Plant Structures Exam 3

How much light is coming down and how long the plant was exposed, Fluence Rate x Duration or Irradiation

Signal to receptor to signal transduction to response

The process of transferring pollen grains from the anther of the stamen (male organ of the flower) to the stigma of the pistil (female organ of the flower)

Divide and differentiate to form pollen grains

Flowers have multiple carpels that are not joined together

Small molecules or ions made quickly and mobilized fast

Molecule that attaches to and activates a receptor

A cellular response to an environmental stimulus or genetic mutation that is induced by other cells (stomata)

Compound developed by a plant to benefit is in some form

1. Gametogenesis begins with formation of the megaspore mother cell (megasporocyte)

Acts in immature climacteric fruit, ethylene inhibits its own biosynthesis (negative feedback)

Light absorbing pteridine derivatives often found in pigmented cells

Encompasses all events between the start of imbibition (moistening) of the dry seed and the emergence of the embryo (usually starts in the radicle)

One sperm cell fuses with an egg to create zygote, the other sperm fuses with the binucleate central cell (including the two polar nuclei), to produce a triploid primary endosperm cell (divides mitotically to form the nutrition endosperm of the seed)

Responses requiring a low amount of light, ex: seed germination, hypocotyl elongation, leaf movements

Insensitive to day length and flower under any photoperiodic conditions, typically under autonomous regulation

Flowering only occurs in long days (qualitative LDPs) or their flowering is accelerated by long days (quantitative LDPs)

Rhythmic pattern manifesting over 24 hours from the Latin circa "about" and diem "day"

Fruit splits to release its seeds

C-terminal domain