Effect of pollination on cell division, cell enlargement, and endogenous hormones in fruit development in a gynoecious cucumber

2008 ◽  
Vol 116 (1) ◽  
pp. 1-7 ◽  
Author(s):  
P. Boonkorkaew ◽  
S. Hikosaka ◽  
N. Sugiyama
Keyword(s):  
Cell Division ◽  
Fruit Development ◽  
Endogenous Hormones ◽  
Cell Enlargement ◽  
Division Cell

scholarly journals Fruit Growth Stage Transitions in Two Mango Cultivars Grown in a Mediterranean Environment

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1332
Author(s):  
Alessandro Carella ◽  
Giuseppe Gianguzzi ◽  
Alessio Scalisi ◽  
Vittorio Farina ◽  
Paolo Inglese ◽  
...  
Keyword(s):  
Cell Division ◽  
Fruit Development ◽  
Cell Expansion ◽  
Mangifera Indica ◽  
Fruit Growth ◽  
Absolute Growth ◽  
Early Ripening ◽  
Division Cell ◽  
Fruit Harvest ◽  
The Relationship

Studying mango (Mangifera indica L.) fruit development represents one of the most important aspects for the precise orchard management under non-native environmental conditions. In this work, precision fruit gauges were used to investigate important eco-physiological aspects of fruit growth in two mango cultivars, Keitt (late ripening) and Tommy Atkins (early-mid ripening). Fruit absolute growth rate (AGR, mm day−1), daily diameter fluctuation (ΔD, mm), and a development index given by their ratio (AGR/ΔD) were monitored to identify the prevalent mechanism (cell division, cell expansion, ripening) involved in fruit development in three (‘Tommy Atkins’) or four (‘Keitt’) different periods during growth. In ‘Keitt’, cell division prevailed over cell expansion from 58 to 64 days after full bloom (DAFB), while the opposite occurred from 74 to 85 DAFB. Starting at 100 DAFB, internal changes prevailed over fruit growth, indicating the beginning of the ripening stage. In Tommy Atkins (an early ripening cultivar), no significant differences in AGR/ΔD was found among monitoring periods, indicating that both cell division and expansion coexisted at gradually decreasing rates until fruit harvest. To evaluate the effect of microclimate on fruit growth the relationship between vapor pressure deficit (VPD) and ΔD was also studied. In ‘Keitt’, VPD was the main driving force determining fruit diameter fluctuations. In ‘Tommy Atkins’, the lack of relationship between VPD and ΔD suggest a hydric isolation of the fruit due to the disruption of xylem and stomatal flows starting at 65 DAFB. Further studies are needed to confirm this hypothesis.

Postpollination placental development of a diploid Solatium tuberosum

1988 ◽  
Vol 66 (9) ◽  
pp. 1813-1817 ◽  
Author(s):  
A. Randall Olson
Keyword(s):  
Solanum Tuberosum ◽  
Cell Division ◽  
Mitotic Activity ◽  
Solanum Tuberosum L ◽  
Cell Enlargement ◽  
Placental Development ◽  
Developing Seeds ◽  
Solatium Tuberosum

Gynoecial placentation of Solanum tuberosum L. is axile with each parenchymatous placenta covered with numerous ovules. Three days after pollination, mitotic activity in the placental surface and subjacent layers initiates tissue proliferations, which develop between the ovules. Continued cell division and subsequent cell enlargement result in expanded placental projections, which separate the developing seeds from one another and form an interface with the inner pericarp within 10 – 12 days after pollination. Eventually, the placenta fills the remaining ovarian locular space and embeds the seeds.

Patterns of cell division, cell death and chondrogenesis in cultured aggregates of normal and talpid3 mutant chick limb mesenchyme cells

Development ◽  
1972 ◽  
Vol 27 (1) ◽  
pp. 245-260
Author(s):  
D. A. Ede ◽  
O. P. Flint
Keyword(s):  
Cell Death ◽  
Cell Division ◽  
Limb Bud ◽  
Intercellular Matrix ◽  
Blue Stain ◽  
Special Pattern ◽  
Mesenchyme Cells ◽  
Division Cell ◽  
Made In

Aggregates were prepared from dissociated mesenchyme cells obtained from normal and talpid mutant chick limb buds at stage 26 and were maintained for 4 days in culture. They were shown by autoradiographic techniques to consist initially of populations of unifoimly dedifferentiated cells within which chondrogenesis was initiated between 1 and 2 days, leading to the formation of areas of precartilage in the interior of the aggregates. Measurements of cell population density, cell death and cell division were made in precartilage and non-cartilage regions on sections prepared from normal and mutant aggregates fixed at 1-day intervals and were related to the pattern of chondrogenesis. Non-cartilage areas consisted of cells surrounding the precartilage areas and extended to the surface of the aggregate; these cells showed no special pattern or histochemical reaction. Precartilage areas consisted of one or more “;condensations”, comprising cells arranged in concentric rings around a central cell or group of cells, characterized by uptake of [35S]sulphate and taking up alcian blue stain in the intercellular matrix. Chondrogenesis was initiated al the condensation foci and spread centrifugally. Condensations were arranged in a simple pattern, roughly equidistantly from each other and never at the surface of the aggregate. The shape and arrangement of the cells comprising them suggested that they were formed by a process of aggregation towards the condensation foci. The relation of these observations to events in the intact limb bud developing in vivo is discussed.

Anatomy of Wild Garlic Bulbs During and Subsequent to After-Ripening

Weed Science ◽  
1972 ◽  
Vol 20 (3) ◽  
pp. 233-237 ◽  
Author(s):  
J. F. Stritzke ◽  
E. J. Peters
Keyword(s):  
Cell Division ◽  
Microscopic Examination ◽  
Cell Elongation ◽  
Leaf Primordia ◽  
Root Primordia ◽  
Ripening Period ◽  
Shoot Primordia ◽  
Division Cell ◽  
Wild Garlic

Microscopic examination of central and soft offset bulbs of wild garlic(Allium vinealeL.) at senescence of the parent plants in May and June revealed embryonic plants with numerous root primordia and four or five shoot primordia. Hardshell bulbs and aerial bulblets contained only one or two root primordia and three leaf primordia. The embryonic plants of central, soft offset, and hardshell bulbs elongated slowly during the after-ripening period. Rapid cell division, cell elongation, and initiation of new leaves took place after termination of the after-ripening period in all but the dormant hardshell bulbs. In November, new hardshell bulbs could be seen at the base of plants developed from central and soft offset bulbs.

DEVELOPMENTAL STUDIES OF THE APPLE FRUIT IN THE VARIETIES McINTOSH RED AND WAGENER: II. AN ANALYSIS OF DEVELOPMENT

1941 ◽  
Vol 19c (10) ◽  
pp. 371-382 ◽  
Author(s):  
Mary MacArthur ◽  
R. H. Wetmore
Keyword(s):  
Cell Division ◽  
Cell Size ◽  
Fruit Size ◽  
Apple Fruit ◽  
Vascular Bundles ◽  
Developmental Studies ◽  
Cell Enlargement ◽  
Ground Tissue ◽  
Fundamental Pattern

Growth in the various tissues of the fruit of a McIntosh Red and a Wagener tree, both self-pollinated, is compared. For several days succeeding pollination no increase in fruit size is apparent. Fertilization is followed by general cell division and cell enlargement. The period of cell division varies with the tissue and with the variety. Final cell size is reached first by the cells of those tissues near the centre of the apple. Impressed upon the fundamental pattern of growth is the localized activity of the primary vascular bundles, the cambia of which add cells to the ground tissue. Angulation in the Wagener is accentuated by this activity. With the exception of cells of the epidermis, final cell size is approximately equal in comparable regions of the two varieties. Differences in regional extent are due to differences in numbers of cells in that region.

Early modifications of the internodal anatomy of Glycine max sprayed with 2,4-DB

1979 ◽  
Vol 57 (12) ◽  
pp. 1340-1344 ◽  
Author(s):  
Thompson Demetrio Pizzolato ◽  
David L. Regehr
Keyword(s):  
Cell Division ◽  
Cell Enlargement ◽  
Secondary Phloem ◽  
Anatomical Changes ◽  
Phloem Parenchyma ◽  
Cortical Parenchyma ◽  
Parenchyma Cells ◽  
Radial Cell ◽  
Orderly Fashion ◽  
Stimulation Of

An aqueous spray of 4-(2,4-dichlorophenoxy)butyric acid (2,4-DB) induces anatomical changes in young Glycine internodes. Four days after spraying, the first symptoms appear outside the cambium when the interfascicular parenchyma cells and the adjacent cortical parenchyma cells enlarge and divide in several planes. Four days later, the metaphloem parenchyma cells in many of the leaf traces undergo considerable periclinal cell division and extensive radial cell enlargement. The phloem parenchyma cells of the late metaphloem and first secondary phloem enlarge and divide in a less orderly fashion. Fifteen days after treatment, the cortical parenchyma is modified into a band of radially seriate cells above the protophloem fibers. Products of this cambium-like region convert the cortex into a callus-like tissue. The size of starch grains is reduced initially in the phloem and xylem and later in the cortex. It appears that the stimuli produced by 2,4-DB move into the internode via the metaphloem of leaf traces. Despite the rapid obliteration of conducting phloem by the 2,4-DB induced stimulation of phloem parenchyma, an accelerated differentiation of secondary phloem compensates for this loss.

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