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Published byGregory Sutton
Modified over 4 years ago
Background Introduction By Bensen Fan Kristin Gill Maria Garcia
Part I. Seed Development By Bensen Fan
Seed Anatomy Cotyledon Axis
Flower Anatomy Pistil Anthers (Makes Pollens) Ovary (Contains ovules) Stigma
Pollination & Fertilization: Forming of a New Life! Sperms Pollen Tube
Embryo Development: Zygote - Young Embryo Asymmetric Division Apical Cell Basal Cell Embryo Proper Suspensor Terminally Differentiated
Late Development: Torpedo - Mature Embryo SM = Shoot Meristem; RM = Root Meristem
Final Stage: Dormancy Mature Seeds Dormant Seeds
Germination: Beginning of a New Cycle…
Part II. Arabidopsis thaliana Embryo Development By Kristin Grill
What is the life cycle of an Arabidopsis plant?
What happens during embryo development? Each stage is essential for embryo development! EMBRYO SACGLOBULARHEARTTORPED O MATURATION
Embryos develop after double fertilization Early embryos consist of 2 regions: 1. Embryo Proper 2. Suspensor Globular Embryo Embryo Proper Suspensor
Early embryo development is a very coordinated developmental process Embryo Sac Egg Cell Central Cell Synergids 2-Cell Embryo Apical cell Basal cell Globular Embryo Embryo Proper Suspensor
The parts of a globular embryo undergo different fates Globular Embryo Embryo Proper Suspensor Mature Embryo Differentiated Organ Mature Arabidopsis Plant
Late embryo development… consists of cotyledon and axis development! 2 cotyledons Heart Stage Torpedo Stage
Mature Embryo Consists of: 1.Cotyledons 2.Axis - contains the shoot and root meristems
Part III: Why is Arabidopsis Thaliana a model plant? By Maria Garcia
Here’s Why Arabidopsis Thaliana is convenient. It has a: Fast generation time Small genome Large mutant collections Large scientific community working on all aspects of plant biology
How fast does it grow? Short non-seasonal generation time Grows all year 4 to 8 weeks from a seed to a mature plant
How small is it? Arabidopsis has a small genome 120Mb (25,000 genes- same as humans!) Arabidopsis genome was sequenced in the year 2000
Easy to Manipulate Large mutant collections Chemical Insertional Knock-Out! Easily manipulated Genetically tractable
Everyone is in on it Large scientific community working on all aspects of plant biology Many resources on this plant already Much is already known about this plant
REPRODUCTION in Flowering Plants.
Plant Reproduction. Zygote (2n) M I T O S S I M E I O S S I Seed (disperses via wind or animals) Developing sporophyte Mature sporophyte flower (2n)
Seed Development in Arabidopsis thaliana Chris McQuilkin and Eden Maloney.
Cell expansion plays a major role in growth Root cells expand their volume 50 times by expanding lengthwise but not widthwise.
REPRODUCTION AND STRUCTURE NOTES
PLANT REPRODUCTION SCIENCE : SCI MATHAYOM 1.
making more of a species
Angiosperm Reproduction and Biotechnology Chapter 38 p
Seed Formation in Gymnosperms & Angiosperms
Plant Sexual Reproduction & Development
Figure 38.2 Review of an idealized flower Pistil.
Unit 7 Chapter 24 Reproduction in Plants
10.1 Sexual Reproduction in Flowering Plants. Review from 29.4! Sepals: surround unopened flower bud; whorl around petals when open Petals: size, shape,
A Day in the Life of a Flower. Flower Function Primary Function: -To attract animals to pollinate the plant and reproduce. This is necessary in order.
Plant Growth & Development 3 stages 1.Embryogenesis Fertilization to seed.
Plant life cycle.
Plant Reproduction Asexual and Sexual (yes, sexual!)
Chapter 38 Angiosperm Reproduction.
Copyright © 2009 Pearson Education, Inc. REPRODUCTION OF FLOWERING PLANTS.
Sexual Reproduction in Plants Continued…. Pollination in Angiosperms Before seeds can develop inside a flower, pollen grain from the anthers must reach.
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