“Mistakes are the portals of discovery”

-James Joyce-




Eukaryotic lipid metabolic pathway is essential for functional chloroplasts and CO2 and light responses in Arabidopsis guard cells.

Negi, J., Munemasa, S., Song, B., Tadakuma, R., Fujita M., Azoulay-Shemer, T, Engineer. B.C., Kusumi, K., Nishida, I., Schroeder .I.J., Iba, K.  

PNAS (2018).


Starch biosynthesis by AGPase, but not starch degradation by BAM1/3 and SEX1, is rate-limiting for CO2-regulated stomatal movements under short day conditions.

Azoulay-Shemer T., Schwankl, N., Rog, I.,Moshelion, M. Schroeder, J.I. 

FEBS letter (2018).


Seeing is believing.

Azoulay-Shemer T., Hsu, P.K., Schroeder, J.I.

News and Views, Nature Plants. (3):765-766 (2017).


Starch biosynthesis in guard cells but not in mesophyll cells functions in CO2 -induced stomatal closing.

Azoulay-Shemer T., Bagheri A, Wang C, Palomares A, Stephan AB, Kunz, H.H, Schroeder JI.

Plant Physiology 171(2):788-798 (2016).


Guard cell photosynthesis is critical for stomatal turgor production, yet does not directly mediate CO2 - and ABA-induced stomatal closing.

Azoulay-Shemer T., Palomares A, Bagheri A, Israelsson-Nordstrom M, Engineer CB, Bargmann BO, Stephan AB, Schroeder J.I.

Plant J 83: 567-581 (2015).


CO2 Sensing and CO2 Regulation of Stomatal Conductance: Advances and Open Questions.

Engineer CB, Hashimoto-Sugimoto M, Negi J, Israelsson-Nordström M, Azoulay-Shemer T, Rappel W-J, Iba K, Schroeder J.I.

Trends in Plant Science (2015) Volume 21, Issue 1, January 2016, Pages 16-30, ISSN 1360-1385.


Pathway of Chlorophyll Breakdown in Citrus Fruit Peel, as Compared with Senescing Arabidopsis Leaves and Other Plant Systems.

Azoulay-Shemer, T., Harpaz-Saad, S., Eyal, Y. and Goldschmidt, E.E.

ISHS Acta Horticulturae. 892 (2011).


Dual, N and C-terminal, processing of citrus chlorophyllase precursor within the plastid membranes leads to the mature enzyme.

Azoulay-Shemer, T., Harpaz-Saad, S., Cohen-Peer, R., Mett, A., Gidoni, D., Lovat, N., Krokhin, O., Spicer, V., Standing, G.K., Goldschmidt, E.E. and Eyal, Y.

Plant Cell Physiol. 52(1):70-83 (2011). 


Citrus chlorophyllase dynamics at ethylene-induced fruit color-break; a study of chlorophyllase expression, post-translational processing kinetics and in-situ intracellular localization.

Azoulay-Shemer, T., Harpaz-Saad, S., Belausov, E., Lovat, N., Krokhin, O., Spicer, V., Standing, K.G., Goldschmidt, E.E., Eyal, Y.

Plant Physiology 148: 108-118 (2008). 


Chlorophyllase is a rate-limiting enzyme in chlorophyll catabolism and is post-translationally regulated.

Harpaz-Saad, S., Azoulay, T., Arazi, T., Ben-Yaakov, E., Mett, A., Shiboleth, Y.M., Hortensteiner, S., Gidoni, D., Gal-On, A., Goldschmidt, E.E., Eyal, Y.

Plant Cell 19: 1007-1022 (2007).







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