Abstract
Chlorophyllase (Chlase, CLH) is one of the earliest discovered enzymes present in plants and green algae. It was long considered to be the first enzyme involved in chlorophyll (Chl) degradation, while strong evidence showed that it is not involved in Chl breakdown during leaf senescence. On the other hand, it is possible that CLH is involved in Chl breakdown during fruit ripening. Recently, it was discovered that Arabidopsis CLH1 is located in developing chloroplasts but not in mature chloroplasts, and it plays a role in protecting young leaves from long-term photodamage by catalysing Chl turnover in the photosystem II (PSII) repair cycle. However, there remain other important questions related to CLH. In this article, we briefly reviewed the research progress on CLH and listed the main unanswered questions related to CLH for further study.
Highlights
International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China; Abstract: Chlorophyllase (Chlase, CLH) is one of the earliest discovered enzymes present in plants and green algae
Chlorophyllase (Chlase) is an enzyme that catalyses the conversion of chlorophyll (Chl) to chlorophyllide (Chlide) by removing the phytol side chain
If CLHs are involved in Chl degradation, their knockout mutant plants should show a stay-green phenotype during dark-induced leaf senescence, as inferred from the phenotype of plants lacking one of the other Chl degradation enzymes [23,36]
Summary
International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China; Abstract: Chlorophyllase (Chlase, CLH) is one of the earliest discovered enzymes present in plants and green algae. Chlase was considered the first enzyme for catalysing Chl degradation in senescent leaves [10,11,12]. If CLHs are involved in Chl degradation, their knockout mutant plants should show a stay-green phenotype during dark-induced leaf senescence, as inferred from the phenotype of plants lacking one of the other Chl degradation enzymes [23,36].
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
