3.1.1.14 13-OH-chlorophyll a + H2O in varieties Hojiblanca and Picual 3.1.1.14 bacteriochlorophyll a + H2O - 3.1.1.14 bacteriochlorophyll a + H2O preferred substrate 3.1.1.14 chlorophyll + H2O - 3.1.1.14 chlorophyll + H2O Chlase is a rate-limiting enzyme in chlorophyll catabolism and is posttranslationally regulated, it catalyzes the cleavage of the hydrophobic thylakoid-anchoring phytol chain of chlorophyll from the porphyrin ring, resulting in the product chlorophyllide, which retains the typical green color, chlorophyll catabolic pathway, overview 3.1.1.14 chlorophyll + H2O chlorophyllase catalyzes the initial hydrolysis of the phytol moiety from the pigment in the degradation of chlorophyll, overview 3.1.1.14 chlorophyll + H2O chlorophyllase is the first enzyme in the degradation pathway of chlorophyll, resulting in postharvest yellowing in broccoli 3.1.1.14 chlorophyll + H2O chlorophyllase is the first enzyme in the degradation pathway of chlorophyll, resulting in postharvest yellowing in broccoli, CLH1 is expressed during the course of broccoli postharvest senescence 3.1.1.14 chlorophyll + H2O isozyme AtCLH1 is not essential for chlorophyll breakdown during plant senescence, overview 3.1.1.14 chlorophyll + H2O isozyme AtCLH2 is not essential for chlorophyll breakdown during plant senescence, overview 3.1.1.14 chlorophyll + H2O no gender-specific changes in chlorophyllase activity is response to low temperature stress, however, male plants show higher chlorophyll a/b ratio than female plants, overview 3.1.1.14 chlorophyll + H2O the enzyme is involved in the first step of chlorophyll degradation, molecular regulation of in vivo activities, AtCLH2 might play a distinctive role in chlorophyll catabolism in vivo, overview 3.1.1.14 chlorophyll + H2O the first enzyme in the chlorophyll degradation pathway in vivo catalyzes the hydrolysis of chlorophylls and pheophytins into their hydrophilic chromophore moieties chlorophyllides and pheophorbides, respectively 3.1.1.14 chlorophyll a + H2O - 3.1.1.14 chlorophyll a/b + H2O - 3.1.1.14 chlorophyll a/b + H2O the enzyme is involved in the regulation of chlorophyll a and b content 3.1.1.14 chlorophyll b + H2O - 3.1.1.14 chlorophyll b + H2O chlorophyll b is recognized and degraded with greater efficiency than chlorophyll a 3.1.1.14 additional information no activity with chlorophyll b in all variants 3.1.1.14 additional information key enzyme in chlorophyll degradation 3.1.1.14 additional information the enzyme participates in the phytyl ester formation in the final step of chlorophyll biosynthesis 3.1.1.14 additional information first stage in the enzymic breakdown of chlorophyll in vivo may be the removal of the phytol side chain by chlorophyllase 3.1.1.14 additional information autolysis of chlorophyll appears to be brought about by enzymatic activity of chlorophyllase which upon membrane disruption and solubilization obtains access to its chlorophyll substrate 3.1.1.14 additional information since chlorophyll degradation is a defining feature of plant senescence, compounds inhibiting chlorophyllase activity may delay senescence, thereby improving shelf life and appearance of plant products 3.1.1.14 pheophytin a + H2O in varieties Hojiblanca and Picual