热带亚热带植物学报 2019, 27(2): 157 ~ 163
Journal of Tropical and Subtropical Botany
收稿日期: 2018-06-28 接受日期: 2018-09-03银行卡csc
基金项目: 中国科学院A 类战略性先导科技专项(XDA13020500); NSFC-广东联合基金项目(U1701246)资助
This work was supported by the Strategic Priority Rearch Program of Chine Academy of Sciences (Grant No. XDA13020500); and the United NSFC-Guangdong Fond (Grant No. U1701246).
作者简介: 黄静(1993~ ),女,硕士研究生,主要从事植被与景观生态学方面的研究。E-mail: hjing@scbg.ac
* 通信作者 Corresponding author. E-mail: jiansg@scbg.ac
海刀豆的抗逆生理生化特征分析
黄静1,2, 刘楠1, 任海1, 简曙光1*贩毒案
高中作文素材摘抄(1. 中国科学院华南植物园,广东省应用植物学重点实验室,广州 510650;2. 中国科学院大学, 北京100049)
中国英文怎么写的摘要:为了解西沙群岛上海刀豆(Canavalia maritima )的抗逆特性,对其叶片解剖结构、生理学特征和养分状况进行了分析。结果表明,海刀豆叶片的栅栏组织发达,气孔密度大;叶绿素a/b 低于3∶1;抗氧化酶活性普遍较高,以SOD 活性最大;脯氨酸含量高;在土壤养分含量较低的情况下,叶片中的营养元素含量仍然较高。因此,海刀豆具有耐干旱、强光、高温和贫瘠等抗逆生物学特性,可以作为热带珊瑚岛(礁)防风固沙和植被恢复物种。
种甘蔗>管辖权异议上诉关键词:海刀豆;叶片; 解剖结构;生理生态;抗逆性
doi: 10.11926/jtsb.3961
Physiology and Biochemical Characteristics of Canavalia maritime under Stress
HUANG Jing 1,2, LIU Nan 1, REN Hai 1, JIAN Shu-guang 1*
(1. Guangdong Provincial Key Laboratory of Applied Botany , South China Botanical Garden , Chine Academy of Sciences , Guangzhou 510650, China; 2. University of Chine Academy of Sciences , Beijing 100049, China)
Abstract: In order to understand the stress resistance characters of Canavalia maritima in Paracel Islands, the anatomical structure, physiological characteristics and nutrient status of leaves were studied. The results showed that palisade tissue of C. maritima leaves developed well with high density of stomata. The chlorophyll a/b was lower than 3∶1. The antioxidants enzyme activities were high, especially the activity of SOD was the highest, and content of proline was high. In addition, under low soil nutrient content, the nutrient content in leaves was high. Therefore, Canavalia maritima could be ud for vegetation restoration and reversing dertification, becau it had characters in resistance to drought, strong light, high temperature and infertile.
团结的英语
Key words: Canavalia maritime ; Leaf; Anatomical structure; Physiological ecology; Stress resistance
海刀豆(Canavalia maritima ),又名水流豆,是豆科(Leguminosae)刀豆属多年生草质藤本植物,主要分
布在热带海岸地区,在我国分布于东南部至南部海滨
沙地(较少见),在西沙群岛较常见。海刀豆茎被稀疏
的微柔毛,羽状复叶具3小叶,具托叶且小托叶小;
小叶倒卵形、卵形、椭圆形或近圆形,先端圆、截平、
微凹或具小凸头,稀渐尖,基部楔形至近圆形,侧生
小叶基部常偏斜,两面均被长柔毛。总状花序腋生,
红薯发芽蝶形花,花冠紫红色。荚果线状长圆形,顶端具喙尖, 具纵棱;种子椭圆形,花期6-7月(图1)。
藤本植物海刀豆是西沙群岛常见植物[1]。热带珊瑚岛(礁)具有盐碱、干旱、贫瘠等极端环境特征,普通植物极难生长定居,而具有较好抗逆生物学特性的植物可能在热带珊瑚岛(礁)植被恢复中发挥重要作用。关于海刀豆的研究多集中在刀豆类之间的外源凝聚素的晶体结构和作用分析[2–3],以用化学成分,如黄酮及其提取技术方面[4–5]。海刀豆富含能够治疗抑郁症的物质如黄酮等,具有一定的药用