甘蔗斑茅的杂交利用及其杂种后代鉴定系列研究(三)——拔地拉与斑茅耐盐性差异分析(英文)  

Use and Characterisation of the Genuine Intergeneric Hybrids from the Cross Between Saccharum officinarum L. and Erianthus arundinaceum Retz (Ⅲ)——Salinity Tolerance in Saccharum officinarum and Erianthus arundinaceum

作　　者：郭莺[1] 余爱丽[1] 张木清[1] 

机构地区：[1]福建农林大学农业部甘蔗生理生态与遗传改良重点实验室,福州350002

出　　处：《热带作物学报》2005年第2期88-93,共6页Chinese Journal of Tropical Crops

基　　金：Supportedby NationalHi-TechR&D Program ofChina(863 Program No .2004AA241191 );NaturalScienceFoundationofChina(30170590).

摘　　要：以生长初期的斑茅和拔地拉(对照)为试验材料,分别用4 种NaCl 浓度(350,250,150,50 mmol/L )处理,测定在NaCl 胁迫与正常供水条件下植物的根系活力、叶片的叶绿素含量、丙二醛含量、过氧化物酶活性及同工酶谱、超氧化物歧化酶活性、盐胁迫蛋白的变化。结果表明,斑茅在遭受NaCl 胁迫时,通过叶片卷缩、减少叶面积来避免大量失水。在NaCl 胁迫处理条件下,斑茅的根系活力、叶绿素含量呈直线下降,与拔地拉的变化相似,但其下降幅度比拔地拉小;而丙二醛含量呈直线上升,但其上升幅度小于拔地拉;随胁迫处理时间的延长,斑茅和拔地拉的过氧化物酶活性、超氧化物歧化酶活性均出现先升后降趋势,但与拔地拉相比,斑茅的峰值出现较晚,且斑茅还产生了与拔地拉不同的盐胁迫蛋白。The water loss in Erianthus leaves was gradually decreased via wilting under the stress of sodium chloride at the concentrations of 350 mmol/L, 250 mmol/L, 150 mmol/L and 50 mmol/L. The results also showed that the content of MDA in the leaves of Erianthus was increased less than that in Badila, but the root activity and chlorophyll content in Erianthus were decreased more than those in Badila with the stress of sodium chloride being increased, while the activities of both SOD and POD in Erianthus were obviously higher than those in Badila, which indicated that the Erianthus could be more adaptive under the stress and could be used as the source of salinity resistant gene for cloning.

关 键 词：斑茅 拔地拉 NACL胁迫 

分 类 号：S566.101[农业科学—作物学]