Fruit Morphology Flashcards
Concept of the Carpel
Origin of Ovary
-According to foliar theory
-ovary derived from leaf like structure that ovules were born
-throughout evolution leaf like structure produced a folded ovary
Fruit
mature or ripened ovary of a flower along w its contents and accessory structures
3 layers of the pericarp
exocarp-outer layer
mesocarp- middle layert
endocarp- inner later
what is the pericarp
the fruit wall or the ovary wall
fleshy fruits
have a fleshy paricarp
Pepper
-fleshy fruit
-slightly expanded mesocarp
-fleshy rind with a central core composed of placental tissues where seeds are borne
Tomato
-fleshy fruit
-fleshy mesocarp
-elaboration of seed bearing placental tissues that produce jelly
-thought to be poisonous in 1800s
Peach
-Fleshy fruit
-fleshy mesocarp makes up edible bit
-pit is the endocarp
Orange
-Fleshy fruit
-edible part is hairs on the inside of endocarp
-citrus
Fruit type of Citrus
Hesperidium
skin of citrus fruit
is the exocarp and mesocarp
-covered with pockets filled with aromatic oils
endocarp of citrus
-highly modified fleshy hairs
-fleshy hairs fill cavity of ovary
-hairs filled with watery solution and sugars and acids
What methods do people use to “ripen” orange
-Cool temperatures stimulate carotene(orange pigment)
-use of ethylene to change colour from green to orange
Bloods(orange)
anthocyanin
Normals(orange)
richly flavored juice
juice is filtered, pulp and peel controlled, freeze dried
Navels
-Eating orange
-formed by a small abnormal ovary the “Navel”
-pollen non functional
-rarely produce seeds
-propagated asexually
Raspberry
Aggregated Fruit, consisting of many drupletes on a receptacle
Nectarines
Peach w no fuzz
Freestone(peach)
have pits(endocarp), separates easily from mesocarp(flesh)
Cling(peaches)
mesocarp sticks to pits tight
Dry Fruits
peroicarp dry @ maturity
Indehiscent
Nonsplitting-seeds & ovaries tgthr(sunflower grains)
Deshiscent
Splitting(peas)
Strawberry
-Dry fruit
-red part recepticle
Wheat
-indehiscent fruit called a caryopsis
-seed coat fused to ovary wall
Peas
-dry Indehiscent fruit
fruit split along 2 opposite margins of pod
Superior Ovary
-Ovary Born above sepals and Petals
tomatos, peach, cherry
Inferior Ovary
-Ovary Posistioned below attachment of sepals and petals
-fleshy parts can result from enlargement of pericarp and accessory tissues
pome fruites–> apple, pears, saskatoons
Apple
Inferior ovary
Multi Carpel