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Chlorophyll fluorescence and water relations of salt-stressed plants 盐胁迫植物叶绿素荧光与水分的关系
Plant Science Letters Pub Date : 1985-01-01 DOI: 10.1016/0304-4211(85)90005-7
W.J.S. Downton, Jeny Millhouse
{"title":"Chlorophyll fluorescence and water relations of salt-stressed plants","authors":"W.J.S. Downton,&nbsp;Jeny Millhouse","doi":"10.1016/0304-4211(85)90005-7","DOIUrl":"10.1016/0304-4211(85)90005-7","url":null,"abstract":"<div><p>The yield of chlorophyll <em>a</em> variable fluorescence from leaves of grapevine, bean, barley, spinach, citrus (<em>Citrus myrtifolia</em>) and mangrove (<em>Avicennia marina</em>) remained unaffected by salt treatment declining only when excessive ion accumulation led to losses of cell turgor pressure. Salt treatment was found to accelerate the rate of fluorescence quenching after maximal fluorescence yield was attained in barley, spinach, citrus and mangrove, species which accumulate both sodium and chloride into their leaves, but not in grapevine or bean, species which accumulate chloride but exclude sodium from their leaves. Stimulation of fluorescence quenching in intact chloroplasts and thylakoids isolated from spinach was induced upon addition of sodium chloride, but not sorbitol. Energy-dependent fluorescence quenching associated with establishment of a pH gradient appears to be stimulated by sodium ion in isolated chloroplasts and thylakoids. In intact leaves stimulation of fluorescence quenching is more likely a consequence of accelerated photochemical reoxidation of Q, the stable electron acceptor of photosystem II.</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(85)90005-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80131070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
Solubilization of a digitonin-stable glucan synthase from red beet root 红甜菜根中洋地黄苷稳定葡聚糖合成酶的增溶
Plant Science Letters Pub Date : 1985-01-01 DOI: 10.1016/0304-4211(85)90003-3
Laura L. Eiberger, Carol L. Ventola, Bruce P. Wasserman
{"title":"Solubilization of a digitonin-stable glucan synthase from red beet root","authors":"Laura L. Eiberger,&nbsp;Carol L. Ventola,&nbsp;Bruce P. Wasserman","doi":"10.1016/0304-4211(85)90003-3","DOIUrl":"10.1016/0304-4211(85)90003-3","url":null,"abstract":"<div><p>UDP-glucose: 1,3-1,4 ß-glucan synthase was solubilized from red beet (<em>Beta vulgaris</em> L.) root microsomes by treatment with 1% digitonin at 30°C. The enzyme shows unusual stability for a solubilized glucan synthase, with full activity retention after storage for 1 week at 4°C.</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(85)90003-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85470042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Phytochrome control of gene expression in radish seedlings I. Far-red light mediated stimulation of polyribosome formation and appearance of translatable mRNAs 光敏色素对萝卜幼苗基因表达的控制。远红光介导的多核糖体形成和可翻译mrna的出现
Plant Science Letters Pub Date : 1985-01-01 DOI: 10.1016/0304-4211(85)90009-4
Pierre Fourcroy, Claude Lambert , Dominique Klein-Eude
{"title":"Phytochrome control of gene expression in radish seedlings I. Far-red light mediated stimulation of polyribosome formation and appearance of translatable mRNAs","authors":"Pierre Fourcroy,&nbsp;Claude Lambert ,&nbsp;Dominique Klein-Eude","doi":"10.1016/0304-4211(85)90009-4","DOIUrl":"10.1016/0304-4211(85)90009-4","url":null,"abstract":"<div><p>Illumination of radish seedlings with far-red light brings about an increase of the polyribosome content of cotyledons and hypocotyls. Poly(A)-containing RNA from cotyledons of both etiolated and far-red light-treated radish seedlings were isolated and translated in a rabbit reticulocyte lysate. The comparison of translation products showed that the relative levels of translatable mRNA coding for six abundant polypeptides were higher in the extracts of irradiated seedlings. The comparison of mRNA populations was also investigated with respect to organ specificity, polyribosomal localization and inhibition with the cap analoge, 7-methylguanosine 5′-phosphate (pm<sup>7</sup>G).</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1985-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(85)90009-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78196167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Antiethylene properties of silver thiosulphate in mung bean are lost in the dark 绿豆中硫代硫酸银的抗乙烯性能在黑暗中丧失
Plant Science Letters Pub Date : 1984-11-01 DOI: 10.1016/0304-4211(84)90202-5
Roy W. Curtis
{"title":"Antiethylene properties of silver thiosulphate in mung bean are lost in the dark","authors":"Roy W. Curtis","doi":"10.1016/0304-4211(84)90202-5","DOIUrl":"10.1016/0304-4211(84)90202-5","url":null,"abstract":"<div><p>Silver thiosulphate (STS) inhibited ethylene-induced leaf abscission from mung bean cuttings in the light but was completely inactive on cutting aged for 2 days in the dark. In the absence of ethephon, STS did not inhibit dark-induced leaf abscission, but when the leaf blades were removed, it inhibited abscission of the debladed petioles. These results are identical with those obtained using AgNO<sub>3</sub> and indicate that the loss of antiethylene activity of the silver ion in the dark is not dependent on the anion or on unrelated reactions induced by AgNO<sub>3</sub>.</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(84)90202-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78380304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Plant production in pea (Pisum sativum L. cvs. Puget and Upton) from long-term callus with superficial meristems 豌豆(Pisum sativum L. cvs)的植株生产。普吉特和厄普顿)从长期愈伤组织与表面分生组织
Plant Science Letters Pub Date : 1984-11-01 DOI: 10.1016/0304-4211(84)90217-7
G. Hussey, H.V. Gunn
{"title":"Plant production in pea (Pisum sativum L. cvs. Puget and Upton) from long-term callus with superficial meristems","authors":"G. Hussey,&nbsp;H.V. Gunn","doi":"10.1016/0304-4211(84)90217-7","DOIUrl":"10.1016/0304-4211(84)90217-7","url":null,"abstract":"<div><p>Vigorously growing calluses were obtained in <em>Pisum sativum</em> L. cvs. Puget and Upton (but not in cvs. Maro, Melton and Vedette) which have continuously regenerated shoots, over a period of nearly 3 years. The calluses were induced on the bases of plumules, excised from germinated seed, cultured on Murashige and Skoog (MS) medium supplemented with 1 mg 1<sup>−1</sup> 6-benzylaminopurine (BAP) and 4 and 8 mg 1<sup>−1</sup> indole-butyric acid (IBA). Shoot regeneration took place 2–4 weeks after transfer to the same medium with IBA reduced to 0.25 mg 1<sup>−1</sup> and has continued while the callus has been regularly subcultured to fresh media. Regenerated shoots could be propagated as shoot cultures and rooted on medium containing half-strength MS salts, 1.5% sucrose and 2 mg 1<sup>−1</sup> indole-3-acetic acid (IAA). Plants regenerated during the first year of callus growth were diploid and mostly morphologically normal. Plants regenerated after 2 years show variable morphology as shoot cultures and are more difficult to root.</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(84)90217-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81739752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 57
An Anacystis nidulans tolerant to lead which shows variation in photosystem 2 一种在光系统2中表现出变异的耐铅梭梭
Plant Science Letters Pub Date : 1984-11-01 DOI: 10.1016/0304-4211(84)90212-8
Reginald R. England, Christine J. Hughes, E.Hilary Evans
{"title":"An Anacystis nidulans tolerant to lead which shows variation in photosystem 2","authors":"Reginald R. England,&nbsp;Christine J. Hughes,&nbsp;E.Hilary Evans","doi":"10.1016/0304-4211(84)90212-8","DOIUrl":"10.1016/0304-4211(84)90212-8","url":null,"abstract":"<div><p>A strain of the cyanobacterium <em>Anacystis nidulans</em> has been isolated which is tolerant to lead. This strain exhibits increased photosynthetic oxygen evolution and lacks a 36 kDa peptide which is associated with the oxygen evolution mechanism. There is an increase in the level of a 12 kDa peptide whose function is uncertain.</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(84)90212-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88856055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Is photosynthesis during the induction period in maize limited by the availability of intercellular carbon dioxide? 玉米诱导期的光合作用是否受到细胞间二氧化碳供应的限制?
Plant Science Letters Pub Date : 1984-11-01 DOI: 10.1016/0304-4211(84)90200-1
Hideaki Usuda , Gerald E. Edwards
{"title":"Is photosynthesis during the induction period in maize limited by the availability of intercellular carbon dioxide?","authors":"Hideaki Usuda ,&nbsp;Gerald E. Edwards","doi":"10.1016/0304-4211(84)90200-1","DOIUrl":"10.1016/0304-4211(84)90200-1","url":null,"abstract":"<div><p>Whether stomatal conductance may limit C<sub>4</sub> photosynthesis during the induction period was investigated. When maize plants were illuminated (1400 μmol photon/m<sup>2</sup> · s) the rate of net photosynthesis gradually increased and reached a maximum rate after about 25 min. There was a similar increase in stomatal conductance during induction, indicating that stomatal opening tended to parallel the increase in photosynthesis. During the first 3–5 min of illumination the intercellular concentration of CO<sub>2</sub> gradually decreased below the atmospheric level and then reached a steady-state concentration (approx. 100–150 μl/l depending on the vapour pressure deficit). Thus, stomatal conductance does not limit photosynthesis during induction. Within a few minutes after illumination the stomata are regulated to maintain a relatively constant intercellular CO<sub>2</sub> concentration (C<em><sub>i</sub></em>) which is near saturation for photosynthesis.</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(84)90200-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78474778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
Stimulation of nadph-dependent lipid peroxidation by 2,4-dichlorophenoxyacetic acid, 2,4,5-trichlorophenoxyacetic acid and diquat in microsomes isolated from Pisum sativum 2,4-二氯苯氧乙酸、2,4,5-三氯苯氧乙酸和地奎特对油菜微粒体nadph依赖性脂质过氧化的刺激作用
Plant Science Letters Pub Date : 1984-11-01 DOI: 10.1016/0304-4211(84)90205-0
Sergei I. Pogosyan , Nikolai V. Shevchenko , Mark N. Merzlyak
{"title":"Stimulation of nadph-dependent lipid peroxidation by 2,4-dichlorophenoxyacetic acid, 2,4,5-trichlorophenoxyacetic acid and diquat in microsomes isolated from Pisum sativum","authors":"Sergei I. Pogosyan ,&nbsp;Nikolai V. Shevchenko ,&nbsp;Mark N. Merzlyak","doi":"10.1016/0304-4211(84)90205-0","DOIUrl":"10.1016/0304-4211(84)90205-0","url":null,"abstract":"<div><p>2,4-Dichlorophenoxyacetic acid (2,4-D), 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) and diquat (DQ) stimulate NADPH-dependent lipid peroxidation (in the presence of ADP-Fe<sup>2+</sup> complex) in microsomes from green leaves and etiolated seedlings. The activity was not shown with 2,6-D and 2,4,6-T which are non-active as herbicides. The stimulation was not observed when NADPH was replaced with NADH or ascorbate. It is suggested that the increasing of dark lipid peroxidation in microsomes plays some role in the toxicity of the herbicides to plants.</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(84)90205-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75304554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Increased levels of glutathione in a catalase-deficient mutant of barley (Hordeum vulgare L.) 大麦过氧化氢酶缺陷突变体谷胱甘肽水平升高
Plant Science Letters Pub Date : 1984-11-01 DOI: 10.1016/0304-4211(84)90198-6
I.K. Smith , A.C. Kendall, A.J. Keys, J.C. Turner, P.J. Lea
{"title":"Increased levels of glutathione in a catalase-deficient mutant of barley (Hordeum vulgare L.)","authors":"I.K. Smith ,&nbsp;A.C. Kendall,&nbsp;A.J. Keys,&nbsp;J.C. Turner,&nbsp;P.J. Lea","doi":"10.1016/0304-4211(84)90198-6","DOIUrl":"10.1016/0304-4211(84)90198-6","url":null,"abstract":"<div><p>The total glutathione content of leaves of the catalase deficient mutant barley RPr 79/4 increased 5- to 10-fold to a maximum of 3 μmol g<sup>−1</sup> fresh wt. after growth in air. The proportion of reduced glutathione (GSH) fell from 86% to 42% during this period. Similar results were obtained when wild-type barley leaves were treated with aminotriazole, a catalase inhibitor. It is proposed that the excess H<sub>2</sub>O<sub>2</sub> synthesised during photorespiration causes the formation of oxidised glutathione (GSSG).</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(84)90198-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76503004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 120
Isolation and culture of Trifolium rubens protoplasts with whole plant regeneration 红三叶草原生质体的分离与培养及整株再生
Plant Science Letters Pub Date : 1984-11-01 DOI: 10.1016/0304-4211(84)90220-7
J.W. Grosser, G.B. Collins
{"title":"Isolation and culture of Trifolium rubens protoplasts with whole plant regeneration","authors":"J.W. Grosser,&nbsp;G.B. Collins","doi":"10.1016/0304-4211(84)90220-7","DOIUrl":"10.1016/0304-4211(84)90220-7","url":null,"abstract":"<div><p>Protocols for the successful isolation and culture of <em>Trifolium rubens</em> protoplasts derived from leaf tissue and cell suspension cultures have been developed. High plating efficiencies were obtained with both sources of protoplasts. Whole plant regeneration from cultured protoplasts was achieved via somatic embryogenesis.</p></div>","PeriodicalId":20221,"journal":{"name":"Plant Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1984-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0304-4211(84)90220-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85645722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 38
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