RESISTANCE, SUSCEPTIBILITY AND ACCUMULATION OF GLYCEOLLINS-I-III IN SOYBEAN ORGANS INOCULATED WITH PHYTOPHTHORA-MEGASPERMA F SP-GLYCINEA
RESISTANCE, SUSCEPTIBILITY AND ACCUMULATION OF GLYCEOLLINS-I-III IN SOYBEAN ORGANS INOCULATED WITH PHYTOPHTHORA-MEGASPERMA F SP-GLYCINEA
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DOI：
10.1016/s0048-4059(86)80023-6
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发表时间：
1986-09-01
影响因子：
2.7
通讯作者：
WARD, EWB
中科院分区：
文献类型：
--
作者：
BHATTACHARYYA, MK;WARD, EWB
大精子疫霉f对游动孢子接种的抗性和敏感性表达。 sp。在大豆品种 Harosoy (rps1) 和 Harosoy 63 (Rps1) 的根下胚轴、黄化幼苗和绿色幼苗的子叶以及叶片中测定了大豆小种 1。除黄化幼苗的子叶外，所有处理的器官均表现出基因特异性抗性。在每种情况下，抗性反应中积累的甘油蛋白浓度都高于敏感反应中；下胚轴的差异最大，根的差异最小。甘油蛋白I、II和III的相对比例随器官、幼苗的光照情况、相互作用类型和培养时间的不同而变化。甘油酸 I 是根中相对最丰富的异构体，下胚轴中含量较少。甘油三醇III是叶子中相对最丰富的异构体。在时程实验中观察到积累率的主要差异，并且在达到最大值后，叶子中的所有三种异构体均减少，下胚轴中的甘油 I 减少，这表明浓度和异构体比例受到生物合成和代谢速率的精细控制。
The expression of resistance and susceptibility to inoculation with zoospores of Phytophthora megasperma f. sp. glycinea race 1 was determined in roots hypocotyls, and cotyledons of etiolated and green seedlings and in leaves of soybean cvs Harosoy (rps1) and Harosoy 63 (Rps1). Gene-specific resistance was demonstrated in all organs treated, except for cotyledons of etiolated seedlings. In each case higher concentrations of the glyceollins accumulated in resistant than in susceptible reactions; the differential being greatest in hypocotyls and smallest in roots. The relative proportions of glyceollins I, II and III varied with the organ, exposure of the seedlings to light, the interaction type and the incubation period. Glyceollin I was relatively the most abundant isomer in roots and to a lesser extent in hypocotyls. Glyceollin III was relatively the most abundant isomer in leaves. Major differences in accumulation rates were observed in time-course experiments and, after reaching a maximum, all three isomers decreased in leaves and glyceollin I decreased in hypocotyls, suggesting that concentrations and hence isomeric proportions were finely controlled by rates of biosynthesis and metabolism.