华北农学报
華北農學報
화북농학보
ACTA AGRICULTURAE BOREALI-SINICA
2014年
5期
168-174
,共7页
李媛%李武%莫钊文%闻祥成%王抄抄%徐刚红%李妹娟%聂俊%唐湘如
李媛%李武%莫釗文%聞祥成%王抄抄%徐剛紅%李妹娟%聶俊%唐湘如
리원%리무%막쇠문%문상성%왕초초%서강홍%리매연%섭준%당상여
香稻%盐%水杨酸%2-AP%生理特性
香稻%鹽%水楊痠%2-AP%生理特性
향도%염%수양산%2-AP%생리특성
Aromatic rice%Salt%SA%2-AP%Physiological characteristics
为探明水杨酸和盐对香稻和非香稻幼苗生理特性的影响,以香稻品种农香18和非香稻品种华航丝苗为材料,设置水杨酸(SA)0,1 mmol/L和盐(NaCl)0,50 mmol/L浸种处理,测定了幼苗叶片和茎鞘超氧化物超化酶(SOD)活性、过氧化物酶( POD)活性、丙二醛( MDA)含量、可溶性蛋白含量、脯氨酸含量及香稻香气2-AP含量。 SA、盐以及两者的混合溶液浸后,香稻2-AP含量均显著增加。1 mmol/L水杨酸与50 mmol/L盐混合溶液处理显著提高香稻幼苗脯氨酸含量而对非香稻品种无显著影响;50 mmol/L盐溶液处理可显著提高香稻和非香稻幼苗茎鞘POD活性及香稻幼苗茎鞘SOD活性;1 mmol/L水杨酸处理显著提高香稻和非香稻幼苗叶片脯氨酸含量及香稻幼苗POD活性。SOD、脯氨酸和POD是水稻幼苗响应水杨酸和盐浸种处理的主要生理特性指标。盐胁迫下香稻2-AP含量增加, SA可缓解盐胁迫,同时可提高香稻2-AP含量。
為探明水楊痠和鹽對香稻和非香稻幼苗生理特性的影響,以香稻品種農香18和非香稻品種華航絲苗為材料,設置水楊痠(SA)0,1 mmol/L和鹽(NaCl)0,50 mmol/L浸種處理,測定瞭幼苗葉片和莖鞘超氧化物超化酶(SOD)活性、過氧化物酶( POD)活性、丙二醛( MDA)含量、可溶性蛋白含量、脯氨痠含量及香稻香氣2-AP含量。 SA、鹽以及兩者的混閤溶液浸後,香稻2-AP含量均顯著增加。1 mmol/L水楊痠與50 mmol/L鹽混閤溶液處理顯著提高香稻幼苗脯氨痠含量而對非香稻品種無顯著影響;50 mmol/L鹽溶液處理可顯著提高香稻和非香稻幼苗莖鞘POD活性及香稻幼苗莖鞘SOD活性;1 mmol/L水楊痠處理顯著提高香稻和非香稻幼苗葉片脯氨痠含量及香稻幼苗POD活性。SOD、脯氨痠和POD是水稻幼苗響應水楊痠和鹽浸種處理的主要生理特性指標。鹽脅迫下香稻2-AP含量增加, SA可緩解鹽脅迫,同時可提高香稻2-AP含量。
위탐명수양산화염대향도화비향도유묘생리특성적영향,이향도품충농향18화비향도품충화항사묘위재료,설치수양산(SA)0,1 mmol/L화염(NaCl)0,50 mmol/L침충처리,측정료유묘협편화경초초양화물초화매(SOD)활성、과양화물매( POD)활성、병이철( MDA)함량、가용성단백함량、포안산함량급향도향기2-AP함량。 SA、염이급량자적혼합용액침후,향도2-AP함량균현저증가。1 mmol/L수양산여50 mmol/L염혼합용액처리현저제고향도유묘포안산함량이대비향도품충무현저영향;50 mmol/L염용액처리가현저제고향도화비향도유묘경초POD활성급향도유묘경초SOD활성;1 mmol/L수양산처리현저제고향도화비향도유묘협편포안산함량급향도유묘POD활성。SOD、포안산화POD시수도유묘향응수양산화염침충처리적주요생리특성지표。염협박하향도2-AP함량증가, SA가완해염협박,동시가제고향도2-AP함량。
The purpose of this study was to investigate the effects of salicylic acid ( SA) and salt on some phys-iological characteristics of aromatic and non-aromatic rice seedlings .Aromatic rice Nongxiang 18 and non-aromatic rice Huahangsimiao were used as materials ,seed pre-soaking treatments were SA treatment ( Seeds soaked in 0 and 1 mmol/L of SA) and salt treatment(Seeds soaked in 0 and 50 mmol/L of NaCl).The SOD activity,POD activity, soluble protein content ,proline content ,MDA content in leaves and culm and sheath of rice seedling and 2-AP con-tent in leaves and culm and sheath of aromatic rice were studied .The results showed that SA ,NaCl and SA+NaCl treatments significantly increased 2-AP content in aromatic rice seedling .The 1 mmol/L SA +50 mmol/L NaCl treatment significantly increased proline content in aromatic rice seedling ,no significant difference was observed in non-aromatic rice;50 mmol/L NaCl treatment significantly increased POD in culm and sheath of aromatic rice and non-aromatic rice seedling ,and significantly increased SOD increased in aromatic rice seedling;1 mmol/L SA treat-ment significantly increased proline content in leaves of both aromatic rice and non-aromatic rice seedling ,and sig-nificantly increased POD activity in aromatic rice seedlings.These results indicated that the SOD, POD activity and proline content in rice seedlings were the main index respond to pre-soaking by SA and salt .SA relived salt stress and significantly increased 2-AP.