Novel trichomes increase stamen stiffness in mung bean flowers

1994 ◽  
Vol 74 (2) ◽  
pp. 335-337
Author(s):  
A. Liptay ◽  
P. Vandierendonck ◽  
A. M. J. Liptay
Keyword(s):  
Key Words ◽  
Vigna Radiata ◽  
Mung Bean ◽  
Structural Strength ◽  
Fold Increase ◽  
Pollen Transfer ◽  
Repetitive Pattern

The exterior of the cylindrical stamens of mung bean [Vigna radiata (L.) Wilczek] flowers are replete with trichomes attached at both ends to the outside periphery of the stamen. The resultant repetitive pattern from below the base of the stamen to the anther resembles a multi-stranded rope configuration. Tests on models with or without simulated doubly attached, trichome-like structures, indicated about a 12-fold increase in stiffness with addition of the trichome-like structures. It is hypothesized that the function of the trichomes on the stamens is to increase their rigidity to ensure successful pollen transfer from the anther as the stigma elongates past the anther. In contrast to the trichomes on the stamen, those on the surface of the style are like a coarse-haired brush apparently designed to collect pollen as the stigma extends past the anthers. Key words: structural strength, stiffness, Vigna radiata

Localization of amylase activity in cotyledons of germinated mung bean seeds

1991 ◽  
Vol 69 (7) ◽  
pp. 1501-1506 ◽  
Author(s):  
Yasuko Kaneko ◽  
Hisashi Matsushima ◽  
Yukio Morohashi
Keyword(s):  
Key Words ◽  
Seed Coat ◽  
Vigna Radiata ◽  
Mung Bean ◽  
Amylase Activity ◽  
The Other ◽  
Vascular Bundles ◽  
Starch Granules ◽  
Developmental Patterns ◽  
Cell Layers

Developmental patterns of amylase activity in mung bean (Vigna radiata) cotyledons were observed by histochemical methods. In axis-attached cotyledons, the development of amylase activity and the decompostion of starch grains occurred first in cells located farthest from vascular bundles, and 3 days after imbibition, starch granules appeared to remain intact only in two to three cell layers around the vascular bundles. In axis-detached cotyledons, on the other hand, no conspicuous change in amylolytic activity was detected. When cotyledons were allowed to imbibe water through the surface not covered by the seed coat, amylase activity developed, even if they were detached from the axis. However, the developmental patterns of the activity were quite different from those with attached cotyledons; high amylase activity was detected in the cell layers beneath the epidermis of the surface not covered by the seed coat. These histochemical observations are related to previous results of biochemical experiments. Key words: amylase development, cotyledons, germination, histochemistry, mung bean, Vigna radiata.

Linking changes in chlorophyll a fluorescence with drought stress susceptibility in mung bean [ Vigna radiata (L.) Wilczek]

2021 ◽  
Author(s):  
Hussan Bano ◽  
Habib‐ur‐Rehman Athar ◽  
Zafar Ullah Zafar ◽  
Hazem M. Kalaji ◽  
Muhammad Ashraf
Keyword(s):  
Drought Stress ◽  
Chlorophyll A ◽  
Chlorophyll A Fluorescence ◽  
Vigna Radiata ◽  
Mung Bean ◽  
Stress Susceptibility

Nanoplastic ingestion induces behavioral disorders in terrestrial snails: trophic transfer effects via vascular plants

2020 ◽  
Vol 7 (3) ◽  
pp. 975-983 ◽  
Author(s):  
Yooeun Chae ◽  
Youn-Joo An
Keyword(s):  
Vigna Radiata ◽  
Mung Bean ◽  
Vascular Plants ◽  
Trophic Transfer ◽  
Achatina Fulica ◽  
Transfer Effects ◽  
Terrestrial Environment ◽  
Plastic Debris ◽  
Terrestrial Snails ◽  
African Giant Snail

This study investigated the transfer of plastic debris in a terrestrial environment from the soil to a plant (the mung bean, Vigna radiata), and then to a consumer (the African giant snail, Achatina fulica).

Scanning electron microscopy of native biofilms on mung bean sprouts

2003 ◽  
Vol 49 (1) ◽  
pp. 45-50 ◽  
Author(s):  
William F Fett ◽  
Peter H Cooke
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Food Safety ◽  
Vigna Radiata ◽  
Mung Bean ◽  
Fibrillar Material ◽  
Mung Bean Sprouts ◽  
Native Microflora ◽  
Bean Sprouts ◽  
Scanning Electron

Native biofilms present on the adaxial surface of cotyledons of mung bean sprouts (Vigna radiata) were studied by use of scanning electron microscopy. Biofilms were abundant on the cotyledon surfaces and were comprised of rod-shaped bacteria, cocci-shaped bacteria, or yeasts, often with one type of microbe predominant. In contrast to our earlier study of biofilms on green sprouts (alfalfa, clover, broccoli, and sunflower), yeast and cocci were abundant on mung bean. Filamentous fungi were not observed. Sheet-like or fibrillar material (presumably composed of secreted microbial polysaccharides, proteins, lipids, and nucleic acids) fully or partially covered the biofilms. Biofilms up to 5 mm in length were observed, and some biofilms were comprised of more than just a monolayer of microbial cells. Native biofilms on sprout surfaces undoubtedly play an important role in the ecology of plant epiphytic microbes and may also afford protected sites for plant and human bacterial pathogens.Key words: mung bean sprouts, biofilms, native microflora, scanning electron microscopy, food safety.

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