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We propose that ORFL3 gene product may have roles in iron transport. Under BG11〓 culture conditions, ML3 also can induce heterocysts, But heterocyst development was a little different, there were many heterocysts at two ends of filaments.
但在铁缺失条件下ML3生长缓慢,光合色素含量低,蛋白质合成慢,表明ORFL3基因产物对在缺铁条件下的生长是必要的。
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In iron-deficient cells, photosynthetic pigments content decreased, efficiency of photosynthesis was low, With the increase of the concentration of the iron-chelator 2, 2'-Dipyridyl in media, Fv/Fm decreased, indicating photoinhibition increased, the results were consistent with previous research; Heterocyst induction had one delayed time dependent on the status of iron-deficiency, More severe of the iron-deficiency condition, more late of the heterocyst induction, It is possible that certain iron-related genes may directly regulate heterocyst development; under different iron limitation conditions, Protein pattern were different, more serious of the iron-deficiency conditions, less bands of the protein pattern, We could not find the iron-deficiency induced protein; In general the toxic effects of ROS were potentiated by excess iron, But our results revealed that even under iron-deficiency conditions, Oxidative damage existed.
铁限制的细胞光合色素含量下降,光合作用能力下降,随着铁螯合剂2,2'-dipyridyl浓度的增加,叶绿素荧光F〓/F〓逐渐降低,显示光抑制变强。与前人的研究结果相似;依赖铁缺失状态,异形胞诱导有一段推迟的时间,铁缺失越严重,诱导越迟,推断某些铁相关的基因会直接调节异形胞发育;在不同铁营养条件下,蛋白质图谱的变化趋势很明显,缺铁越严重,则蛋白质谱带数愈少,但本文未能找到特异诱导蛋白;一般认为铁过量情况下ROS产生加强,本文结果显示即便在铁缺失条件下,也有氧化胁迫伤害,而且缺铁越严重,活性氧伤害越大。
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The result of the leaf anotomical structure, the chloroplast pigment contents and the photosynthetic characteristics can provide diagnosis and correction of the iron deficency, according to the degree of chlorotic leaf The regreening effect of iron compounds, concentration, pH value and mixture more compounds were stud...
对不同程度黄化叶片的解剖结构、叶绿体色素和光合特性的分析为缺铁黄化诊断和矫治提供依据。
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In the seedlings time, the content of chlorophyll decreased by the deficiency of B, but the content of chlorophyll in the high efficiency cultivar decreased slowly than that of the low efficiency cultivar. This suggested that the leaves of the high efficiency cultivar can capture more light energy and the photosynthetic rate of the high efficiency cultivar decreased slowly. In the bolting time and blooming time, after two weeks of B deficiency treatment, the content of chlorophyll in the top leaves of the high efficiency cultivar decreased, and in the late time, the content of chlorophyll decreased slowly. But, the content of chlorophyll in the bellow leaves of the two cultivars had little changes. The reason may be that B in the high efficiency cultivar distributed to the propagative organ in the late growth, and the leaves were short of B.
苗期,缺硼导致甘蓝型油菜色素含量降低,且高效品种色素含量下降的幅度小于低效品种,表明营养生长阶段,同等程度的缺硼条件下,高效品种叶片对光能的收集能力以及光合速率下降的程度相对较小;苔期和花期,在两周的缺硼处理后,高效品种上部叶色素含量依然呈下降趋势,但随着生育期的推移,其下降幅度减小;而高效品种下部叶和低效品种叶片含量变化不大,可能是甘蓝型油菜进入生殖生长阶段后,高效品种将硼更多地分配到繁殖器官,而其叶片却承受了相对较大的缺硼胁迫。
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Calcium, blood calcium decreased, the brain caused by increased nerve excitability plant, resulting in baby night waking, night terrors, night irritability, sleep; baby should be given calcium and vitamin D and more sun: A, calcium: elemental calcium daily 200-300mg (1) Composite Calcium Granule: 2-3 packets a day (each contains calcium 100mg)(2) the activity of calcium granules: 4-6 packets per day (calcium per tablet 50mg) B, fill D : daily 400-800IU (1) concentrated cod liver oil drops: 2-4 drops per day (2) vitamin D2 candy: the daily 400-800IU (3) vitamin D3 injections: once a month, 20-300000 IU attention these objects must be a doctor's prescription, prescribed application. C, to the sun to vitamin D, ultraviolet radiation to the skin 7 - dehydrocholesterol into vitamin D3, to help calcium absorption, could be a day outdoors on the sun for half an hour each afternoon. 3, bile is a yellow pigment bilirubin, was it yellow staining and faeces, after bilirubin by oxidation into biliverdin, thus making green manure, the manure discharge encountered in diapers in the air oxygen, so that oxidation of bilirubin biliverdin, so that the surface of green manure.
缺钙、血钙降低,引起大脑植物性神经兴奋性增高,导致孩子夜醒、夜惊、夜间烦躁不安,睡不安稳;应给孩子补钙和维生素D并多晒太阳:A、补钙:每日元素钙200-300mg(1)复合钙冲剂:每日2-3包(每包含钙100mg)(2)活性钙冲剂:每日4-6包(每片含钙50mg)B、补D:每日400-800IU(1)浓缩鱼肝油滴剂:每日2-4滴(2)维生素D2糖丸:每日400-800IU(3)维生素D3针剂:每月一次,20-30万IU注意上述物均须医生处方,遵医嘱应用。C、向太阳要维生素D,紫外线要将皮下7-脱氢胆固醇转变成维生素D3,帮助钙的吸收,可每天户外上下午各晒半小时。3、胆汁中胆红素是一种黄色色素,被它染色及粪便呈黄色,胆红素经氧化过后变为胆绿素,从而使粪便呈绿色,排出的粪便在尿布中遇到空气中的氧,胆红素使氧化成胆绿素,使粪便的表面呈绿色。
- 更多网络解释与缺色素的相关的网络解释 [注:此内容来源于网络,仅供参考]
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aniridia:无虹膜症
lens)无虹膜症(aniridia)等 (三)伴有先天性的晶体异位或脱位 1 Marfan综合征 是一种不规则的常染色体显性遗传病为全身中胚叶组织广泛紊乱以眼心血管和骨骼系统异常为特征Marfan于1896年首先报告眼部异常表现为晶体异位尤其是向上和向颞侧移位由于虹膜色素层缺如可产生后透照试验阳性瞳孔开大肌局部缺如使药物难以将瞳孔散大
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achromatization:无色彩, 消色差
achromatistous | 无色的, 缺色素的 | achromatization | 无色彩, 消色差 | achromatize | 使消色, 使无色