Effect of gibberrelic acid on α-amylase activity in heat stressed mung bean (Vigna radiata L.) seedlings

2012 ◽  
Vol 11 (52) ◽  
Author(s):  
Simeen Mansoor
1991 ◽  
Vol 69 (7) ◽  
pp. 1501-1506 ◽  
Author(s):  
Yasuko Kaneko ◽  
Hisashi Matsushima ◽  
Yukio Morohashi

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.


2021 ◽  
Author(s):  
Hussan Bano ◽  
Habib‐ur‐Rehman Athar ◽  
Zafar Ullah Zafar ◽  
Hazem M. Kalaji ◽  
Muhammad Ashraf

2020 ◽  
Vol 7 (3) ◽  
pp. 975-983 ◽  
Author(s):  
Yooeun Chae ◽  
Youn-Joo An

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).


2003 ◽  
Vol 49 (1) ◽  
pp. 45-50 ◽  
Author(s):  
William F Fett ◽  
Peter H Cooke

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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