Proceedings / Indian Academy of Sciences
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Auxin-induced biochemical changes in isolated leaves
Tập 69 Số 1 - Trang 36-41 - 1969
Leaves ofVinca rosea L. were treated with Indole-3-butyric acid and analysed 2,
4 and 6 days later during the organisation of root initials. At the three
periods the total sugar content increased by 5·2, 4·4 and 7·3% of the fresh
weight respectively, the sucrose by 5·16, 6·99 and 5·90%, the reducing sugar by
−0·25, −0·90 and +1·1%; the total nitrogen by 0·1, 0·65 and −0·05%, the soluble
nitrogen b...
A contribution to the embryology ofOlax wightiana wall
Tập 39 Số 6 - Trang 249-256 - 1954
The floral parts arise in acropetal succession. Unicellular hairs are
distributed over the floral parts. Plenty of tannin cells are found. The wall of
the anther consists of five layers external to the tapetum. The tapetal cells
are uninucleate at first, but later become binucleate, and are of the glandular
type. The endothecium and the layer immediately below it are fibrillar. The
microspores are...
Enzymic proteolysis
Tập 15 Số 6 - Trang 285-297 - 1942
A study has been made of the rate of liberation of cystine and amino nitrogen
from eight proteins during successive digestion by pepsin and trypsin. Assuming
the specificity of the Sullivan reaction it can be concluded that no free
cystine is present in peptic digests. The same reaction shows that cystine is
rapidly set free during the action of trypsin. From the vegetable proteins
(edestin, gliad...
Effect of herbicides on the carbohydrate and nitrogen contents of nutgrass (Cyperus rotundus L.)
Tập 82 Số 2 - Trang 57-62 - 1975
The effect of four herbicides on the starch and nitrogen contents of the tubers,
dry matter production, carbohydrate, amide, amino, ammonium and nitrate nitrogen
contents of the foliage of nutgrass (Cyperus rotundus L.) under pot culture
conditions was studied. The starch content of the tubers of nutgrass depleted
maximum by the Embutox-plus and Tok E-25 when applied as foliar spray and soil
place...
Isolation and identification of capsaicin and allied compound in chilli
Tập 77 Số 5 - Trang 196-201 - 1973
The isolation and identification of capsaicin from fruits yielded two
substances. The white crystalline compound, which, after U.V. and I.R.
examination, exhibited the maximum absorption at 206 mµ and the characteristics
of long chain-n-alkyl, adjacent to a carboxyl group, was identified as palmatic
acid. The molecular formula was, later on, confirmed to C19H38O2. The second,
which was oily in nat...
Studies on the chemistry of copper(I) with arylazoimidazoles
Tập 110 Số 5 - Trang 445-451 - 1998
N(1)-alkyl-2-(arylazo)imidazoles (RC6H4N=NC3H2N N(1)X; X=Me (a), Et (b);
R=7-Me(L1), 7-OMe(L2), 7-Cl(L3), 7-NO2(L4) and 8-Me(L5)) yield perchlorate salts
ofbis-chelated complexes with copper(I). The complexes are 1:1 electrolyte and
the composition in supported by Jobs method of continuous variation. The N=N
stretching is red shifted by 60–70 cm−1 compared to free ligand values
suggesting efficien...
Inheritance of fruit colour in theSolanum nigrum complex
Tập 74 Số 3 - Trang 137-141 - 1971
In theSolanum nigrum complex there is wide variability in the fruit colour. In
17 accessions representing diploids, tetraploids and hexaploids, dark shining
blue, dull blue, bright red, orange red, yellowish-red and translucent green
were observed in the different accessions. Blue is inherited as dominant over
red and translucent green; however, the results obtained in crosses between blue
and tra...