Seed coat lignification level is crucial in Capsicum spp seed longevity

2021 ◽  
Author(s):  
Gaetano Bissoli ◽  
Mar Bono ◽  
Irene Martínez‐Almonacid ◽  
Estela Moreno‐Peris ◽  
Joan Renard ◽  
...  
Keyword(s):  
Seed Coat ◽  
Seed Longevity ◽  
Capsicum Spp

scholarly journals Identification of novel seed longevity genes related to oxidative stress and seed coat by genome‐wide association studies and reverse genetics

2020 ◽  
Vol 43 (10) ◽  
pp. 2523-2539 ◽  
Author(s):  
Joan Renard ◽  
Regina Niñoles ◽  
Irene Martínez‐Almonacid ◽  
Beatriz Gayubas ◽  
Rubén Mateos‐Fernández ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Seed Coat ◽  
Reverse Genetics ◽  
Association Studies ◽  
Seed Longevity ◽  
Genome Wide Association ◽  
Genome Wide Association Studies ◽  
Genome Wide ◽  
Longevity Genes

Biochemical and molecuar marker based screening of seed longevity in soybean [Glycine max ( L.) Merill ]

2018 ◽  
Author(s):  
P. V. Pawar ◽  
R. M. Naik ◽  
M. P. Deshmukh ◽  
R. D. Satbhai ◽  
S. G. Mohite
Keyword(s):  
Lipid Peroxidation ◽  
Seed Coat ◽  
Coat Color ◽  
Soybean Seed ◽  
Coat Colour ◽  
Seed Longevity ◽  
Seed Coat Color ◽  
Seed Coat Colour ◽  
Black Seed ◽  
Black Seed Coat

The soybean seed is highly susceptible to field weathering and mechanical damage which adversely affect its longevity. Mechanical injury can occur at any time during harvesting, drying and storage conditioning of seeds. The seed coat color and leachate conductivity of soybean has been correlated with seed longevity and black seed coat color has been reported to be positively correlated with better seed longevity. In order to understand the physico-chemical attributes related to soybean seed longevity, biochemical and molecular analysis of the parents exhibiting black (Birsasoya-1) and yellow seed coat colour (EC 241780) and the eleven F3 progenies of the cross exhibiting brown, yellow and black seed coat colour was carried out. The results revealed that vita-E, lignin, calcium content and activity of antioxidative enzymes appeared to be positively correlated with soybean seed longevity and levels were higher in black and brown seed coat color progenies. The lipid peroxidation rate was inversely related to membrane injury caused by ROS and comparatively much less lipid peroxidation rate was recorded in black and brown seed coat colour parents and progenies having better seed longevity. The SSR primers Satt162, Satt523 and Satt453 which are either linked with seed coat colour and seed permeability exhibited a specific size allelic fragments in soybean genotypes and crosses with better seed longevity.

Maternal Corn Environment Influences Wild-Proso Millet (Panicum miliaceum) Seed Characteristics

Weed Science ◽  
2012 ◽  
Vol 60 (1) ◽  
pp. 69-74 ◽  
Author(s):  
Martin M. Williams ◽  
Brian J. Schutte ◽  
Yim F. So
Keyword(s):  
Seed Production ◽  
Seed Coat ◽  
Sweet Corn ◽  
Seed Longevity ◽  
Principal Component Factor Analysis ◽  
Proso Millet ◽  
Millet Seed ◽  
Environment Factor ◽  
Seed Characteristics ◽  
Crop Environment

Modification of the cropping environment to make weed seed more susceptible to fatal germination or decay processes is based, in part, on the premise that seed longevity is affected by the crop-influenced environment in which seed is produced, hereafter, called thematernal crop environment. The objective of this investigation was to determine the influence of maternal crop environment on wild-proso millet seed production, germinability, and seed coat tone (i.e., lightness), a trait previously associated with seed longevity in wild-proso millet. Maternal corn environments were established by growing wild-proso millet plants in four morphologically different sweet corn hybrids in four replicates over 2 yr. Wild-proso millet seed was collected at sweet corn harvest, enumerated, characterized for seed coat tone, and tested for germination. Principal component factor analysis reduced six sweet corn traits measured between silking and harvest into a single maternal corn environment factor that accounted for 84% of the variation among crop canopies. Functional relationships between maternal corn environment factor scores and wild-proso millet seed characteristics were clarified by fitting linear models. For each unit decrease in maternal environment factor score, wild-proso millet seed production increased 1,535 seed m−2, germination increased 2.2%, and seed coat tone was 1.8% lighter. These results show the size and germinability of wild-proso millet seed was highest in less-competitive maternal corn environments characterized by a short time to crop maturity and a small crop-canopy size.

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.

Morphology and Affinities of Ampelocissites Seeds (Vitaceae: Ampelopsis clade) from the Paleogene of Texas, USA

2020 ◽  
Vol 45 (3) ◽  
pp. 478-482
Author(s):  
Steven R. Manchester
Keyword(s):  
Computed Tomography ◽  
Cross Sections ◽  
Seed Coat ◽  
Ct Scanning ◽  
Seed Morphology ◽  
Early Eocene ◽  
Micro Computed Tomography ◽  
X Ray ◽  
Fossil Seeds ◽  
Fossil Genus

Abstract—The type material on which the fossil genus name Ampelocissites was established in 1929 has been reexamined with the aid of X-ray micro-computed tomography (μ-CT) scanning and compared with seeds of extant taxa to assess the relationships of these fossils within the grape family, Vitaceae. The specimens were collected from a sandstone of late Paleocene or early Eocene age. Although originally inferred by Berry to be intermediate in morphology between Ampelocissus and Vitis, the newly revealed details of seed morphology indicate that these seeds represent instead the Ampelopsis clade. Digital cross sections show that the seed coat maintains its thickness over the external surfaces, but diminishes quickly in the ventral infolds. This feature, along with the elliptical chalaza and lack of an apical groove, indicate that Ampelocissites lytlensis Berry probably represents Ampelopsis or Nekemias (rather than Ampelocissus or Vitis) and that the generic name Ampelocissites may be useful for fossil seeds with morphology consistent with the Ampelopsis clade that lack sufficient characters to specify placement within one of these extant genera.

Influence of ultrasonication on functional components and tissue structures of seed coat powder of adzuki beans

2005 ◽  
Vol 16 (3) ◽  
pp. 249-254
Author(s):  
Tomoko Kimura ◽  
Mieko Kagaya ◽  
Michitaka Naitou ◽  
Hiroko Sasaki ◽  
Tatsuyuki Sugahara
Keyword(s):  
Seed Coat ◽  
Tissue Structures ◽  
Functional Components

Morphological peculiarities of seeds of some species of the genus Epipactis Zinn. (Orchidaceae Juss.) of Ukrainian flora

2019 ◽  
Vol 11 (1) ◽  
pp. 93-100
Author(s):  
T Ljubka ◽  
O Tsarenko ◽  
I Tymchenko
Keyword(s):  
Seed Coat ◽  
Cell Walls ◽  
Morphological Study ◽  
Population Level ◽  
Intercellular Spaces ◽  
Different Populations ◽  
Periclinal Walls ◽  
High Degree ◽  
Shape And Size ◽  
Generative Organs

The investigation of macro- and micromorphological peculiarities of seeds of four species of genus Epipactis (Orchidaceae) of Ukrainian flora were carried out. The genus Epipactis is difficult in the in in taxonomic terms and for its representatives are characterized by polymorphism of morphological features of vegetative and generative organs of plants and ability of species to hybridize. The aim of the research was to perform a comparative morphological study of seeds of E. helleborine, E. albensis, E. palustris, E. purpurata and to determine carpological features that could more accurately identify species at the stage of fruiting. A high degree of variation in the shape of the seeds in different populations within the species and overlap of most quantitative carpological characteristics of studied species are noted. There were no significant differences in micromorphological features of the structure of the testa at species or population level. The reticulate surface of the testa is characteristic of all species, the cells of testa are mostly elongated, penta-hexagonal, individual cells almost isodiametric-pentagonal. From the micropillary to the chalasal end, a noticeable change in the shape and size of the seed coat cells is not observed. There are no intercellular spaces, the anticlinal walls of adjacent cells are intergrown and the boundaries between them become invisible. The outer periclinal walls have a single, mainly longitudinal thin ribbed thickenings. Anticlinal cell walls are thick, dense, smooth. The longitudinal Anticlinal walls are almost straight, transverse - straight or sometimes curved in some cells. Epicuticular deposits on the periclinal walls are absent. It is concluded that the use of macro and micromorphological characteristics of seeds of these species for clearer diagnosis at the stage of fruiting is low informative.

Evaluation of Stable Morphological Traits in Soybean Collection Samples for Determination of Standard Varieties

2020 ◽  
pp. 67-77
Keyword(s):  
Seed Coat ◽  
Leaf Size ◽  
Flower Color ◽  
The Other ◽  
Main Stem ◽  
Complete Evaluation ◽  
Varietal Identification ◽  
Basic Color ◽  
Dark Color ◽  
Generative Organs

For identification of varieties, it is desirable to use genetically predetermined traits that are decisive for the varietal identification of the distinguishing characteristics of the varieties production and new genotypes for selection. The presence a complete evaluation of the selection samples a particular crop is the basis for the formation of informative databases characteristics the varieties of standards used in plant examination to determine the level of expression a characteristic particular genotype according to the code of their manifestation. For the 20 traits we used to identify, we identified 6 least volatile, highly trait-stable traits over the years of study to identify. These are: “coloring of the pubescence of the main stem”, “the size of the lateral leaf”, “the intensity of green leaf color”, “flower color”, “the intensity of brown bean color”, “basic color of the seed coat”. The other 14 traits are highly variable and unstable among varieties, but may be significant under certain conditions. According to the results of the research we have determined the conformity of the collection varieties by code graduation. In the study, we selected varieties with corresponding codes of attributes of the reference varieties the UPOV technique. On the basic of the color the pubescence of the main stem, 36% varieties are with grey stem pubescence. Among the standards: Apache, Alaric, Talon according to the grey color of the pubescence, we identified varieties Zolotysta, Ozzie, Diona. The 2947 564/84, Stepnaya-90, Knyazhna. The lateral leaf size is a sign that affects the increase in green mass of plants and subsequently on productivity. Graduation of the sign small size of leaf had varieties: Zuma, Ksenya; middle – Heinong 37, Yuh-30; large – 2947 564/84, Vinni, DSS 2504. The following is a sign of the intensity of leaf plate, which is divided by gradation into light, moderate and dark. Among our samples with a light degree of color, we can distinguish Diona, Sribna Ruta, and Zuma. For varieties with moderate gradation of color are selected: Perlyna, 93/99, Knyazhna. To the dark color of the leaf plate we attributed the varieties: Stepnaya-90, Ozzie. Among the varieties we studied of the basics of flower color 37% varieties are with a white flower, and 63% with a purple. According to the varieties of standards: Chandor, Cresir, Toreador to the white color of the flower we attributed varieties Knyazhna, Ozzie, Zolotysta. With the purple color of the flower we have selected varieties: 93/99, Zhemchuzhna, Heinong 37. On the basis of the intensity of brown color bean, which characterizes the generative organs of the plant, is divided into weak, moderate and strong, but the other identifiers there are gradations: sandy, gray, light brown, brown and dark brown, so we decided what would be better identify by color gradation. To the sandy color of the beans we attributed varieties Perlyna, Yuh-30; gray – Sribna Ruta; light brown – Kobza, Knyazhna; brown – Ksenya; dark brown – Zhemchuzhna, Vinni. Important features that identify the description of varieties include basic color of the seed coat, which affects the taste of the seeds. In particular, the seeds are divided by color into yellow – Kobza, Yuh-30; yellow-green – Vinni, Luch Nadezhdy; green – Heorhina; light brown – 2947 564/84, brown – DSS 2504; dark brown – 2974 YS-24 and black color – not detected. Following the results of the previous collection of soybean varieties from the morphological sings of vegetative, generative organs of plants, it was possible to identify varieties with stable manifestation of standard identifying sings of soybean. Collection varieties with one standard characteristics: Heinong 37, Luch Nadezhdy, DSS 2504, 2974 YS-24; two signs: Zolotysta, Diona, Stepnaya-90, Zuma, Ksenya, Heorhina, Sribna Ruta, Perlyna, 93/99, Zhemchuzhna; three signs: Ozzie, 2947 564/84, Yuh-30, Vinni, Knyazhna.

Sign in / Sign up

Export Citation Format

Share Document