A guide to Open-JIP, a low-cost open-source chlorophyll fluorometer

Bates, Harvey and Zavafer, Alonso and Szabó, Milán and Ralph, Peter J (2019) A guide to Open-JIP, a low-cost open-source chlorophyll fluorometer. PHOTOSYNTHESIS RESEARCH, AiP. ISSN 0166-8595

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Chlorophyll a fluorescence is the most widely used method to study photosynthesis and plant stress. While several commercial fluorometers are available, there is a need for a low-cost and highly customisable chlorophyll fluorometer. Such a device would aid in performing high-throughput assessment of photosynthesis, as these instruments can be mass-produced. Novel investigations into photosynthesis can also be performed as a result of the user's ability to modify the devices functionality for their specific needs. Motivated by this, we present an open-source chlorophyll fluorometer based on the Kautsky induction curve (OJIP). The instrument consists of low-cost, easy-to-acquire electrical components and an open-source microcontroller (Arduino Mega) whose performance is equivalent to that of commercial instruments. Two 3D printable Open-JIP configurations are presented, one for higher plants and the other for microalgae cells in suspension. Directions for its construction are presented and the instrument is benchmarked against widely used commercial chlorophyll fluorometers.

Item Type: Article
Uncontrolled Keywords: CYANOBACTERIA; Chlorophyll a fluorescence; FLUOROMETER; Open-source; Chlorella Vulgaris; OJIP;
Subjects: Q Science / természettudomány > QH Natural history / természetrajz > QH301 Biology / biológia
Q Science / természettudomány > QK Botany / növénytan
Depositing User: MTMT SWORD
Date Deposited: 21 Nov 2019 07:18
Last Modified: 21 Nov 2019 07:18

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