查詢結果分析
相關文獻
- Does Polyamine Seed Pretreatment Modulate Growth and Levels of Some Plant Growth Regulators in Hexaploid Wheat (Triticum Aestivum L.) Plants under Salt Stress?
- Effect of Salinity on Egg Development of Black Porgy Acanthopagrus Schlegeli
- Physical and Bio-Optical In-Situ Measurement Study on the Sewage Ocean Outfall Plume
- 以鹽度與溫度控制Chlorella Minutissima淡水與海水株綠球藻之長鏈不飽和脂肪酸產量及成份
- 2,3,5-Triphenyltetrazolium Reduction in the Viability Assay of Ulva fasciata (Chlorophyta) in Response to Salinity Stress
- Fluid Inclusions of the Lead-Zinc Quartz Veins, Chinmienshan, Toucheng
- Reduced Toxicity of Cu and Zn to Mangrove Seedlings (Kandelia Candel (L.) Druce.) in Saline Environments
- Salt Tolerance in Seedlings of the Mangrove Kandelia Candel (L.) Druce, Rhizophoraceae
- The Distribution of Gracilaria tenuistipitata var. liue at the Estuary of Tansui River and its Casual Relation to Salinity Tolerance and Character of Substratum
- 低海拔闊葉樹種淹鹽水後之症狀及形態適應
頁籤選單縮合
題名 | Does Polyamine Seed Pretreatment Modulate Growth and Levels of Some Plant Growth Regulators in Hexaploid Wheat (Triticum Aestivum L.) Plants under Salt Stress?=以多元胺預先處理種子能否調節發芽後處於鹽逆境六倍體小麥之生長及若干植物生長調節物質之含量高低? |
---|---|
作者 | Iqbal, Muhammad; Ashraf, Muhammad; Shafiq-Ur-Rehman; Rha, Eui Shik; |
期刊 | Botanical Studies |
出版日期 | 20060700 |
卷期 | 47:3 民95.07 |
頁次 | 頁239-250 |
分類號 | 434.127 |
語文 | eng |
關鍵詞 | 植物生長調節物質預處理; 植物生長調節物質; 發芽前之預處理; 鹽度; 高鹽耐受性; Hormone priming; Plant hormones; Pre-sowing treatment; Salinity; Salt tolerance; |
中文摘要 | 種子發芽前,分別以多元胺(2.5mM putrescine,5.0mM spermidine及2.5mM spermine)預先處理對之後幼苗之生長及內在生長調節物質之量的影響以兩種春小麥(Triticum aestivum L.)品系MH-97及Inqlab-91測試。實驗組及對照組之種子均種在鹽度為15dS m^(-1)之實驗田。雖然對兩種供試小麥之穀粒產量受鹽害之減低情形,三種多元胺均可改善;spermine之效果最好。三種多元胺均對MH-97葉內自由型離層酸(ABA)之減少(實驗組比對對照組)均有所改善,但以putrescine之效果最佳。相對地,putrescine在品系Inqlab-91內則最有效地增加葉內自由型indoleacetic acid,spermidine及spermine則在兩種供試品系處於鹽逆境下有效地增強葉中之水楊酸(salicylic acid)含量。以spermidine預處理之種子,之後在類逆境下葉中自由型之putrescine則以MH-97較對照組為高。相反地,在品系Inqlab-91所有三種多元胺之種子處理均導致之後發芽幼苗在類逆境下均比對照組有較低之葉中自由型putrescine,兩種品系之種子經putrescine預處理後,之後發芽之植物體在鹽逆境下均有最大量之葉中自由型spermidine。整體而言,多元有胺之種子預處理其好處依品種而異。自生理觀點而言,種子以spermine預處理之所以在鹽逆境下能改善兩種供試品種之穀粒產量,可能歸因於植物激素的平衡之改變。 |
英文摘要 | The effect of seed presowing treatment with polyamines (2.5mM putrescine, 5.0mM spermidine and 2.5mM spermine) on growth and internal levels of different plant growth regulators in two spring wheat (Triticum aestivum L.) cultivars MH-97 and Inqlab-91 was studied. The primed seeds of each treatment and non-primed seeds were sown in a field in which NaCl salinity of 15dS m^(-1) was developed. Although all three polyamines were effective in improving grain yield in both cultivars under saline conditions, the effect of spermine (Spm) was more pronounced. All priming agents reduced leaf free abscisic acid (ABA) levels in MH-97 as compared with untreated plants under saline conditions, but putrescine (Put) priming caused a maximum increase in leaf ABA concentration in MH-97 under saline conditions. In contrast, in Inqlab-91, Put proved to be very effective in increasing free indoleacetic acid (IAA) concentration under saline conditions. Spermidine (Spd) and Spm were very effective in enhancing salicylic acid (SA) concentration in both MH-97 and Inqlab-91 under saline conditions. Leaf free Put concentration was higher in plants of MH-97 raised from seeds treated with Spd under saline conditions. In contrast, all priming agents decreased leaf Put concentration compared with non-priming in Inqlab-91 under saline conditions. Plants of both cultivars raised from seeds treated with Put had the maximum Spm levels under saline conditions. Overall, the beneficial effects of priming agents (polyamines) were cultivar specific. Physiologically, the beneficial effect of pre-sowing treatment with Spm on grain yield in both cultivars may be attributed to altered hormonal balance. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。