[1]张晓龙,陶烨,朱晓芳,等.不同铝耐性小麦内源磷再利用差异分析[J].江苏农业科学,2021,49(17):80-87.
 Zhang Xiaolong,et al.Study on difference of phosphorus reutilization in wheat with different aluminum tolerance[J].Jiangsu Agricultural Sciences,2021,49(17):80-87.
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不同铝耐性小麦内源磷再利用差异分析()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第49卷
期数:
2021年第17期
页码:
80-87
栏目:
遗传育种与耕作栽培
出版日期:
2021-09-05

文章信息/Info

Title:
Study on difference of phosphorus reutilization in wheat with different aluminum tolerance
作者:
张晓龙12陶烨12朱晓芳12马建锋3沈仁芳12
1.土壤与农业可持续发展国家重点实验室/中国科学院南京土壤研究所,江苏南京 210008;2.中国科学院大学,北京 100049; 3.冈山大学植物科学与资源研究所,日本冈山 710-0046
Author(s):
Zhang Xiaolonget al
关键词:
小麦耐铝性缺磷细胞壁磷再利用
Keywords:
-
分类号:
Q945.12;S512.101
DOI:
-
文献标志码:
A
摘要:
植物体内磷的分配和再利用是植物对磷元素利用的具体表现,磷和铝是酸性土壤上限制作物生长的两大主要因子,因此,对不同铝耐性品种在磷再利用机制方面的研究具有重要意义。以小麦耐铝品种Atlas 66和铝敏感品种Scout 66为研究材料,研究有无磷供应下品种间磷含量与细胞壁及其组分磷含量以及果胶甲酯酶(PME)活性的差异。结果表明,与Scout 66相比,Atlas 66在缺磷条件下鲜质量和干质量相对较低,全磷和可溶性磷含量也相对较低,但品种间差异不显著。另一方面,在缺磷条件下,小麦耐铝品种Atlas 66磷相关基因表达量大多显著大于铝敏感品种Scout 66,说明在缺磷条件下,Atlas 66对磷的需求明显要高于Scout 66,以此来满足自身的生长发育需求。缺磷条件下,Atlas 66的根部细胞壁磷含量以及地上部果胶磷含量大多显著高于Scout 66,无论有无磷供应下Atlas 66 与Scout 66的PME活性并没有显著差异,说明相比于Scout 66,Atlas 66在缺磷时细胞壁释放的可供植物再利用的磷显著减少,因而,Atlas 66对磷的需求提高,进一步验证了表达量的结果。综上所述,耐铝型小麦品种Atlas 66在整体磷含量上略低于铝敏感型品种Scout 66,更多的磷固定在Atlas 66细胞壁中不能释放,这可能也是其耐铝机制之一。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-02-04
基金项目:江苏省杰出青年基金(编号:BK20190050);中国科学院青年创新促进会(编号:2015250);国家重点基础研究发展计划(973)项目(编号:2014CB441000);中国科学院战略性先导科技专项(编号:XDB15030302、XDB15030202)。
作者简介:张晓龙(1990—),男,安徽阜阳人,博士研究生,主要从事植物逆境生理的研究。E-mail:974588379@qq.com。
通信作者:朱晓芳,博士,副研究员,主
更新日期/Last Update: 2021-09-05