干旱区生态环境知识资源中心(Arid): A multiple epidermis or a periderm in Parkinsonia praecox (Fabaceae)

Arid

DOI	10.3906/bot-1810-45
	A multiple epidermis or a periderm in Parkinsonia praecox (Fabaceae)
	Aguilar-Rodriguez, Silvia 1; Terrazas, Teresa 2; Camacho-Coronel, Xicotencatl 1
通讯作者	Terrazas, Teresa
来源期刊	TURKISH JOURNAL OF BOTANY
ISSN	1300-008X
EISSN	1303-6106
出版年	2019
卷号	43 期号:4 页码:529-537
英文摘要	A multiple epidermis in the green stems of Parkinsonia species has been described; however, there are disagreements among authors with regard to origin and tissues involved. The aims of this study were to identify the origin and development of the epidermis and cortex of P. praecox and relate these to possible adaptations to arid environments. Samples from new branches, to the stem, were removed and prepared using two embedding techniques. Our results show that the epidermis is simple, but periclinal divisions start far from the apical meristem. The inner derivatives maintained periclinal and anticlinal divisions, which are interpreted as meristematic, promoting continuous cell renewal. Wax and cutin deposits suggest that a special epidermis is present; however, it does not correspond to a multiple one. The cortex has four distinct regions. As the branch circumference increases, modifications occur in the first, second, and fourth regions, and sclerenchyma with abundant prismatic crystals develops. The third region maintains its identity with abundant chloroplasts. The occurrence of crystals and chlorenchyma improves structural stiffness, increases the reflectivity of plant surfaces, and facilitates the recycling of respiratory CO2. Abundant waxes, chlorenchyma, sclerenchyma, and crystals in the stems may be adaptations of P. praecox to xeric environments.
英文关键词	Abundant waxes chlorenchyma Fabaceae ontogeny prismatic crystals periclinal divisions
类型	Article
语种	英语
国家	Mexico
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000474619300009
WOS关键词	CALCIUM-OXALATE CRYSTALS ; STEM PHOTOSYNTHESIS ; ANATOMY ; LEAVES ; TISSUE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	Universidad Nacional Autónoma de México
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219138
作者单位	1.Univ Nacl Autonoma Mexico, Morphol & Funct Unit, Bot Lab, FES Iztacala, Mexico City, DF, Mexico; 2.Univ Nacl Autonoma Mexico, Inst Biol, Mexico City, DF, Mexico
推荐引用方式 GB/T 7714	Aguilar-Rodriguez, Silvia,Terrazas, Teresa,Camacho-Coronel, Xicotencatl. A multiple epidermis or a periderm in Parkinsonia praecox (Fabaceae)[J]. Universidad Nacional Autónoma de México,2019,43(4):529-537.
APA	Aguilar-Rodriguez, Silvia,Terrazas, Teresa,&Camacho-Coronel, Xicotencatl.(2019).A multiple epidermis or a periderm in Parkinsonia praecox (Fabaceae).TURKISH JOURNAL OF BOTANY,43(4),529-537.
MLA	Aguilar-Rodriguez, Silvia,et al."A multiple epidermis or a periderm in Parkinsonia praecox (Fabaceae)".TURKISH JOURNAL OF BOTANY 43.4(2019):529-537.