种子物理休眠研究进展

doi:10.11983/CBB15161

植物学报 ›› 2016, Vol. 51 ›› Issue (6): 863-871.DOI: 10.11983/CBB15161

种子物理休眠研究进展

薛婷婷¹, 沈永宝^1,^2,,A;^*(), 刘嘉¹, 史锋厚^1,²

¹南京林业大学林学院, 南京 210037
²南京林业大学南方现代林业协同创新中心, 国家林业局南方林木种子检验中心, 南京 210037

收稿日期:2015-09-11 接受日期:2016-05-09 出版日期:2016-11-01 发布日期:2016-12-02
通讯作者: 沈永宝
作者简介:
# 共同第一作者
基金资助:
林业公益性行业科研专项(No.201204315)和江苏高校优势学科建设工程(PAPD)

Advances in Research of Seed Physical Dormancy

Tingting Xue¹, Yongbao Shen^1,2*, Jia Liu¹, Fenghou Shi^1,2

¹College of Forestry, Nanjing Forestry University, Nanjing 210037, China
²Co-innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Southern Tree Seed Inspection Center National Forestry Administration, Nanjing 210037, China

Received:2015-09-11 Accepted:2016-05-09 Online:2016-11-01 Published:2016-12-02
Contact: Shen Yongbao
About author:
# Co-first authors

摘要/Abstract

摘要： 种子物理休眠是由种皮不透水层引起的一种休眠类型, 是植物在长期系统发育进程中获得的一种适应环境变化的特性。该文简述了种子物理休眠的定义与概念; 从不透水层、种皮的特殊水孔器结构以及胚的形态特异性等方面, 综述了物理休眠种子的形态特征、物理休眠与综合休眠的解除方法以及物理休眠的可能解除机制; 利用Angiosperm Phylogeny Group III (APG III)系统分析了种子物理休眠的植物在系统发育中的位置; 最后提出了今后种子物理休眠有待研究的主要问题。

Abstract: Seed physical dormancy is a special type of dormancy caused by an impermeable seed coat or pericarp. It is an adaptation to environmental changes that plants acquire during long-term phylogenesis. This article introduces the concept and definition of physical dormancy and summarizes the morphological structure of physically dormant seed, which includes a water-impermeable layer of seed coat, water-gap complex and the embryo. It also summarizes the release of seed physically dormant and the mechanisms involved in the formation of openings in the seed coat. It describes the phylogenetic relationships of physically dormant seed. It also put forword the probable research point on seed physically dormant in the future.

薛婷婷, 沈永宝, 刘嘉, 史锋厚. 种子物理休眠研究进展. 植物学报, 2016, 51(6): 863-871.

Tingting Xue, Yongbao Shen, Jia Liu, Fenghou Shi. Advances in Research of Seed Physical Dormancy. Chinese Bulletin of Botany, 2016, 51(6): 863-871.

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链接本文: https://www.chinbullbotany.com/CN/10.11983/CBB15161

https://www.chinbullbotany.com/CN/Y2016/V51/I6/863

图/表 3

图1 白花草木樨种皮结构示意图(Hamley, 1932)

Figure 1 Testa structure of Melilotus albus seeds (Hamley, 1932)

图2 红木种子塞状水孔器结构(Nandi, 1998)(A) 箭头所指处为塞状水孔器所在的部位; (B) 塞状水孔器电镜扫描图; (C) 塞状水孔器剖面示意图

Figure 2 The structure of plug-like water-gap complex of Bixa orellana seeds (Nandi, 1998)(A) The arrow points to the place of the plug-like water-gap complex; (B) The scanning electron micrographs of the plug-like water-gap complex; (C) The section sketch map of the plug-like water-gap complex

图3 被子植物种子类型与种子休眠类型的总体进化趋势(Finch-Savage and Leubner-Metzger, 2006)MD: 形态休眠; MPD: 形态生理休眠; ND: 非休眠; PD: 生理休眠; PY: 物理休眠; B1-B4: 基部胚4种类型; P: 周部胚; LA: 线型胚; MA: 微型胚; FA1-FA4: 叶状胚4种类型。白色部分为胚乳, 黑色部分为胚。

Figure 3 Summary of general trends in angiosperm seed evolution with respect to seed type and dormancy class (Finch- Savage and Leubner-Metzger, 2006)MD: Morphological dormancy; MPD: Morphological and physiological dormancy; ND: Non dormancy; PD: Physiological dormancy; PY: Physical dormancy; B1-B4: 4 subtypes of basal seed type; P: Pheripheral seed type; LA: Linear axile seed type; MA: Miniature axile seed type; FA1-FA4: 4 subtypes of foliate axile seed type. The white part is the endosperm, and the black part is the embryo.

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种子物理休眠研究进展

Advances in Research of Seed Physical Dormancy

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