pulvinus和叶柄之间的差异

Thekey differencebetween pulvinus and petiole is thatPulvinus是叶子底部的小肿胀，促进叶子的运动，而叶柄是将叶片连接到的叶子茎干.

pulvinus和叶柄是植物中发现的两个重要结构。两种结构都与植物叶有关。Pulvinus是一个小肿胀，位于叶柄与叶子茎相连的点。因此，在叶柄的底部看到pulvinus。它有助于生长独立的叶子运动。叶柄是将叶子连接到茎的叶子茎。

内容

1.Overview and Key Difference
2.What is Pulvinus
3.What is Petiole
4.Similarities Between Pulvinus and Petiole
5.Side by Side Comparison – Pulvinus vs Petiole in Tabular Form
6.概括

什么是普尔文斯？

Pulvinus is the swelling at the base of a leaf. It is the organ facilitating the movement of the leaf. It is located at the point where the petiole joins the leaf to stem. Pulvini are localized and specialized areas in stems or leaves composed of a group of thin-walledparenchyma cells.

The leaf movements are facilitated by the pulvinus due to the changes inturgor pressureof motor cells. In the sensitive plants, likeMomosa Pudica, the pulvinus is responsible for the folding of leaves upon touch or injury. Moreover, in plants such asAlbizzia和Samanea,leaf movements are controlled by the different turgor pressure changes in pulvinal motor cells.

What is Petiole?

叶子的网站产生的碳水化合物the process of photosynthesis. The petiole is the stalk that connects a leaf to the stem. In other words, the petiole is the leaf stalk. Petiole holds the leaf blade. Petioles are mainly greenish in colour and also able to produce food via photosynthesis. Furthermore, petioles are the structures that are responsible for the leaf falls in deciduous plants during the fall season. The length of the petiole can vary in different plants. They can be long, short or completely absent. If petioles are absent or if leaves join the stem without petioles, we call those leaves sessile leaves.

Petioles provide the path to transport food, water, etc. When leaves produce food, they are transported to the other parts of the plant through the petiole. Furthermore, the ingredients necessary to carry out photosynthesis by leaves are supplied via the petioles. Moreover, petioles play an important role in directing leaves to the sunlight for capturing more sunlight for photosynthesis.

Pulvinus和Petiole之间有什么相似之处？

• Both pulvinus and petiole are two structures related to leaves.
• pulvinus存在于叶柄的底部。
• Some plants do not have pulvini and petioles.
• Both pulvinus and petiole are green in colour.

What is the Difference Between Pulvinus and Petiole?

Pulvinus是叶子的肿胀。相反，叶柄是叶子茎。因此，这是pulvinus和petiole之间的关键区别。此外，Pulvinus促进了叶片的生长独立运动，而叶柄则将叶子附着在茎上。

The following table summarizes the difference between pulvinus and petiole.

摘要 - Pulvinus vs Petiole

Pulvinus is the swollen leaf base while petiole is the leaf stalk. Both structures are related to leaves of plants. Pulvinus is mostly present at the base of petiole where the leaf joints to the stem. It facilitates growth independent movements of leaves. Petiole attaches the leaf to stem. It also aids the transportation of nutrients from the leaf to other parts and transport water and minerals to leaves. This is the summary of the difference between pulvinus and petiole.

Reference:

1. “Pulvinus”. En.Wikipedia.Org, 2020,Available here.

2.“ Petiole：定义和功能。”stuce.com，2020年，Available here.

Image Courtesy:

1. “Starr 070306-5195 Angiopteris evecta” By Forest & Kim Starr(CC BY 3.0)viaCommons Wikimedia

2. “Petiole (PSF)” By Pearson Scott Foresman – Archives of Pearson Scott Foresman, donated to the Wikimedia FoundationThis file has been extracted from another file: PSF P-680002.png (Public Domain) viaCommons Wikimedia