In-vitro digestibility of kale (Brassica oleracea) secondary xylem and parenchyma cell walls and their polysaccharide components

1989 ◽  
Vol 48 (1) ◽  
pp. 9-14 ◽  
Author(s):  
Wilma D Wilson ◽  
Michael C Jarvis ◽  
Henry J Duncan
Keyword(s):  
Brassica Oleracea ◽  
Cell Walls ◽  
Secondary Xylem ◽  
Parenchyma Cell ◽  
In Vitro Digestibility ◽  
Parenchyma Cell Walls

MICROSTRUCTURE ANALYSIS OF MOSO BAMBOO (Phyllostachys pubescens MAZEL) SURFACE AFTER UV RADIATION

2019 ◽  
Vol 27 (01) ◽  
pp. 1950090
Author(s):  
HAIXIA YU ◽  
XIN PAN ◽  
WEIMING YANG ◽  
WENFU ZHANG ◽  
XIAOWEI ZHUANG
Keyword(s):  
Uv Radiation ◽  
Cell Walls ◽  
Uv Light ◽  
Parenchyma Cell ◽  
Moso Bamboo ◽  
Thick Wall ◽  
Phyllostachys Pubescens ◽  
Thin Wall ◽  
Intercellular Spaces ◽  
Parenchyma Cell Walls

Bamboo material is widely used in outdoor applications. However, they are easily degraded when exposed to sunlight, their smooth surface will gradually turn to rough, and small cracks will appear and finally develop to large cracks. The paper presents a first-time investigation on the microstructure changes in the tangential section of Moso bamboo (Phyllostachys pubescens Mazel) radiated by artificial UV light. The results showed that the cracks mainly appeared at intercellular spaces of fibers where lignin content was high, the parenchyma cell walls and neighbor pits where the cell wall was very thin and more vulnerable than the other parts. In addition, the part of raised area and pit cavity tended to absorb more UV light radiation and showed more and larger cracks than the otherwhere. Cracks at the intercellular spaces of fibers were larger and bigger than those on the parenchyma cell walls. The cracks on the pits of the parenchyma cell walls normally appeared at one pit and then extended to the several surrounding pits. Bordered pits cavity showed more and larger cracks than the pits on the thin wall cells. The simple pits on the thick wall cells and the fiber cells were unaffected by UV radiation.

Isolation of rice dwarf mutants with ectopic deposition of phenolic components including lignin in parenchyma cell walls of internodes

2011 ◽  
Vol 30 (12) ◽  
pp. 2195-2205 ◽  
Author(s):  
Kanna Sato ◽  
Asuka Kawamura ◽  
Tsukasa Obara ◽  
Shinya Kawai ◽  
Shinya Kajita ◽  
...  
Keyword(s):  
Cell Walls ◽  
Parenchyma Cell ◽  
Phenolic Components ◽  
Parenchyma Cell Walls

Xylem parenchyma cell walls lack a gravitropic response in conifer compression wood

Planta ◽  
2015 ◽  
Vol 242 (6) ◽  
pp. 1413-1424 ◽  
Author(s):  
Lloyd A. Donaldson ◽  
B. Nanayakkara ◽  
K. Radotić ◽  
D. Djikanovic-Golubović ◽  
A. Mitrović ◽  
...  
Keyword(s):  
Cell Walls ◽  
Compression Wood ◽  
Parenchyma Cell ◽  
Xylem Parenchyma ◽  
Gravitropic Response ◽  
Xylem Parenchyma Cell ◽  
Parenchyma Cell Walls

Fine structural observations on substances attributable to Ceratocystis ulmi in American elm and aspects of host cell disturbances

1978 ◽  
Vol 56 (20) ◽  
pp. 2550-2566 ◽  
Author(s):  
G. B. Ouellette
Keyword(s):  
Host Cell ◽  
Cell Walls ◽  
Parenchyma Cell ◽  
Dutch Elm Disease ◽  
Similar Material ◽  
Fungal Cell ◽  
Fibrillar Material ◽  
American Elm ◽  
Vessel Walls ◽  
Parenchyma Cell Walls

Plugging of certain vessels may occur in elm shortly after inoculation with the Dutch elm disease pathogen, Ceratocystis ulmi (Buism.) C. Moreau. Plugging components include fibrillar material of varying density and fungal cells traceable mostly to inoculated spores. Some material is similar to fungal cell contents, and indications of extrusion of the latter through ruptured or unruptured walls were obtained. Other material is also attributable to disintegrating fungal walls. Radioautographs obtained from samples treated with [6-3H]thymidine indicate significant labeling of fungal cell contents and of similar material, free.Similar fibrillar material, some labeled, is present within pit membranes, in adjacent parenchyma cell walls, and in periplasmic areas associated with retraction of the plasmalemma and with other cytoplasmic disturbances. Host vessel walls are also altered in the presence of some fibrillar material but apparently release only limited amounts of disintegration products into vessels.The possible implications of these observations are discussed in relation to current hypotheses on wilt diseases.

Differences in endosperm cell wall integrity in wheat (Triticum aestivum L.) milling fractions impact on the way starch responds to gelatinization and pasting treatments and its subsequent enzymatic in vitro digestibility

2019 ◽  
Vol 10 (8) ◽  
pp. 4674-4684 ◽  
Author(s):  
Konstantinos Korompokis ◽  
Niels De Brier ◽  
Jan A. Delcour
Keyword(s):  
Triticum Aestivum ◽  
Cell Wall ◽  
Cell Walls ◽  
Triticum Aestivum L ◽  
Cell Wall Integrity ◽  
In Vitro Digestibility ◽  
Endosperm Cell ◽  
Amylolytic Enzymes ◽  
Physical Barriers

Intact wheat endosperm cell walls reduce intracellular starch swelling and retard its in vitro digestion by acting as physical barriers to amylolytic enzymes.

Composition and structure of tuber cell walls affect in vitro digestibility of potato (Solanum tuberosum L.)

2016 ◽  
Vol 7 (10) ◽  
pp. 4202-4212 ◽  
Author(s):  
Jovyn K. T. Frost ◽  
Bernadine M. Flanagan ◽  
David A. Brummell ◽  
Erin M. O'Donoghue ◽  
Suman Mishra ◽  
...  
Keyword(s):  
Cell Wall ◽  
Solanum Tuberosum ◽  
New Zealand ◽  
Cell Walls ◽  
Solanum Tuberosum L ◽  
In Vitro Digestibility ◽  
Soluble Cell ◽  
Composition And Structure

Higher amount of 4 M KOH-soluble cell wall pectic galactan is associated with lowerin vitrodigestibility in three New Zealand potato lines.

EFFECTS OF DATES OF SEEDING AND LEVELS OF N FERTILIZATION ON YIELDS, CHEMICAL COMPOSITION AND IN VITRO DIGESTIBILITY OF FORAGE KALE

1976 ◽  
Vol 56 (1) ◽  
pp. 63-70 ◽  
Author(s):  
G. PELLETIER ◽  
J. P. F. DARISSE ◽  
E. DONEFER
Keyword(s):  
Chemical Composition ◽  
Brassica Oleracea ◽  
Crude Protein ◽  
Dry Matter ◽  
N Fertilization ◽  
In Vitro Digestibility ◽  
Whole Plants ◽  
Different Levels ◽  
Brassica Oleracea L

Forage kale (Brassica oleracea L.) was seeded on three dates and fertilized at different levels of N as NH4NO3 for 3 yr. The highest dry matter (DM) yield was obtained with the earliest date of seeding and with levels of N fertilization of 120 kg/ha. The yield of crude protein (CP) was relatively constant among years, for the different dates of seeding and for N fertilization above 120 kg/ha. Increasing N fertilization or delaying seeding increased the leaf:stem ratio, and consequently the CP content. The levels of NO3-N in stems, leaves and whole plants were at an acceptable level for safe feeding. The cellulose, crude fiber, Ca and P contents were not affected greatly either by the dates of seeding or by the levels of N fertilization. The in vitro DM digestibility (IVDMD) was not affected markedly by any treatment.

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