@Article{taiwania1992372104,
AUTHOR = {Ling-Long Kuo-Huang},
TITLE = {Ultrastructural study on the development of crystal-forming sclereids in Nymphaea tetragona},
JOURNAL = {Taiwania},
VOLUME = {37},
YEAR = {1992},
ISSUE = {2},
PAGES = {104-114},
URL = {https://taiwania.ntu.edu.tw/abstract/215},
ABSTRACT = {The sclereids of Nymphaea tetragona Georgi originate sporadically from the fundamental parenchyma. They undergo the following developmental phases: (1) phase of hypertrophic growth and ramification; (2) phase of crystal formation; and (3)
Phase of the sclerification. The distinguishable features of sclereid initials are their large nucleus, dense cytoplasm with abundant organelles and the conspicuous branching of the cells. The formation of calcium oxalate crystals in the cell wall of developing sclereid generally occurs after its shape is attained. Between the plasmalemma and the primary cell wall many crystal chambers are formed, which are bounded by crystal sheath. Mitochondria, dictyosomes, and endoplasmic reticulum often occur in close association with the plasmalemma surrounding the crystal chambers. At maturity, the sclereids posses extremely thick walls and the crystals are embedded between the primary and secondary wall. In plant cells the calcium oxalate crystals are generally located in the central vacuoles.},
DOI = {10.6165/tai.1992.37.104}
}