Isolation of intact and pure chloroplasts from leaves of Arabidopsis thaliana plants acclimated to low irradiance for studies on Rubisco regulation

Magda Grabsztunowicz, Grzegorz Jackowski


A protocol is presented for low-cost and fast isolation of intact and pure chloroplasts from leaves of plants acclimated to low irradiance. The protocol is based on a differential centrifugation of cleared leaf homogenate and omits a centrifugation on Percoll gradient step. The intactness and purity of the chloroplasts isolated from leaves of low irradiance-acclimated plants by using this protocol (confirmed by phase contrast microscopy as well as enzymatic and immunological approaches) allows plausible studies on low irradiance-dependent Rubisco regulation.


acclimation; chloroplast isolation; differential centrifugation; low irradiance; Arabidopsis thaliana; Rubisco

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