Hypernodulation of Soybean, Mung Bean, and Hyacinth Bean Is Controlled by a Common Shoot Signal
Hypernodulation of Soybean, Mung Bean, and Hyacinth Bean Is Controlled by a Common Shoot Signal
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大豆、绿豆和风信子豆的过度结瘤由共同的芽信号控制
DOI：
10.2135/cropsci1997.0011183x003700040035x
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发表时间：
1997
期刊：
影响因子：
2.3
通讯作者：
M. H. Abd‐Alla
中科院分区：
文献类型：
--
作者：
J. E. Harper;K. Corrigan;A. Barbera;M. H. Abd‐Alla
确定豆科植物之间的共生控制共性将有助于提高农业系统中共生固氮的进展。大豆[Glycine max（L.）Merr]和绿豆（Vigna radiata L.），或大豆和扁豆（Lablab purpureus L.），进行了评估是否一个共同的可转位的信号控制豆科植物物种之间的高表达。嫁接'NOD 1 -3'（hyperemulating soybean）芽到绿豆或扁豆的根导致hyperemulsion，绿豆根瘤数增加4.1倍，扁豆根瘤数增加2.7- 5.5倍（取决于细菌菌株），分别相对于自嫁接绿豆或扁豆。“威廉姆斯82”新梢与绿豆根嫁接，根瘤数增加一倍，但与扁豆根嫁接，对结瘤没有影响。嫁接到威廉姆斯82和NOD 1 -3大豆苗上的绿豆根系的共生固氮（通过植株中氮的积累来衡量）比自嫁接的绿豆植株提高了67%和78%。将大豆苗嫁接到扁豆根上对共生固氮有积极影响（9-40%取决于细菌菌株），但其幅度小于将绿豆根嫁接到大豆苗上时所观察到的。由此得出的结论是，控制hyperemulsion表达的芽传递因子是常见的大豆，绿豆，和扁豆。从大豆和绿豆之间的相互嫁接获得种子，以测试细菌对感染和根瘤发育的特异性。从相互绿豆大豆嫁接苗后代没有改变细菌的特异性，以促进。
Identification of commonality of nodulation control among legumes will facilitate progress in improving symbiotic N 2 fixation in agricultural systems. Interspecies grafts between soybean [Glycine max (L.) Merr] and mung bean (Vigna radiata L.), or soybean and hyacinth bean (Lablab purpureus L.), were made to evaluate whether a common translocatable signal controls expression of hypernodulation among legume species. Grafting of a 'NOD1-3' (hypernodulating soybean) shoot to roots of mung bean or hyacinth bean resulted in hypernodulation, a 4.1-fold increase in nodule number for mung bean, and a 2.7- to 5.5-fold increase (depending on bacterial strain) in nodule number for hyacinth bean, relative to self-grafted mung bean or hyacinth bean, respectively. 'Williams 82' shoots doubled nodule number when grafted to mung bean roots, but had no effect on nodulation when grafted to hyacinth bean roots. Symbiotic N 2 fixation (as measured by nitrogen accumulation in the plant) by nodulated mung bean roots was enhanced by 67% when grafted to Williams 82 and by 78% when grafted to NOD1-3 soybean shoots, compared with self-grafted mung bean plants. Grafting soybean shoots to hyacinth bean roots positively affected symbiotic N 2 fixation (9-40% depending on bacterial strain), but the magnitude was less than observed when mung bean roots were grafted to soybean shoots. It was concluded that control of hypernodulation expression by a shoot-transmissible factor is common among soybean, mung bean, and hyacinth bean. Seed were obtained from reciprocal grafts between soybean and mung bean to test for bacterial specificity for infection and nodule development. Seedling progeny from the reciprocal mung bean-soybean grafts were not altered in terms of bacterial specificity for nodulation.