EFFECTS OF IRON ON CERTAIN NITROGENOUS FRACTIONS OF <i>ANANAS COMOSUS</i> (L.) MERR

Sideris, C. P.; Young, H. Y.

doi:10.1104/pp.21.1.75

Cited by 12 publications

(10 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The low-N cultures in the same series lacked in nitrate because of the small external supply. Of course the cultures in the ammonium-N series were completely devoid of nitrate, which is in agreement with previous finidings (30,33,34 …”

Section: Total Nitrogensupporting

confidence: 79%

“…PROTEIN-N Proteini-\N for the high-N cultures was greater in the ammiioniumii than niitrate-N seriets (fi(g. (30,33,34) showed that NH4; is assimilated by time root tissues of A. contosius almost as soon as it is absorbed alnd coniverted to amide-N, amnino-N and protein-N, whereas NO,-is translocated fronm the roots to the nlon-ehlorophyllous regionis of the leaves in the original state and assimiiilated in the chlorophyllous regions. VICKERY et (ll.…”

Section: Amide-nmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Nitrogen on the Nitrogenous Fractions of Ananas comosus (L.) Merr.

1947

Self Cite

View full text Add to dashboard Cite

Section: Total Nitrogensupporting

confidence: 79%

Section: Amide-nmentioning

confidence: 99%

Effects of Nitrogen on the Nitrogenous Fractions of Ananas comosus (L.) Merr.

1947

Self Cite

View full text Add to dashboard Cite

“…The composition of the nutrient solutions, cultural procedures, methods of chemical analyses of the tissues and of statistical treatment of the data have been described in previous publications (19,20,22).…”

Section: Methodsmentioning

confidence: 99%

EFFECTS OF POTASSIUM ON THE NITROGENOUS CONSTITUENTS OF ANANAS COMOSUS (L.) MERR

Sideris¹,

Young²

1946

Plant Physiol.

Self Cite

View full text Add to dashboard Cite

“…From previous publications (27,28), depicting relationships between chlorophyll and protein in cultures supplied with equal amounts of nitrogen as NO, or NH4 but with differeQt amounts of iron, correlation betweenl chlorophyll and protein in all cultures is shown ( fig. 1).…”

Section: Sideris: Chlorophyll and Protein Interrelationsiiipsmentioning

confidence: 95%

“…The data oli protein-N anid chlorophyll contenit in var0ious leaf sections of A. comosus, in previous publications (27,28,29,30,31,32) (26,27,29,31). Gradienits of titrable acidity-and pH of the various leaf sectionis, influenieed by diurnal chaniges anid rates of respiratory activity (33), increased in the former but decreased in the latter fromn the basal to the terminal sections during the hours of darkness or low light, while at times of full sunlight, when photosynthetic activity was at maximum, they either disappeared or became slightly reversed.…”

Section: Sideris: Chlorophyll and Protein Interrelationsiiipsmentioning

confidence: 96%

Chlorophyll and Protein Interrelationships in Ananas comosus (L.) Merr.

Sideris¹

1947

Plant Physiol.

Self Cite

View full text Add to dashboard Cite

Studies on a quantitative separation and analysis of chloroplastic matter by different investigators have revealed that chlorophyll is held by chemical forces on proteinaceous matter. This matter, named phyllochlorin by MESTRE (17), chloroplastin by STOLL (37), photosynthin by FRENCH (8), and chloroglobin by RABINOWITCH (21), is presumably identical with the substance composing the stroma of chloroplasts.FREY-WYSSLING (9), discussing the composition of chloroplasts, stated that, according to GUILLERMOND, MANGENOT, and PLANTEFOL (13) and SHARP (24), the structure of the chloroplasts of higher plants is homogeneous and not granular with small green particles imbedded in a colorless stroma, as postulated by MEYER (18) and SCHIMPER (22), and that the granulations are artifacts. According to HEITZ (15), the grana are not spheres but disks oriented parallel to the surface of the disk-shaped particles which alone contain the chlorophyll. NOACK (20) observed that colloidal chlorophyll does not show fluorescence except when adsorbed in monomolecular layers. Also, EULER et al. (7) have reached a similar conclusion from determinations of the quantity of chlorophyll in one single plastid. MethodsThe isolation of chloroplasts or of chloroplastic matter has been effected in various ways by different investigators (3,5,8,11,12,14,17,19) and with somewhat similar results. ISOLATION OF CHLOLOPLASTIC MATTERIn former studies (25) the leaves of A. comosus were segregated into groups represented by old (B), mature (C), active (D), and young (E) leaves. In A. comosus, as in all monocotyledonous plants, the old (B) leaves occupy positions at. the basal end of the stem, the young (E) at the apical end, and the mature (C) and active (D) at the medial section. Such leaves are cut for many studies into four or five cross sections in order to segregate tissues of different stages of development and physiological function. The basal sections (no.

show abstract

EFFECTS OF IRON ON CERTAIN NITROGENOUS FRACTIONS OF ANANAS COMOSUS (L.) MERR

Cited by 12 publications

References 6 publications

Effects of Nitrogen on the Nitrogenous Fractions of Ananas comosus (L.) Merr.

Effects of Nitrogen on the Nitrogenous Fractions of Ananas comosus (L.) Merr.

EFFECTS OF POTASSIUM ON THE NITROGENOUS CONSTITUENTS OF ANANAS COMOSUS (L.) MERR

Chlorophyll and Protein Interrelationships in Ananas comosus (L.) Merr.

Contact Info

Product

Resources

About