An examination of the phytotoxicity of the water shield,Brasenia schreberi

1987 ◽  
Vol 13 (9) ◽  
pp. 1935-1940 ◽  
Author(s):  
Stella D. Elakovich ◽  
Jean W. Wooten
Keyword(s):  
Brasenia Schreberi ◽  
Water Shield

scholarly journals Determination of the minimum population size for ex situ conservation of water-shield (Brasenia schreberi J.F. Gmelin) inferred from AFLP analysis

2012 ◽  
Vol 35 (4) ◽  
pp. 301-306 ◽  
Author(s):  
Changkyun Kim ◽  
Hye Ryun Na ◽  
Jongduk Jung ◽  
Hojoon Kim ◽  
Jin-Oh Hyun ◽  
...  
Keyword(s):  
Population Size ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
Aflp Analysis ◽  
Brasenia Schreberi ◽  
Water Shield

Antioxidant and Anti-Inflammatory Activities of Quercetin 7-O-β-D-Glucopyranoside from the Leaves of Brasenia schreberi

2011 ◽  
Vol 14 (10) ◽  
pp. 1127-1134 ◽  
Author(s):  
Jean Legault ◽  
Tommy Perron ◽  
Vakhtang Mshvildadze ◽  
Karl Girard-Lalancette ◽  
Stéphanie Perron ◽  
...  
Keyword(s):  
Brasenia Schreberi ◽  
Anti Inflammatory

scholarly journals Optimizing the Extraction and Encapsulation of Mucilage from Brasenia Schreberi

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 822 ◽  
Author(s):  
Qingying Luo ◽  
Min Wu ◽  
Yanan Sun ◽  
Junxia Lv ◽  
Yu Zhang ◽  
...  
Keyword(s):  
High Speed ◽  
Biological Activities ◽  
Extraction Process ◽  
Extraction Temperature ◽  
Soluble Fiber ◽  
Capsule Formulation ◽  
Brasenia Schreberi ◽  
Solid Ratio ◽  
Assisted Extraction ◽  
Actual Yield

The mucilage from Brasenia schreberi (BS) exhibits various biological activities, including antialgal, antibacterial, soluble-fiber properties, and excellent lubricating behavior. Thus, the extraction and wide use of mucilage in the food industry are crucial. In this study, the high-speed shear-assisted extraction of mucilage from BS was optimized by using response surface methodology (RSM). The optimal extraction conditions were as follows: Extraction temperature of 82 °C, extraction time of 113 min, liquid–solid ratio of 47 mL/g, and shear speed of 10,000 rpm. Under these conditions, the actual yield of BS mucilage was 71.67%, which highly matched the yield (73.44%) predicted by the regression model. Then, the BS mucilage extract was powdered to prepare the capsule, and the excipients of the capsule were screened using a single-factor test to improve the disintegration property and flowability. The final capsule formulation, which consisted of: 39% BS mucilage powder (60 meshes); 50% microcrystalline cellulose (60 meshes) as the filler; both 10% sodium starch glycolate and PVPP XL-10 (3:1, 60 meshes) as the disintegrant; both 1% colloidal silicon dioxide and sodium stearyl fumarate (1:1, 100 meshes) as the glidant by weight; were used for preparing the weights of a 320 mg/grain of capsule with 154.7 ± 0.95 mg/g polysaccharide content. Overall, the optimized extraction process had a high extraction rate for BS mucilage and the capsule formulation was designed reasonably.

Mechanism of Biological Liquid Superlubricity of Brasenia schreberi Mucilage

Langmuir ◽  
2014 ◽  
Vol 30 (13) ◽  
pp. 3811-3816 ◽  
Author(s):  
Pengxiao Liu ◽  
Yuhong Liu ◽  
Ye Yang ◽  
Zhe Chen ◽  
Jinjin Li ◽  
...  
Keyword(s):  
Brasenia Schreberi ◽  
Biological Liquid ◽  
Liquid Superlubricity

Mucilage reduces leaf herbivory in Schreber’s watershield, Brasenia schreberi J.F. Gmel. (Cabombaceae)

Botany ◽  
2014 ◽  
Vol 92 (5) ◽  
pp. 412-416 ◽  
Author(s):  
K.A. Thompson ◽  
D.M. Sora ◽  
K.S. Cross ◽  
J.M. St. Germain ◽  
K. Cottenie
Keyword(s):  
Comparative Study ◽  
Aquatic Plant ◽  
Insect Herbivores ◽  
Abaxial Surface ◽  
Herbivore Damage ◽  
Brasenia Schreberi ◽  
Wide Range ◽  
Antiherbivore Defenses ◽  
Leaf Herbivory

Insect herbivores negatively affect plants by consuming biomass that could otherwise be used for growth or reproduction. To reduce their impact, plants have evolved a wide range of antiherbivore defenses. Schreber’s watershield (Brasenia schreberi J.F. Gmel.; Cabombaceae) is a freshwater, aquatic plant that produces a thick mucilage on the underside of leaves and all underwater organs. The mucilage has been proposed as a mechanism of defense against herbivory, but this hypothesis is untested. We conducted a comparative study to determine whether the quantity of mucilage on the underside of leaves is associated with herbivore damage on the leaves. We found that leaves with the thickest mucilage layer were the least damaged. To determine whether mucilage is directly responsible for defense against herbivores, we conducted a manipulative study where we removed the mucilage from the abaxial surface of leaves. We found that demucilated leaves experienced higher amounts of herbivore damage than leaves with their mucilage left intact. We conclude that the mucilage produced by B. schreberi functions to reduce herbivory on leaves, although its association with underwater herbivores and its specific antiherbivore properties remain unknown.

scholarly journals Open-label study of effects of dietary supplement with water shield extract and sake cake powder on the skin condition of healthy adult females

2018 ◽  
Vol 18 (3) ◽  
pp. 59-61
Author(s):  
Akiko Takashima ◽  
Kimihiko Sano ◽  
Masayo Murakami ◽  
Fuyumi Matsui ◽  
Akira Sasaki ◽  
...  
Keyword(s):  
Dietary Supplement ◽  
Healthy Adult ◽  
Skin Condition ◽  
Open Label ◽  
Open Label Study ◽  
Label Study ◽  
Adult Females ◽  
Water Shield

scholarly journals Flame Cultivation for Controlling Weeds

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 696a-696
Author(s):  
Richard L. Parish
Keyword(s):  
Cell Walls ◽  
Public Perception ◽  
Sweet Corn ◽  
Vegetable Crops ◽  
Limited Efficacy ◽  
Lima Beans ◽  
Gas Flame ◽  
Cotton Farmers ◽  
Water Shield ◽  
Selection Of

Flame “cultivation” for weed control was developed about 50 years ago. The practice was very popular with Southern cotton farmers through the 1950s and 1960s, but lost favor when petroleum prices rose drastically in the 1970s. There is now a new interest in the practice of flame cultivation as a partial or total replacement for herbicides in vegetable crops. This interest is fueled by three factors: 1) an increasingly negative public perception of herbicides on vegetables, 2) a very limited selection of herbicides labeled for vegetables, and 3) limited efficacy of some of the herbicides that are registered. Flame cultivation, in combination with mechanical cultivation, can replace or supplement herbicides in some vegetable crops. The mode of action of flame cultivation is the bursting of cell walls in the weeds as the weeds are heated by a carefully directed LP gas flame. With most vegetable crops, the crop plants must be protected in some manner. This can be done with a water shield (flat fan water spray), height differential between weeds and crop, physical shield, etc. Much of the early work on flame cultivation of vegetables was done with sweet corn. Work is now underway on flame cultivation of lima beans and southernpeas, where multiple flame cultivations have proven effective at controlling weeds for which no herbicide is available.

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