Pectic polysaccharides of growing plant tissues

Pectic polysaccharides of growing plant tissues.

1. The polysaccharide compositions of the cell walls of sycamore cambium and sycamore callus tissue have been analysed and found to be directly comparable. 2. Electrophoretic analyses of the whole pectins prepared from actively growing callus and cambial tissue have shown that these preparations contain, in addition to the neutral and weakly acidic components present in apple fruit, a strongly ...

Pectic Content of Plant Materials.

Many plants and plant materials such as wood (2), tea (25), tobacco (15), cotton (16), hops (13), ramie (11), flax (12), grass (6), potato (10), plantain seed (20), celery (9), limes (22), guava (1), bergamnot (23), and root hairs (21), have been shown to contain pectic compounds. Because different methods of extraction and analysis were employed, it is impossible to iiiake comparative studies ...

The structure, function, and biosynthesis of plant cell wall pectic polysaccharides.

Plant cell walls consist of carbohydrate, protein, and aromatic compounds and are essential to the proper growth and development of plants. The carbohydrate components make up approximately 90% of the primary wall, and are critical to wall function. There is a diversity of polysaccharides that make up the wall and that are classified as one of three types: cellulose, hemicellulose, or pectin. T...

Pectic Metabolism of Growing Cell Walls.

Novel O-D-galacturonoyl esters in the pectic polysaccharides of suspension-cultured plant cells.

Driselase digestion of uronate-6-14C-labeled primary walls of cultured spinach (Spinacia oleracea L.) cells yielded about 18 novel uronate-containing compounds, most of which could be hydrolyzed by cold dilute alkali to yield oligo-[14C]galacturonides. One typical Driselase digestion product (compound 17) yielded alpha-(1-->4)-D-[14C]galacturonotriose(GalA3) upon very mild treatment with alkali...