{"title":"珍珠粟(Pennisetum americanum)苗木脱落酸积累的抑制作用[j]。[Leeke])去氟拉唑诱导褐变","authors":"I.E. Henson","doi":"10.1016/S0044-328X(84)80076-8","DOIUrl":null,"url":null,"abstract":"<div><p>Shoots from four-day old light-grown pearl millet (<em>Pennisetum americanum</em> [L.] Leeke) seedlings, grown continuously in the presence of 1.32 × 10<sup>-5</sup>M norflurazon (NF), lacked chlorophyll and failed to accumulate abscisic acid (ABA) when water stressed. Chlorophyll and stress-induced ABA contents were significantly correlated (<em>r</em> = 0.82, <em>P</em><0.001) for seedling shoots treated with a range of NF concentrations.</p><p>No inhibitory effect on ABA accumulation by NF occurred if seedlings were grown at low light intensity (<20 μmol m<sup>-2</sup> s<sup>-1</sup> photosynthetic photon flux density), or if NF was applied 3 days after sowing to already greened seedlings. Neither was ABA accumulation affected by the related non-bleaching compound, SAN 9785.</p><p>The results suggest that norflurazon had no «direct» effect on ABA accumulation. The possibility that structurally and functionally intact chloroplasts are required for this process is discussed.</p></div>","PeriodicalId":23797,"journal":{"name":"Zeitschrift für Pflanzenphysiologie","volume":"114 1","pages":"Pages 35-43"},"PeriodicalIF":0.0000,"publicationDate":"1984-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0044-328X(84)80076-8","citationCount":"51","resultStr":"{\"title\":\"Inhibition of Abscisic Acid Accumulation in Seedling Shoots of Pearl Millet (Pennisetum americanum [L.] Leeke) Following Induction of Chlorosis by Norflurazon\",\"authors\":\"I.E. Henson\",\"doi\":\"10.1016/S0044-328X(84)80076-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Shoots from four-day old light-grown pearl millet (<em>Pennisetum americanum</em> [L.] Leeke) seedlings, grown continuously in the presence of 1.32 × 10<sup>-5</sup>M norflurazon (NF), lacked chlorophyll and failed to accumulate abscisic acid (ABA) when water stressed. Chlorophyll and stress-induced ABA contents were significantly correlated (<em>r</em> = 0.82, <em>P</em><0.001) for seedling shoots treated with a range of NF concentrations.</p><p>No inhibitory effect on ABA accumulation by NF occurred if seedlings were grown at low light intensity (<20 μmol m<sup>-2</sup> s<sup>-1</sup> photosynthetic photon flux density), or if NF was applied 3 days after sowing to already greened seedlings. Neither was ABA accumulation affected by the related non-bleaching compound, SAN 9785.</p><p>The results suggest that norflurazon had no «direct» effect on ABA accumulation. The possibility that structurally and functionally intact chloroplasts are required for this process is discussed.</p></div>\",\"PeriodicalId\":23797,\"journal\":{\"name\":\"Zeitschrift für Pflanzenphysiologie\",\"volume\":\"114 1\",\"pages\":\"Pages 35-43\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1984-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S0044-328X(84)80076-8\",\"citationCount\":\"51\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zeitschrift für Pflanzenphysiologie\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0044328X84800768\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für Pflanzenphysiologie","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0044328X84800768","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Inhibition of Abscisic Acid Accumulation in Seedling Shoots of Pearl Millet (Pennisetum americanum [L.] Leeke) Following Induction of Chlorosis by Norflurazon
Shoots from four-day old light-grown pearl millet (Pennisetum americanum [L.] Leeke) seedlings, grown continuously in the presence of 1.32 × 10-5M norflurazon (NF), lacked chlorophyll and failed to accumulate abscisic acid (ABA) when water stressed. Chlorophyll and stress-induced ABA contents were significantly correlated (r = 0.82, P<0.001) for seedling shoots treated with a range of NF concentrations.
No inhibitory effect on ABA accumulation by NF occurred if seedlings were grown at low light intensity (<20 μmol m-2 s-1 photosynthetic photon flux density), or if NF was applied 3 days after sowing to already greened seedlings. Neither was ABA accumulation affected by the related non-bleaching compound, SAN 9785.
The results suggest that norflurazon had no «direct» effect on ABA accumulation. The possibility that structurally and functionally intact chloroplasts are required for this process is discussed.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
