S.D. O'Neill and J. A. Nadeau

Hort. Reviews: Vol. 19 (1996)

TABLE OF CONTENTS

I. Introduction

1

II. Pollination-induced Perianth Senescence

2

A. Ethylene Coordination of Pollination-induced Flower Senescence

3

B. Signaling Processes and Pollination-induced Senescence

5

1. Primary Pollination Signals

6

2. Secondary Pollination Signals

9

C. Regulation of Ethylene Biosynthesis in Pollinated Flowers

13

1. Regulation of ACC Synthase Gene Expression in Pollinated and Senescing Flowers

13

2. Regulation of ACC Oxidase Gene Expression in Pollinated and Senescing Flowers

15

D. Regulation of Gene Expression in Senescing Flowers

17

E. Model for Pollination-regulated Flower Senescence

17

III. Pollination Regulation of Floral Pigmentation Changes

19

IV. Pollination Regulation of Ovary Development

20

V. Pollination Regulation of Male and Female Reproductive Development

21

A. Female Reproductive Development in Orchids

22

1. Range of Developmental States Prior to Pollination

22

2. Significance of Delayed Female Development

23

3. Ultrastructural, Biochemical and Genetic Studies

24

4. Orchids as Model System to Study Ovule Development

27

B. Other Examples of Postpollination Female Reproductive Development

30

C. Male Reproductive Development

32

VI. Coordinate Regulation of Postpollination Gametophyte Development

33

VII. Conclusion

34

Literature Cited

36