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| 一氧化氮对百合鳞茎的休眠解除效应 |
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王齐,师春娟,王琳,张小平,孙亮,王有国
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云南林业职业技术学院,云南省林业科学院,云南林业职业技术学院,云南农业大学园林园艺学院,云南农业大学园林园艺学院,云南农业大学园林园艺学院
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| 摘要: |
| 为研究一氧化氮（NO）在打破百合鳞茎休眠中的作用，用硝普钠（SNP）处理休眠的“哥德琳娜”
百合（Lilium brownii var. viridulum ‘Gondelina’）鳞茎后，在25 ℃下进行培养，观测其萌发生长和测定不同
解除休眠生长时期GA（赤霉素）、IAA（吲哚乙酸）、ZR（玉米素核苷）、ABA（脱落酸）4 种内源激
素的质量摩尔浓度变化。结果表明，NO 能够促进“哥德琳娜”百合鳞茎休眠的解除，随处理体积摩尔浓
度的增加，鳞茎发芽率呈先增大后减小趋势，其中10 mmol/L SNP 体积摩尔浓度浸泡处理对休眠“哥德琳娜”
百合鳞茎的解除效果最好，发芽率达58.2%，比对照增大37.9 个百分点，且与对照差异显著（P ＜ 0.05）；
鳞茎质量和根生长量呈先增大后减小趋势，10 mmol/L SNP 体积摩尔浓度浸泡处理下增加最大，分别比对
照增大41.74% 和102.03%，且与对照差异显著（P ＜ 0.05）；用10 mmol/L SNP 体积摩尔浓度浸泡处理下，
鳞茎内源激素GA、IAA 和ZR 质量摩尔浓度随处理天数增加呈增大趋势，且均与对照差异显著（P ＜ 0.05），
而ABA 质量摩尔浓度随处理天数增加呈减小趋势，与对照之间差异不显著。NO 能够促进生长素的快速生
成，加速“哥德琳娜”百合鳞茎休眠解除的进程。 |
| 关键词: 一氧化氮（NO） 百合鳞茎 休眠 内源激素 |
| DOI： |
| 分类号: |
| 基金项目:云南林职院博士(项目编号：KY(BS)201401) |
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| The Effect of Nitric Oxide on Dormancy Release in Bulbs of Lilium brownii var. viridulum |
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WANG Qi,SHI Chunjuan,WANG Lin,ZHANG Xiaoping,SUN Liang and WANG Youguo
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Yunnan Forestry Technological College;China;Yunnan Academy of Forest;China;College of horticulture and landscape Yunnan Agricultural University,Yunnan Kunming;China;,Yunnan Academy of Forest,Yunnan Forestry Technological College,College of horticulture and landscape Yunnan Agricultural University,Yunnan Kunming,College of horticulture and landscape Yunnan Agricultural University,Yunnan Kunming,College of horticulture and landscape Yunnan Agricultural University,Yunnan Kunming
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| Abstract: |
| In order to study the effect of nitric oxide on bulb dormancy release of Lilium brownii var.
viridulum‘Gondelina’, bulbs of L. brownii var. viridulum ‘Gondelina’were treated by sodium nitroprusside(SNP)
and cultivated under 25 ℃ conditions. We observed the germination growth condition of the bulbs and the content
changes of 4 kinds of endogenous hormones in different release dormancy and growth periods, including
gibberellin(GA), indoleacetic acid(IAA), zeatin nucleoside (ZR) and abscisic acid (ABA). The results showed that
nitric oxide could accelerate the dormancy release of L. brownii var. viridulum ‘Gondelina’ bulbs. With theSNP concentration increasing, the germination rate increased first then decreased. In this research, the optimum
SNP concentration was 10 mmol/L and the germination was 58.2%, which was comparatively increased 37.9%
with CK and has significant difference with CK (P<0.05). The weight and root increment showed first increased
and then reduced trend, which were increased 41.74% and 102.03% respectively than CK. The content endogenous
hormones, including GA, IAA and ZR, were increased gradually with the treated days, and they have significant
difference with CK (P<0.05)，while the content endogenous ABA were decreased gradually with the treated
days. There was no significant difference between two groups, which showed that nitric oxide could promote the
syntheses of auxin, and the dormancy completion of bulbs of L. brownii var. viridulum ‘Gondelina’ accelerated. |
| Key words: nitric oxide bulbs of Lilium brownii var. viridulum dormancy endogenous hormones |
