植物组织结构PPT
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1) Absorptive tissue 吸收组 织 Epidermis and root hairs in root hair region
10
2) Assimilating tissuຫໍສະໝຸດ Baidu 同化组 织
In green parts of plant
11
3) Storage tissue 储藏组 织
Simple tissue 简单组织
2
Plants consist of four basic kinds of Tissues systems:
Meristematic 分生组织
Mature tissues
Ground
基本组织（薄壁与机械
Dermal
保护组织
成 Vascular
输导组织 Conducting tissue
Show ramified pits
(分枝状纹孔）
1 = primary wall, 2 = secondary wall, 3 = ramified pit,
4 = cell lumen （细胞腔）
secondary meristem 次生分生组织
5
Secondary meristem 次生分生组织
Secondary meristem cells are derived from mature Parenchyma cells ( 薄壁组织细胞）.
6
7
2. Mature tissues 成熟组织 2.1. Parenchyma cells have thin primary walls
Petiole of celery (Apium sp.)
芹菜叶柄切片.
15
Electron microscopy reveals greater detail.
This is another view of the angular collenchyma from the petiole (叶柄）
of Rumex confertus
（酸摸）
16
Cross section and vertical section of Collenchyma 厚角细胞的横切与纵切面
17
2）Sclerenchyma 厚壁组织 （纤Br维ac）Bhyrascclheyrsceliderseiadrse （is石od细ia胞me）trica(n等d径f的ib）re.
熟
组 织
Secretory structure 分泌结构
3
1. Meristem 分生组 织
A specialized regions of active cell division called meristem, Including:
按位置分： Apical meristem
顶端分生组织 Lateral meristem
petals etc. which in
turn are made of tissues.
Concept: Tissues are
cell complexes which
are similar in origin
and structure, and are
1
Tissues may be simple (consisting of one cell type only) as parachyma (薄壁细胞）, collenchyma
ground parenchyma in which vascular bundles are embedded.
8
Parenchyma 薄壁组织
Shown here are potato tuber
(Solanum sp.)
parenchyma cells The cells show small intercellular spaces (细胞间隙） between them.
II.Structures, distribution and function in Tissues of Plants
第二节 植物组织结构、分布与功能
The plant body consists of integrated structures called organs, (器官）such as roots, stems, leaves,
1）Collenchyma cells elongated with nonLignified（非木质化）, unevenly thickened Primary walls.
Angular collenchyma has greatest wall thickenings where cells meet in corners.
（厚角组织）or sclerenchyma (厚壁细胞）, or complex (consisting of two or more cell types) as in the case of epidermis （表皮）, xylem（木质部
and phloem（韧皮部）.
Complex tissues 复合组织
薄壁组织 Ground tissues （基本组织） are typically
parenchyma. Many parenchyma cells are Isodiametric (等径的）.
A transverse section
（横切面）of corn (Zea mays) internode showing
12
4) Ventilaiting tissue 通气 组织
In hydrophytes (水生植物） and wetland plants（湿生植物）.
13
5) Transfer cells 传递细 胞
14
2.2. Mechanical tissues 机械组织
There are two types: Collenchyma and sclerenchyma 厚角组织
侧生分生组织 Intercalary meristem
居间分生组织
4
Apical meristems
According their origin and characters 按来源与性质 分, including:
promeristem 原分生组织 primary meristem 初生分生组织
1) Absorptive tissue 吸收组 织 Epidermis and root hairs in root hair region
10
2) Assimilating tissuຫໍສະໝຸດ Baidu 同化组 织
In green parts of plant
11
3) Storage tissue 储藏组 织
Simple tissue 简单组织
2
Plants consist of four basic kinds of Tissues systems:
Meristematic 分生组织
Mature tissues
Ground
基本组织（薄壁与机械
Dermal
保护组织
成 Vascular
输导组织 Conducting tissue
Show ramified pits
(分枝状纹孔）
1 = primary wall, 2 = secondary wall, 3 = ramified pit,
4 = cell lumen （细胞腔）
secondary meristem 次生分生组织
5
Secondary meristem 次生分生组织
Secondary meristem cells are derived from mature Parenchyma cells ( 薄壁组织细胞）.
6
7
2. Mature tissues 成熟组织 2.1. Parenchyma cells have thin primary walls
Petiole of celery (Apium sp.)
芹菜叶柄切片.
15
Electron microscopy reveals greater detail.
This is another view of the angular collenchyma from the petiole (叶柄）
of Rumex confertus
（酸摸）
16
Cross section and vertical section of Collenchyma 厚角细胞的横切与纵切面
17
2）Sclerenchyma 厚壁组织 （纤Br维ac）Bhyrascclheyrsceliderseiadrse （is石od细ia胞me）trica(n等d径f的ib）re.
熟
组 织
Secretory structure 分泌结构
3
1. Meristem 分生组 织
A specialized regions of active cell division called meristem, Including:
按位置分： Apical meristem
顶端分生组织 Lateral meristem
petals etc. which in
turn are made of tissues.
Concept: Tissues are
cell complexes which
are similar in origin
and structure, and are
1
Tissues may be simple (consisting of one cell type only) as parachyma (薄壁细胞）, collenchyma
ground parenchyma in which vascular bundles are embedded.
8
Parenchyma 薄壁组织
Shown here are potato tuber
(Solanum sp.)
parenchyma cells The cells show small intercellular spaces (细胞间隙） between them.
II.Structures, distribution and function in Tissues of Plants
第二节 植物组织结构、分布与功能
The plant body consists of integrated structures called organs, (器官）such as roots, stems, leaves,
1）Collenchyma cells elongated with nonLignified（非木质化）, unevenly thickened Primary walls.
Angular collenchyma has greatest wall thickenings where cells meet in corners.
（厚角组织）or sclerenchyma (厚壁细胞）, or complex (consisting of two or more cell types) as in the case of epidermis （表皮）, xylem（木质部
and phloem（韧皮部）.
Complex tissues 复合组织
薄壁组织 Ground tissues （基本组织） are typically
parenchyma. Many parenchyma cells are Isodiametric (等径的）.
A transverse section
（横切面）of corn (Zea mays) internode showing
12
4) Ventilaiting tissue 通气 组织
In hydrophytes (水生植物） and wetland plants（湿生植物）.
13
5) Transfer cells 传递细 胞
14
2.2. Mechanical tissues 机械组织
There are two types: Collenchyma and sclerenchyma 厚角组织
侧生分生组织 Intercalary meristem
居间分生组织
4
Apical meristems
According their origin and characters 按来源与性质 分, including:
promeristem 原分生组织 primary meristem 初生分生组织