La Trobe University

Agriculture Victoria Services Pty Limited

Grains Research and Development Corporation

Roger W Parish

Song Li

German Carlos Spangenberg

Joshua Heazlewood

Trudi Higginson

Carl McDonald Ramage

Sylvana Iacuone

Melissa Ann Palviainen

Roger Kalla

Yi Han Lin

Charles K Pallaghy

Carl Mc Donald Ramage

Carl Mcdonald Ramage

Song Feng Li

The present invention relates to methods of manipulating senescence in plants. The invention also relates to vectors useful in such methods, transformed plants with modified senescence characteristics and plant cells, seeds and other parts of such plants.

Manipulation of plant senescence using modified promoters

The present invention provides a method for disrupting pollen development in a plant, the method comprising inhibiting the expression of an endogenous nucleic acid molecule which is, under normal conditions, detectably expressed in anther tissue of a plant during pollen formation, and which codes for a protein belonging to the MYB class of DNA binding transcription factors. Particularly, the nucleic acid molecule whose expression is blocked encodes MYB 32 or MYB 103. The invention also provides nucleic acid molecules for use in the method, use of the method in producing male sterile plants and transgenic plants produced in accordance with the method.

Nucleic acid molecules and their use in plant sterility

The present invention provides an expression cassette comprising a functional anther specific promoter nucleic acid molecule, homologous to the Ta39 promoter of tobacco, as well as functional homologues, orthologues and fragments of said functional anther specific promoter nucleic acid molecule. Also contemplated, are recombinant plasmids, plant cells and cell lines, transgenic plants and propagating material comprising the functional anther specific promoter nucleic acid molecule.

Anther specific promoters and uses thereof

Manipulation of plant senescence

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Warrandyte, Australia

Roger W Parish