蘋果SUMO E3連接酶MdSIZ1調(diào)控逆境應(yīng)答和花青苷積累的研究
[Abstract]:Post-translation modification plays an important role in eukaryotes. SUMO (small ubiquitin-related modifier (ubiquitin related modifier) is an important post-translation modification in eukaryotes. There are three enzymes involved in the process of SUMO binding substrate, namely E1 (activating enzyme), E2 (binding enzyme) and E3 (ligase). Plant SIZ1, as an E3 ligase, promotes the binding of substrate to target protein. Siz1 regulates SUMO binding under stress. SIZ1 protein has been found in Arabidopsis, rice, Dendrobium and apple. However, the mechanism of MdSIZ1 in apple, the only woody plant, has not been studied. In this study, we studied the function of MdSIZ1 in apple and the physiological process of its regulation. It has been found that MdSIZ1 in apple can play the role of SUMO E3 ligase in vivo and in vitro. Low temperature, high temperature and abscisic acid treatment can lead to the increase of SUMO binding level in apple tissue culture seedlings. The ectopic expression of MdSIZ1, in Arabidopsis mutant siz1-2 partially restored the defective phenotype and SUMO binding level of Arabidopsis thaliana. It has been proved that MdSIZ1 and At SIZ1 have similar functions, and MdSIZ1 mediated Sumo plays an important role in regulating plant adaptation to stress. AtSIZ1 regulated phosphorus deficiency stress in Arabidopsis thaliana. In this study, it was found that the expression of MdSIZ1 and the level of SUMO binding were significantly increased in the tissue culture seedlings treated with phosphorus deficiency. In apple, MYB transcription factor MdPHR1 induced by phosphorus deficiency was modified by sumo. Ectopic expression of MdSIZ1 gene partially restored the mutant phenotype of Arabidopsis mutants siz1-2 under phosphorus deficiency. It was also found that the survival rate of mutant siz1-2 was significantly lower than that of wild type under the condition of phosphorus deficiency, while the ectopic expression of MdSIZ1 gene partially restored the decrease of survival rate. In order to verify the effect of MdSIZ1 on phosphorus deficiency stress in apple, we studied MdSIZ1 transgenic calli with overexpression and silencing expression. The results showed that under the condition of phosphorus deficiency, the fresh weight of calli overexpressing MdSIZ1 was higher than that of wild type, while the calli silent expressing MdSIZ1 could not grow under the condition of phosphorus deficiency. It has been proved that the overexpression of MdSIZ1 improves the tolerance of apple to phosphorus deficiency stress. In apple, fruit color is an important appearance quality trait, and anthocyanin is an important secondary metabolite that determines apple fruit color. Anthocyanin synthesis is regulated by temperature, light, nutrients and plant hormones. Transcription factor MdMYB1 plays an important role in regulating anthocyanin synthesis. Yeast two-hybrid screening library was carried out with MdMYB1. The sequencing results of positive clones showed that MdMYB1 might interact with MdSIZ1, and then the interaction between MdMYB1 and Pull-Down, was double hybrid by yeast. As proved by Co-IP test. Subsequent studies showed that MdSIZ1, as a SUMO E3 ligase, regulated the summatization of MdMYB1, and the stability of MdMYB1 protein modified by sumo was improved to prevent its degradation by 26s proteasome. In addition, it was found that MdSIZ1 regulated anthocyanin synthesis through sumo MYB1 in calli and apple fruit. To sum up, MdSIZ1 plays an important role in apple adaptation to stress and regulation of secondary metabolism, so the study of the molecular mechanism of MdSIZ1 has certain guiding significance for improving apple resistance and improving apple quality.
【學(xué)位授予單位】:山東農(nóng)業(yè)大學(xué)
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2016
【分類號(hào)】:S661.1
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 齊建勛,郝艷賓,張玫,冷平;桃葉片中花青苷含量與葉綠素含量的相關(guān)關(guān)系[J];園藝學(xué)報(bào);2002年03期
2 李躍;劉延吉;;果實(shí)花青苷代謝機(jī)制及調(diào)控技術(shù)研究[J];安徽農(nóng)業(yè)科學(xué);2007年16期
3 潘牧;雷尊國(guó);鄧寬平;;彩色馬鈴薯花青苷研究進(jìn)展[J];農(nóng)產(chǎn)品加工(學(xué)刊);2010年08期
4 張春雨;王晶瑩;郭慶勛;周連霞;賈承國(guó);;越橘果實(shí)花青苷含量及其不同發(fā)育階段的變化[J];東北農(nóng)業(yè)大學(xué)學(xué)報(bào);2012年04期
5 張茜;楊健;王龍;王蘇珂;李秀根;張紹鈴;;紅皮梨著色與花青苷合成研究進(jìn)展[J];果樹(shù)學(xué)報(bào);2012年04期
6 張茜;楊健;王龍;王蘇珂;李秀根;張紹鈴;;‘紅太陽(yáng)’梨花青苷與可溶性糖的相關(guān)性分析及外源糖的增色作用研究[J];果樹(shù)學(xué)報(bào);2013年02期
7 王惠聰,黃旭明,胡桂兵,黃輝白;荔枝果皮花青苷合成與相關(guān)酶的關(guān)系研究[J];中國(guó)農(nóng)業(yè)科學(xué);2004年12期
8 鞠志國(guó);;輪紋病菌侵染與蘋果花青苷的合成[J];萊陽(yáng)農(nóng)學(xué)院學(xué)報(bào);1988年02期
9 傅友;溫度對(duì)蘋果花青苷合成的影響[J];河北果樹(shù);1993年03期
10 胡桂兵,陳大成,李平,歐陽(yáng)若,高飛飛,王衛(wèi)華;荔枝果皮花青苷與內(nèi)源激素含量的變化規(guī)律[J];福建果樹(shù);2000年01期
相關(guān)會(huì)議論文 前6條
1 劉安成;李慧;王亮生;龐長(zhǎng)民;;不同干燥方法對(duì)石榴果實(shí)花青苷的影響[A];中國(guó)植物園(第十四期)[C];2011年
2 牛姍姍;徐昌杰;張波;張望舒;李鮮;陳昆松;;楊梅花青苷合成及調(diào)節(jié)基因在三個(gè)不同色澤品種果實(shí)中的差異表達(dá)(摘要)[A];第二屆全國(guó)果樹(shù)分子生物學(xué)學(xué)術(shù)研討會(huì)論文集[C];2009年
3 王慶菊;呂福梅;沈向;;四種李屬紅葉樹(shù)種葉片花青苷提取及穩(wěn)定性研究[A];中國(guó)園藝學(xué)會(huì)第七屆青年學(xué)術(shù)討論會(huì)論文集[C];2006年
4 馮立娟;苑兆和;尹燕雷;招雪晴;;‘紅葉短枝'衛(wèi)矛變色期葉片中花青苷含量及其合成相關(guān)酶活性變化的研究[A];中國(guó)觀賞園藝研究進(jìn)展2012[C];2012年
5 田鵬;魏聞東;蘇艷麗;;紅太陽(yáng)果實(shí)花青苷含量、pH和SSC變化及相關(guān)性研究[A];梨科研與生產(chǎn)進(jìn)展(五)[C];2011年
6 胡桂兵;王惠聰;高飛飛;陳大成;;套袋過(guò)程中荔枝果皮內(nèi)色素的變化動(dòng)態(tài)[A];中國(guó)園藝學(xué)會(huì)第五屆青年學(xué)術(shù)討論會(huì)論文集[C];2002年
相關(guān)博士學(xué)位論文 前10條
1 魏海蓉;甜櫻桃果實(shí)花青苷形成的生理生化與轉(zhuǎn)錄組分析[D];山東農(nóng)業(yè)大學(xué);2015年
2 張蕊芬;蘋果SUMO E3連接酶MdSIZ1調(diào)控逆境應(yīng)答和花青苷積累的研究[D];山東農(nóng)業(yè)大學(xué);2016年
3 馮守千;紅梨著色機(jī)理的研究[D];山東農(nóng)業(yè)大學(xué);2011年
4 張潔;四種觀賞植物花青苷分析及其花色形成機(jī)制[D];西北農(nóng)林科技大學(xué);2011年
5 劉玉蓮;不同色澤類型蘋果著色期糖酸變化及花青苷合成特性研究[D];西北農(nóng)林科技大學(xué);2013年
6 陳靜;花青苷對(duì)番茄(Lycopersicon esculentum Mill.)幼苗葉片光合機(jī)構(gòu)的保護(hù)作用及番茄花青苷結(jié)構(gòu)特性的研究[D];西北農(nóng)林科技大學(xué);2005年
7 俞波;紅色砂梨花青苷生物合成相關(guān)基因分離及表達(dá)研究[D];浙江大學(xué);2012年
8 劉曉芬;MYB-bHLH-WD40對(duì)楊梅花青苷生物合成的轉(zhuǎn)錄調(diào)控機(jī)制[D];浙江大學(xué);2013年
9 謝興斌;蘋果bHLH轉(zhuǎn)錄因子MdTTL1對(duì)低溫誘導(dǎo)花青苷合成和果實(shí)著色的多途徑調(diào)控[D];山東農(nóng)業(yè)大學(xué);2011年
10 安秀紅;蘋果MdTTG1、MdMYB9與MdMYB11基因調(diào)控花青苷合成的作用機(jī)制研究[D];山東農(nóng)業(yè)大學(xué);2013年
相關(guān)碩士學(xué)位論文 前10條
1 吳然;蘋果銹果類病毒的時(shí)空分布規(guī)律及對(duì)花青苷合成和相關(guān)基因的影響[D];河北農(nóng)業(yè)大學(xué);2015年
2 陳磊;采前ALA/GNT處理和氣調(diào)貯藏方式對(duì)蘋果花青苷及相關(guān)基因表達(dá)的影響[D];陜西師范大學(xué);2015年
3 李霞;施鉀對(duì)紫甘薯塊根花青苷積累的影響[D];江蘇師范大學(xué);2014年
4 孫志偉;桃果肉中花青苷合成相關(guān)轉(zhuǎn)錄因子基因MYB的克隆及其表達(dá)分析[D];南京農(nóng)業(yè)大學(xué);2014年
5 王艷龍;黑米花青苷提取及其在酒溶液中穩(wěn)定性的研究[D];陜西理工學(xué)院;2010年
6 趙鑫;天然花青苷提取純化及降血脂作用的研究[D];東北林業(yè)大學(xué);2005年
7 畢秀麗;花青苷在高溫強(qiáng)光下對(duì)蘋果葉片及果皮的保護(hù)機(jī)制[D];西北農(nóng)林科技大學(xué);2014年
8 杜紀(jì)紅;桃果實(shí)花青苷和糖酸含量變化及其與套袋關(guān)系研究[D];南京農(nóng)業(yè)大學(xué);2007年
9 閆偉明;紫皮大蒜鱗莖外皮花青苷生物合成影響因素和相關(guān)酶研究[D];西北農(nóng)林科技大學(xué);2014年
10 華星;藍(lán)莓果實(shí)關(guān)鍵品質(zhì)形成規(guī)律及花青苷合成相關(guān)酶的研究[D];北京林業(yè)大學(xué);2012年
,本文編號(hào):2480934
本文鏈接:http://sikaile.net/shoufeilunwen/nykjbs/2480934.html