types litters (pure mixed) × 2 sites (coastal inland) × 3 stress). A first twenty four ‘control’ inland)) maintained under favourable conditions for 60 days (25 °C, 600 g·kg − 1 water content). For stress, subjected 5 drying/rewetting cycles (7 days at 25 °C/7 days content 25 °C). received 10 mg chlorine ions per g using NaCl then incubated 25 °C 60 days. last combined drought salt Resistance added was also tested. Catabolic diversity assessed via Biolog Ecoplates, higher in than areas after stresses. catabolic profiles depending type. Basal respiration withstood an severe better previously stress. Microbial area more able maintain their potential thus withstand Combined reinforced resistance respectively. Thus our findings reveal that capable overcome additional similar nature, suggesting adaptation mechanisms