scholarly journals Ability of soybean (Glycine max L. Merr.) genotypes to produce somatic embryos on a medium containing a low concentration of sucrose.

1990 ◽  
Vol 40 (3) ◽  
pp. 371-375 ◽  
Author(s):  
Takao KOMATSUDA
Keyword(s):  
Glycine Max ◽  
Somatic Embryos ◽  
Low Concentration ◽  
Glycine Max L

scholarly journals Approach of monocarpic senescence control by nitrogen manipulation in mungbean and cowpea

2018 ◽  
Vol 16 (3) ◽  
pp. 386-395
Author(s):  
Md. Matiul Islam ◽  
Seijun Sakamoto ◽  
Shao -Hui Zheng
Keyword(s):  
Glycine Max ◽  
Nitrogen Supply ◽  
Nitrogen Remobilization ◽  
Vigna Sinensis ◽  
Low Concentration ◽  
Nitrogen Redistribution ◽  
Nitrogen Concentrations ◽  
Glycine Max L ◽  
Cowpea Variety ◽  
Monocarpic Senescence

Pods start growing almost at the same time and mature simultaneously in soybean (Glycine max (L.) Merrill) plants. But mungbean (Vigna radiata L. Wilczek) and cowpea (Vigna sinensis Endl.) perform unsynchronized pod maturity. To overcome unsynchronized pod maturity the nitrogen redistribution aspects of mungbean and cowpea were investigated based on the linkage of soybean. Pot experiment was conducted using a nodulating mungbean variety (cv. XANH NINH THUAN) in 2015 and cowpea variety (cv. IT98K-205-8) in 2016 in the vinyl house at Saga University in Japan. During the experiment, nutrient solution was applied by changing nitrogen concentrations to 5, 25 and 100 ppm (control). Mungbean plants provided with low concentration of 5 and 25 ppm of nitrogen supply was not capable to produce continuous pods. Cowpea plants supplied with low concentration of nitrogen was also unable to produce successful pods continuously. Insufficient nitrogen hampered the continuation of pod setting in both the cases, might be due to, all the vegetative stored nitrogen had been utilized for seed development during the vegetative phase before pod setting. In case of 100 ppm nitrogen supply, for both mungbean and cowpea, no senescence and nitrogen remobilization occurred. However, researches showed that soybean typically undergoes the remobilization evidence, i.e., monocarpic senescence, in 100 ppm of nitrogen supply. J.Bangladesh Agril. Univ. 16(3): 386–395, December 2018

scholarly journals Somatic embryogenesis from immature cotyledons of soybean (Glycine max (L.) Merr.): ontogeny of somatic embryos

2006 ◽  
Vol 49 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Karla Galvão Bezerra dos Santos ◽  
Jorge Ernesto de Araújo Mariath ◽  
Maria Cecília C. Moço ◽  
Maria Helena Bodanese-Zanettini
Keyword(s):  
Somatic Embryogenesis ◽  
Glycine Max ◽  
Somatic Embryos ◽  
Zygotic Embryos ◽  
Immature Zygotic Embryos ◽  
Immature Cotyledons ◽  
Glycine Max L

Soybean somatic embryos obtained from immature zygotic embryos were histologically analyzed in order to determine possible ontogenetic routes followed by these embryos. The proembryo stage and globular, heart-shaped, torpedo and cotyledonary embryo stages were found, closely resembling the ontogeny of zygotic embryos. However, the absence of a characteristic suspensor as well as the delay in the establishment of inner organization were the main differences between these two embryogenic processes.

A simple method for the recovery of multiple fertile plants from individual somatic embryos of soybean [Glycine max (L.) merrill]

1991 ◽  
Vol 27 (3) ◽  
pp. 153-157 ◽  
Author(s):  
M. S. Wright ◽  
K. L. Launis ◽  
R. Novitzky ◽  
J. H. Duesing ◽  
C T. Harms
Keyword(s):  
Glycine Max ◽  
Somatic Embryos ◽  
Simple Method ◽  
Glycine Max L

Induction of somatic embryos in cotyledonary tissue of soybean, Glycine max L. Merr

1984 ◽  
Vol 3 (6) ◽  
pp. 215-218 ◽  
Author(s):  
B�rbel Lippmann ◽  
Gunter Lippmann
Keyword(s):  
Glycine Max ◽  
Somatic Embryos ◽  
Glycine Max L

scholarly journals Anatomical Study of Somatic Embryogenesis in Glycine max (L.) Merrill

2002 ◽  
Vol 45 (3) ◽  
pp. 277-286 ◽  
Author(s):  
Juliana Aparecida Fernando ◽  
Maria Lúcia Carneiro Vieira ◽  
Isaías Olívio Geraldi ◽  
Beatriz Appezzato-da-Glória
Keyword(s):  
Somatic Embryogenesis ◽  
Glycine Max ◽  
Somatic Embryos ◽  
Anatomical Study ◽  
Zygotic Embryos ◽  
Immature Zygotic Embryos ◽  
Meristematic Cells ◽  
Anatomical Analysis ◽  
Glycine Max L ◽  
Cotyledonary Explant

A comparative anatomical analysis of somatic embryogenesis in two soybean (Glycine max (L.) Merrill) genotypes was carried out. The somatic embryos were originated from cotyledonary explants obtained from immature zygotic embryos. The medium used for somatic embryogenesis induction was Murashige and Skoog, 1962, salts and Gamborg et al., 1968, vitamins (MSB) supplemented with 0.8 mg.L-1 of 2,4-D for genotype PI 123439 and 40 mg.L-1 of 2,4-D for ‘Williams 82’. Globular structures, constituted by meristematic cells, originated from subepidermal cell divisions of the cotyledonary mesophyll. In PI 123439, the globular structures presented tracheary differentiation among meristematic cells and they could follow distinct morphogenetic process depending on their location along the explant. For ‘Williams 82’ it was observed globular structures along the cotyledonary explant surface. They gave rise to somatic embryos. These embryos showed different morphologies and they were classified based on their shape and number of cotyledons. The ability of these morphological types to convert to plantlets was discussed.

Prevalence of the pit and antipit in the genus Glycine

1987 ◽  
Vol 45 ◽  
pp. 986-987
Author(s):  
R. W. Yaklich ◽  
E. L. Vigil ◽  
W. P. Wergin
Keyword(s):  
Amino Acids ◽  
Endoplasmic Reticulum ◽  
Glycine Max ◽  
Seed Coat ◽  
Cell Types ◽  
Abaxial Surface ◽  
Legume Seed ◽  
Initial Report ◽  
Cone Cells ◽  
Glycine Max L

The legume seed coat is the site of sucrose unloading and the metabolism of imported ureides and synthesis of amino acids for the developing embryo. The cell types directly responsible for these functions in the seed coat are not known. We recently described a convex layer of tissue on the inside surface of the soybean (Glycine max L. Merr.) seed coat that was termed “antipit” because it was in direct opposition to the concave pit on the abaxial surface of the cotyledon. Cone cells of the antipit contained numerous hypertrophied Golgi apparatus and laminated rough endoplasmic reticulum common to actively secreting cells. The initial report by Dzikowski (1936) described the morphology of the pit and antipit in G. max and found these structures in only 68 of the 169 seed accessions examined.

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