Which tissues are responsible for secondary growth in plants?

Which tissues are responsible for secondary growth in plants?

The process of secondary growth is controlled by the lateral meristems, and is similar in both stems and roots. Lateral meristems include the vascular cambium and, in woody plants, the cork cambium (cambium is another term for meristem).

Is xylem tissue found in secondary growth?

Primary and secondary xylem Primary xylem is formed during primary growth from procambium. Metaxylem develops after the protoxylem but before secondary xylem. Metaxylem has wider vessels and tracheids than protoxylem. Secondary xylem is formed during secondary growth from vascular cambium.

Does leaf undergo secondary growth?

Secondary growth, or “wood”, is noticeable in woody plants; it occurs in some dicots, but occurs very rarely in monocots. Other plant parts, such as leaves and flowers, exhibit determinate growth, which ceases when a plant part reaches a particular size.

Is secondary growth found in Pteridophytes?

Note- Secondary growth is absent in pteridophytes but exceptionally present in isoetes. Most vascular plants.

Do dicots have secondary growth?

Secondary growth occurs when dicot stems and roots grow wider. Frequently, this involves the development of a woody stem, which arises from a combination of the activities of the stem’s vascular cambium and cork meristem tissues.

Is there secondary growth in monocot stem?

Secondary growth occurs when dicot stems and roots grow wider. In general, monocots do not undergo secondary growth. If they do increase in girth (like palm trees and yucca plants), it does not result in the development of a secondary xylem and phloem, since monocots don’t have vascular cambium.

Is secondary growth found in gymnosperms?

Secondary growth occurs in most seed plants, but monocots usually lack secondary growth. If they do have secondary growth, it differs from the typical pattern of other seed plants. The formation of secondary vascular tissues from the cambium is a characteristic feature of dicotyledons and gymnosperms.

Do gymnosperms have secondary growth?

Secondary growth occurs in both the stems and roots of gymnosperms. This secondary growth is similar to that occurs in the roots and stems of dicots.

Does leaf under secondary growth?

What is secondary growth in dicot plant?

In dicot stems, secondary growth takes place by the formation of two types of cambia, namely, vascular cambium and cork cambium. Vascular cambium is formed by the joining of intra and interfascicular cambia. The cells divide periclinally and produce secondary vascular tissues and ray parenchyma.

Is secondary growth found in pteridophytes?

Which monocot plant has secondary growth?

Secondary thickening with this meristem occurs in a number of monocotyledonous species such as, Xanthorrhoea, Dracaena, (Figs. 21.1 & 31.23) Cordyline, Aloe, Yucca, Kingia, Dioscorea etc.

Which tissue is responsible for the secondary growth of plants?

The lateral meristem tissues are responsible for the secondary growth of plants. The secondary growth of plants increase in stem thickness and it is due to the activity of the lateral meristems, which are absent in herbs or herbaceous plants.

Which meristem is involved in secondary growth?

The process of secondary growth is controlled by the lateral meristems, and is similar in both stems and roots. Lateral meristems include the vascular cambium and, in woody plants, the cork cambium (cambium is another term for meristem).

Why does stem thickness increase in secondary growth of plants?

The secondary growth of plants increase in stem thickness and it is due to the activity of the lateral meristems, which are absent in herbs or herbaceous plants. There are two types of lateral tissues involved in secondary growth, namely, vascular cambium and cork cambium. Explore more Growth and Development.

What is the relationship between primary and secondary growth in trees?

In woody plants, primary growth is followed by secondary growth, which allows the plant stem to increase in thickness or girth. Secondary vascular tissue is added as the plant grows, as well as a cork layer. The bark of a tree extends from the vascular cambium to the epidermis. Image credit: OpenStax Biology