Development and activity periodicity of cambium in <em>Camptotheca acuminata</em>

XI Meng-li; SHI Ji-sen; BAO Shao-kang

Volume 23 Issue 3

Feb. 2017

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XI Meng-li, SHI Ji-sen, BAO Shao-kang. Development and activity periodicity of cambium in Camptotheca acuminata[J]. Journal of Zhejiang A&F University, 2006, 23(3): 275-279.

Citation:

XI Meng-li, SHI Ji-sen, BAO Shao-kang. Development and activity periodicity of cambium in Camptotheca acuminata[J]. Journal of Zhejiang A&F University, 2006, 23(3): 275-279.

Development and activity periodicity of cambium in Camptotheca acuminata

1.
.The Key Laboratory of Forest Tree Genetics and Gene Engineering , Nanjing Forestry University , Nanjing 210037 , Jiangsu, China;
2.
.Department of Biology , Southwest Normal University , Chongqing 630715, China

Funds:

国家自然科学基金资助项目(30170745); 江苏省高校省级重点实验室开放项目(KJS03035)

Received Date: 2005-08-04
Rev Recd Date: 2005-11-22
Publish Date: 2006-06-20

Abstract

The cambium of Camptotheca acuminata is non-stratified .In the subsequent development of cambium, with the increasing stem age , the length of fusiform initials increases and the length of ray initials decreases .The cambial activity is similar to that in most trees of diffuse-porous wood and with an evident periodicity .InMarch , the cambial activity starts after bud sprouting , and it becomes the most vigorous in April and May .After October , it begins dormancy .Increasing and decreasing of stored starch are closely related to the periodicity of cambial activity . After cambial activity is resumed in March , starch decreases progressively until it disappears .In August , starch accumulates progressively and disappears quickly in September .The stored starch accumulates again in November until the next March , and starts to decrease after that .[ Ch , 1 fig .1 tab .12 ref .]
- botany,
- Camptotheca acuminata,
- cambium,
- development,
- periodicity of cambial activity

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Development and activity periodicity of cambium in Camptotheca acuminata

1. .The Key Laboratory of Forest Tree Genetics and Gene Engineering , Nanjing Forestry University , Nanjing 210037 , Jiangsu, China;

2. .Department of Biology , Southwest Normal University , Chongqing 630715, China

Funds:

国家自然科学基金资助项目(30170745); 江苏省高校省级重点实验室开放项目(KJS03035)

Received Date: 2005-08-04

Rev Recd Date: 2005-11-22

Publish Date: 2006-06-20

Key words:

Abstract: The cambium of Camptotheca acuminata is non-stratified .In the subsequent development of cambium, with the increasing stem age , the length of fusiform initials increases and the length of ray initials decreases .The cambial activity is similar to that in most trees of diffuse-porous wood and with an evident periodicity .InMarch , the cambial activity starts after bud sprouting , and it becomes the most vigorous in April and May .After October , it begins dormancy .Increasing and decreasing of stored starch are closely related to the periodicity of cambial activity . After cambial activity is resumed in March , starch decreases progressively until it disappears .In August , starch accumulates progressively and disappears quickly in September .The stored starch accumulates again in November until the next March , and starts to decrease after that .[ Ch , 1 fig .1 tab .12 ref .]

Development and activity periodicity of cambium in Camptotheca acuminata

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通讯作者: 陈斌, bchen63@163.com

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Development and activity periodicity of cambium in Camptotheca acuminata

1. .The Key Laboratory of Forest Tree Genetics and Gene Engineering , Nanjing Forestry University , Nanjing 210037 , Jiangsu, China;

2. .Department of Biology , Southwest Normal University , Chongqing 630715, China

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Development and activity periodicity of cambium in Camptotheca acuminata

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Development and activity periodicity of cambium in Camptotheca acuminata

1. .The Key Laboratory of Forest Tree Genetics and Gene Engineering , Nanjing Forestry University , Nanjing 210037 , Jiangsu, China; 2. .Department of Biology , Southwest Normal University , Chongqing 630715, China

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1. .The Key Laboratory of Forest Tree Genetics and Gene Engineering , Nanjing Forestry University , Nanjing 210037 , Jiangsu, China;

2. .Department of Biology , Southwest Normal University , Chongqing 630715, China