[1]贾晓玲,余徐润,王枫,等.水芹和旱芹营养器官结构和叶片光合特性的比较分析[J].南京农业大学学报,2014,37(2):21-25.[doi:10.7685/j.issn.1000-2030.2014.02.004]
 JIA Xiaoling,YU Xurun,WANG Feng,et al.Comparison and analysis of the nutritional organ structure and photosynthetic characters in cress and celery[J].Journal of Nanjing Agricultural University,2014,37(2):21-25.[doi:10.7685/j.issn.1000-2030.2014.02.004]
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水芹和旱芹营养器官结构和叶片光合特性的比较分析()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
37卷
期数:
2014年2期
页码:
21-25
栏目:
OA栏目
出版日期:
2014-03-20

文章信息/Info

Title:
Comparison and analysis of the nutritional organ structure and photosynthetic characters in cress and celery
作者:
贾晓玲1 余徐润2 王枫1 李岩1 蒋倩1 熊爱生1
1. 南京农业大学园艺学院/作物遗传与种质创新国家重点实验室/农业部华东地区园艺作物生物学与种质创制重点实验室, 江苏 南京 210095;
2. 扬州大学生物科学与技术学院, 江苏 扬州 225009
Author(s):
JIA Xiaoling1 YU Xurun2 WANG Feng1 LI Yan1 JIANG Qian1 XIONG Aisheng1
1. College of Horticulture/State Key Laboratory of Crop Genetics and Germplasm Enhancement/Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in East China, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China;
2. College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
关键词:
水芹旱芹营养器官结构光合特性
Keywords:
cresscelerynutritional organsstructurephotosynthetic characters
分类号:
S636.3
DOI:
10.7685/j.issn.1000-2030.2014.02.004
摘要:
以水芹品种‘南京八卦洲水芹’和旱芹品种‘六合黄心芹’为材料,采用盆栽的方法,对其营养器官结构和不同光照强度下叶片光合特性进行了比较研究。结果表明:水芹根系维管束比旱芹发达;水芹叶柄为中空结构,有较大的髓腔,而旱芹结构致密,无髓腔;旱芹叶片维管束和韧皮部细胞发达,木质部导管细胞数目较多,而水芹维管束相对不发达,木质部和韧皮部细胞较少。当光照强度为90 μmol·m-2·s-1时,旱芹的净光合效率(Pn)、气孔导度(Gs)、胞间CO2浓度(Ci)、蒸腾速率(Tr)分别是水芹的1.45、1.81、1.49和1.69倍;当光照强度为270 μmol·m-2·s-1时,旱芹的PnGsCiTr分别是水芹的1.77、1.61、1.71和1.46倍。在一定光照强度范围内,旱芹和水芹的PnGsTr呈正相关,与Ci呈负相关,并且旱芹的Pn要高于水芹。表明2种芹菜的光合特性与叶片的维管束、韧皮部、木质部导管相关。
Abstract:
Cress(‘Nanjingbaguazhoushuiqin’)and celery(‘Liuhehuangxinqin’)were selected to compare their structure of nutritional organ and photosynthetic characters under different light intensity.The results showed that root vascular bundles of cress were more sophisticated than those of celery.The structure of petiole in cress was hollow with big cavum medullare,while the structure was compact in celery without cavum medullare.There were more xylem cells,better developed phloem cells and vascular bundles in celery than in cress.The net photosynthetic rate(Pn),stomatal conductance(Gs),intercellular CO2 concentration(Ci)and transpiration rate(Tr)of celery were 1.45,1.81,1.49 and 1.69 times more than those of cress at 90 μmol·m-2·s-1 light intensity,and were 1.77,1.61,1.71 and 1.46 times more than those of cress at 270 μmol·m-2·s-1 light intensity,respectively.Under certain light intensity,Pn of cress and celery was positively correlated with Gs and Tr,and negatively correlated with Ci.Pn of celery was higher than that of cress.The results proved that photosynthetic characters of the cress and celery were related with vascular bundles,phloem and xylem of blade.

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备注/Memo

备注/Memo:
收稿日期:2013-4-19;改回日期:。
基金项目:国家自然科学基金项目(31272175);教育部新世纪优秀人才支持计划项目(NCET-11-0670);江苏高校优势学科建设项目(2011PAPD);江苏省双创计划项目(2011JSSC)
作者简介:贾晓玲,硕士研究生。
通讯作者:熊爱生,教授,研究方向为蔬菜分子生物学,E-mail:xiongaisheng@njau.edu.cn。
更新日期/Last Update: 1900-01-01