scholarly journals The Relationship of the Contents of Calcium, Potassium and Pectin with Cracking of Seed Coat of Soybean (Glycine max (L.) Merr.)

2011 ◽  
Vol 80 (4) ◽  
pp. 433-440
Author(s):  
Takayo Saikusa ◽  
Shin-ichiro Kawase ◽  
Toshiroh Horino ◽  
Kyouko Toda ◽  
Yoshiyuki Nakamura
Author(s):  
R. W. Yaklich ◽  
E. L. Vigil ◽  
W. P. Wergin

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.


2009 ◽  
Vol 19 (3) ◽  
pp. 145-153 ◽  
Author(s):  
Suzanne M. Kosina ◽  
Alexander Castillo ◽  
Steven R. Schnebly ◽  
Ralph L. Obendorf

AbstractSucrose, raffinose and stachyose accumulate in soybean [Glycine max L. (Merrill)] embryos during seed maturation. To determine the relationship of plant maternal composition on seed composition, soluble carbohydrates in three 1-cm2 leaf punches at three plant growth stages (R2, R3, R6) and in seed coat cup exudates in planta were analysed at four 30-min intervals on soybean plants (R5) with low-raffinose, low-stachyose (LRS) seeds expressing the mutant stc1 phenotype; low-raffinose, low-stachyose and low-phytin (LRSP1, LRSP2) seeds expressing the mutant mips phenotype; or normal raffinose, stachyose and phytin (CHECK) seeds expressing the Stc1 and Mips phenotype. Leaf sucrose (23.6 μg cm− 2), myo-inositol (9.3 μg cm− 2), d-chiro-inositol (6.7 μg cm− 2), d-ononitol (0.76 μg cm− 2), d-pinitol (50.1 μg cm− 2) and total soluble carbohydrates (107.1 μg cm− 2) were not significantly different between phenotypes. d-chiro-Inositol, myo-inositol, d-pinitol and sucrose were unloaded from soybean seed coat cups in planta at decreasing rates over the four sequential periods of sampling. Unloading rates of sucrose and myo-inositol were highest for LRS, d-pinitol was highest for LRSP2, and d-chiro-inositol was not different between LRS, LRSP1, LRSP2 and CHECK. Free cyclitols were 60% of total soluble carbohydrates in leaves and 20% in seed coat cup exudates. Except for sucrose and d-pinitol, seed phenotype had little influence on the composition of compounds unloaded from seed coats to maturing embryos of low-raffinose, low-stachyose seeds. Maternally supplied cyclitols may contribute, in part, to changes in the composition of cyclitol galactosides stored in mature seeds.


2013 ◽  
Vol 5 (3) ◽  
pp. 1065-1076 ◽  
Author(s):  
Kye Man Cho ◽  
Tae Joung Ha ◽  
Yong Bok Lee ◽  
Woo Duck Seo ◽  
Jun Young Kim ◽  
...  

Agriculture ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 248 ◽  
Author(s):  
Zhen Wang ◽  
Masoume Amirkhani ◽  
Suemar A.G. Avelar ◽  
Daibin Yang ◽  
Alan G. Taylor

Systemic seed treatment uptake was investigated in seeds and seedlings using fluorescent tracers to mimic systemic agrochemicals. Soybean was used as the model as soybean has the permeable seed coat characteristic to both charged and noncharged molecules. The purpose of the paper is to (1) screen 32 fluorescent tracers and then use optimal tracers for seed and seedling uptake, (2) investigate varietal differences in seed uptake, (3) examine the distribution of tracer uptake into 14-day-old seedlings, and (4) study the relationship between seed treatment lipophilicity, measured as log P on seed and root uptake. The major chemical families that displayed both seed and seedling uptake were coumarins and xanthenes. Seed uptake of coumarin 120 ranged from 1.1% to 4.8% of the applied seed treatment tracer from 15 yellow-seeded varieties. Rhodamine B, a xanthene compound uptake in seedlings, showed translocation from the applied seed treatment to all seedling tissues. Most of the tracer was measured in the hypocotyl and root, with lesser amounts in the epicotyl and true leaves. Log P is well documented in the literature to model systemic uptake by roots, but log P of the tracers were not related to seed uptake.


Weed Science ◽  
1983 ◽  
Vol 31 (6) ◽  
pp. 796-800 ◽  
Author(s):  
E. James Retzinger ◽  
R. Larry Rogers ◽  
Ronald P. Mowers

The performance of BAS 9052 {2-[1-(ethoxyimino)-butyl]-5-[2-(ethylthio)-propyl]-3-hydroxy-2-cyclohexen-1-one} was evaluated when applied postemergence to rhizome and seedling johnsongrass [Sorghum halepense(L.) Pers. # SORHA] in soybeans [Glycine max(L.) Merr. ‘Bragg’ and ‘Centennial’] when the soybeans had four or five trifoliate leaves (V3 to V4 stages) or when they had six to eight trifoliate leaves (V5 to V7 growth stages). The degree of weed control was more strongly associated with rainfall conditions than with the size of the johnsongrass. An exponential equation was used to describe the relationship of soybean seed yield to BAS 9052 rate. BAS 9052 applications of 0.28 kg ai/ha provided an estimated 98% of the potential soybean yield increase when rainfall was adequate but, 0.41 kg ai/ha was required when the plants were grown under moisture stress. Soybean yields were increased by 260 kg/ha when BAS 9052 was applied at the V3 to V4 compared to the V5 to V7 growth stage.


2004 ◽  
Vol 82 (5) ◽  
pp. 654-662 ◽  
Author(s):  
Fengshan Ma ◽  
Carol A Peterson ◽  
Mark Gijzen

A soybean (Glycine max (L.) Merr.) cotyledon has a concave region on its abaxial center called a pit, and the seed coat has a corresponding convex region on its inner surface called an antipit. While it is clear that the pit is lined with large epidermal cells, the anatomical identity of the antipit has been a subject of confusion. The inner surface of the seed coat consists of a compressed endosperm tissue that is subtended by an aleurone layer. In the antipit region of the seed coat, additional endosperm cells are situated between the aleurone layer and the compressed endosperm tissue. These endosperm cells, called cone cells, are similar to ordinary aleurone cells in basic structure. In the present study, it is demonstrated that the surface ornamentations of the antipit are a print of the pit on the compressed endosperm tissue. The functional aspects of the antipit–pit complex are not known. It was previously postulated that the antipit–pit region has an enhanced capability of nutrient translocation to the growing embryo, but there is little evidence to support this hypothesis. Alternatively, the antipit–pit association may provide a structural feature that anchors the embryo within the seed coat while contributing to an overall spherical shape of the seed.Key words: antipit, endosperm, Glycine max, pit, seed coat, soybean.


Plant Disease ◽  
2003 ◽  
Vol 87 (4) ◽  
pp. 413-417 ◽  
Author(s):  
G. Koning ◽  
D. M. TeKrony ◽  
S. A. Ghabrial

Soybean mosaic virus (SMV) infection predisposes soybean (Glycine max) seed to Phomopsis spp. seed infection and may induce seedcoat mottling. The extent of seedcoat mottling associated with the accumulation of SMV or Phomopsis spp. infection of the seedcoat was investigated in 1996 and 1997. Plants of two SMV-susceptible cultivars, ‘Clark’ and ‘Williams’, were sap inoculated with the G2 strain of SMV at growth stage R2. Control plants (SMV-resistant isolines L78-434 and L78-379, respectively) were not inoculated. Harvested seed were evaluated visually for seedcoat mottling and sorted into four categories (severe, banded, blemish, and none) according to the degree of seedcoat pigmentation. Seed infection with Phomopsis spp. was determined and SMV accumulation was assessed by enzyme-linked immunosorbent assay and nucleic acid hybridization analysis. Phomopsis spp. were isolated from seed of all mottling categories, with the incidence of infection increasing as the degree of seedcoat mottling increased. SMV was detected in both mottled and nonmottled seedcoats, with generally higher levels of SMV in mottled seedcoats. However, the relationship of SMV titer to seedcoat mottling was inconsistent across cultivars and years. Thus, the extent of seedcoat mottling was not directly related to the accumulation of SMV in the seedcoat.


2020 ◽  
Vol 11 (9) ◽  
pp. 7321-7339 ◽  
Author(s):  
Yoko Yamashita ◽  
Hiroyuki Sakakibara ◽  
Toshiya Toda ◽  
Hitoshi Ashida

Black soybean (Glycine max L.), a cultivar containing abundant polyphenols in its seed coat such as anthocyanins and flavan-3-ols, has been reported to possess various health benefits toward lifestyle diseases.


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