Biochemical Studies on Pollen Part VI Inorganic Components and Phosphorus Compounds of Pollen

• Published in: Nippon Nōgeikagaku Kaishi Vol. 41; no. 5; pp. 178 - 183
• Main Authors: TOGASAWA, Yoshihisa, KATSUMATA, Teizo, ÔTA, Tatsuro
• Format: Journal Article
• Language: Japanese
• Published: Japan Society for Bioscience, Biotechnology, and Agrochemistry 1967
• ISSN: 0002-1407; 1883-6844
• DOI: 10.1271/nogeikagaku1924.41.5_178

The anemophilous pollen of Pinus Banksiana, P. Thunbergii, P. densiflora and Zea Mays, and the entomophilous pollen of Cucurbita maxima, Lilium lancifolium, L. cardifolium, Narcissus Pseudo-Narcissus and Iris Pseudacorus were studied for inorganic components, and further the above anemophilous pollen and the pollen of C. maxima, L. lancifolium, N. Pseudo-Narcissus and Magnolia liliflora for phosphorus compounds. (1) By the spectrographic analyses, Na, K, Mg, Ca, Sr, Zn, Mn, Fe, Al, Cu, B, Si and P were detected in all samples; Ni and Cr only in L. lancifolium, N. Pseudo-Narcissus and I. Pseudacorus; Pb in P. Thunbergii, P. densiflora and Zea Mays; Ti in the samples excluding C. maxima, L. cardifolium and I. Pseudacorus. (2) A remarkable finding was the high content of K, 902.7_??_1, 543.6mg% on the dry basis. P content in the pollen of Pinus (344.3_??_452.4mg%) was less than that of angiosperms (615.2_??_1, 102.8mg%). Contents of other inorganic components were as follows; Mg 96.7_??_170.3, Ca 36.2_??_99.4 and Si 25.4_??_171.1mg%. The contents of Na, Fe, Al, Zn, Cu and Mn were inconsiderable. (3) The distribution of phosphorus was as follows; acid-soluble P 141.5_??_632.1 (including inorganic, highly labile, _??_7 and residual organic-P), phospholipid-P 103.9_??_258.0, RNA-P 38.2_??_133.6, DNA-P 11.2_??_58.1, phosphoprotein-P 17.3_??_61.9 and insoluble-P 1.7_??_6.9mg%. Among them, acid-soluble P formed 40.6_??_57.3% of the total-P for all samples, though those were 332.3_??_632.1 in angiosperms and 141.5_??_203.6mg% in Pinus, respectively.