1g21] PACK—JUNIPERUS 49 
seedlings. As this protein digestion goes on, the number of free 
amino groups increases because of the splitting amino-carboxyl | 
linkings. When hydrogen of the free amino group is replaced by 
TABLE XIV 
TESTS FOR AMINO ACIDS IN JUNIPER SEEDS 
| AMOUNT OF AMINO ACIDS IN 
AMINO AcIDs seh onag COLOR REACTIONS | Dry seeds | After-ripened seeds 
Eadosperm Embryo Endosperm| Embryo 
Histidine + | Ehrlich’sdiazo | +++/+4++] + | +4 
Tyrosine + Ehrlich’s diazo + + ++ | ++ 
Tyrosine + | Millons a + | ++ ] +4 
Tyrosine + Xanthroproteic Hece do a ++ debe 
Cystine. . + Sulphur reduction + | + + f. 
Leucine. . Gere Cen ees eae + - a hs + 
€. + heeyriaere ee + ec 5 Bi sae 
TABLE XV 
CHANGES IN STORED PROTEIN FOOD DURING GERMINATION 
| | Dry SEEDS AFTER-RIPENED SEEDS 
REACTIONS 
| Endosperm}| Embryo | Hypocotyl | Endosperm} Embryo | Hypocotyl 
ns pee Oo ee ++] +4+4+) 44+ + + ++ 
Millons. ... . petest +++) +++ +++ ++) 44+ 
Xanthro roteic..... +++ ++ tty; +44; + 
Berlin blue... ..... ~ ? ? + ++ | +++ 
TABLE XVI 
INCREASE OF AMINO NITROGEN DURING AFTER-RIPENING AND GERMINATION 
me i Time of Tempera- | Pressure Nitrogen | Amino acid 
Condition of seed material ae N (cc.) ‘toe (mm.) — be L ceo 
D 138 
i Fg da ao papi 5 0.25 23.2 753.2 0.13 0.035 
MOC 5 0.50 24.7 750.8 0.274 0.270 
Hypoeotyl 3 mm. jong a oie 751.0 0.324 0.275 
Steteneses * 24. . . . 
Deve ped nD alga oa 5 0.59 4-5 
5 el Wears Cee s sb 24-5 a ’ i ° ae 
Coats bursted after 'sd0'days| °° | e 
at s°C.... 30 0.84 24.2 750.7 0.462 0.279 
Hypocotyl 3 mm. jong or after| 
FOS Gaybat gC 3... go 1.17 24.5 750.7 0.642 0.280 
Develo seedling or after 
130 days at s°C.......... go 1.07 25.2 750.7 1.078 0.935 
