Connective (botany)

Connective in Botany

Schematic diagram of an anther showing the connective.

The connective is a crucial structure in the anther of a flower. It is the tissue that connects the two thecae of the anther, which are the pollen-producing structures. The connective plays a vital role in the development and function of the anther, ensuring that the pollen is properly supported and can be effectively released during pollination.

Structure

The connective is typically a thin strip of tissue that runs between the two thecae. It is composed of parenchyma cells and often contains vascular tissue that supplies nutrients and water to the developing pollen grains. The connective may also contain mechanical tissue that provides structural support to the anther.

Function

The primary function of the connective is to hold the thecae together and maintain the structural integrity of the anther. It also facilitates the transport of nutrients and water to the pollen sacs, ensuring the proper development of pollen grains. During the process of dehiscence, when the anther opens to release pollen, the connective helps in the controlled splitting of the anther.

Variations

In some plant species, the connective may be modified to perform additional functions. For example, in certain orchids, the connective may be extended to form a stipe, which aids in the attachment of pollen to pollinators. In other species, the connective may be reduced or absent, with the thecae being directly attached to each other.

Importance in Plant Reproduction

The connective is essential for the proper functioning of the anther and, consequently, for successful plant reproduction. By supporting the thecae and facilitating the release of pollen, the connective ensures that pollen can be effectively transferred to the stigma of a flower, leading to fertilization and the production of seeds.

Related Pages

• Anther
• Pollen
• Pollination
• Theca (botany)
• Stigma (botany)