A new experimental setup to measure hydraulic conductivity of plant segments
نویسندگان
چکیده
Abstract Plant hydraulic conductivity and its decline under water stress is the focal point of current plant research. Common methods measuring control a pressure gradient to push through samples, submitting them conditions far away from those that are experienced in nature where flow suction driven determined by leaf demand. In this paper, we present two for closer natural conditions, an artificial setup, horizontal syringe pump setup. Both approaches use pull sample while dynamically monitoring rate gradients. The setup presented here allows controlling rapidly changing enabling experimental assessment rapid responses stress. also quantification dynamic changes storage samples. Our tests demonstrate can reproduce values measured using standard method based on pushing above-atmospheric pressure. Surprisingly, both traditional our new found positive correlation between conductivity. Moreover, when or were changed rapidly, substantial contributions largely reversible Although measurements be performed sub-atmospheric pressures, it not possible subject samples negative pressures due presence gas bubbles near valves sensors. Regardless, unprecedented insights into interplay pressure, rate, conductivity, segments. This work was Open Science approach with original data analysis at https://doi.org/10.5281/zenodo.7322605.
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ژورنال
عنوان ژورنال: Aob Plants
سال: 2023
ISSN: ['2041-2851']
DOI: https://doi.org/10.1093/aobpla/plad024