Effects of brassinosteroid, auxin, and cytokinin on ethylene production in Arabidopsis thaliana plants.
Effects of brassinosteroid, auxin, and cytokinin on ethylene production in Arabidopsis thaliana plants.
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黄铜固醇，生长素和细胞分裂素对拟南芥植物乙烯生产的影响。
DOI：
10.1093/jxb/ern159
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发表时间：
2008
影响因子：
6.9
通讯作者：
Arteca, Jeannette M.
中科院分区：
文献类型：
--
作者：
Arteca, Richard N.;Arteca, Jeannette M.
与测试的其他植物部分相比，花序茎对 IAA 的反应产生的乙烯量最高。叶龄对 IAA 诱导的乙烯有影响，最年轻的叶子表现出最大的刺激。 IAA 诱导的乙烯量最高产生于根部或花序尖端，低于此值的区域产生的乙烯量较少。用 IAA、2,4-D 或 NAA 在一定浓度范围内处理的花序茎表现出乙烯产量从 1 μM 开始增加，直至 100 μM 时反应逐渐增强，随后在 500 μM 处达到稳定状态，并在 1000 μM 处显着下降。在花序茎中测试的所有浓度下，2,4-D 和 NAA 都比 IAA 引起更大的反应。用 IAA、2,4-D 或 NAA 处理的花序叶表现出与花序茎相同的趋势。然而，它们产生的乙烯明显减少。用 100 μM IAA 处理的花序茎和叶在处理开始后 2 小时表现出乙烯产量的显着增加。处理开始后 4 小时，花序茎进一步增加，6 小时后不再增加。然而，6小时至24小时之间略有下降。花序叶在 2 小时和 24 小时之间表现出相似的 IAA 诱导乙烯速率。光和高温导致花序茎和叶中 IAA 诱导的乙烯减少。评估了三种生长素不敏感突变体的花序对 IAA 的反应性。 aux2 不会响应 100 μM IAA 产生乙烯，而 axr1-3 和 axr1-12 与 Columbia 野生型相比，IAA 诱导的乙烯水平降低。单独用油菜素内酯处理的花序对乙烯产生没有影响。然而，当芸苔素内酯与IAA组合使用时，乙烯产量显着增加，超过单独使用IAA所促进的诱导。
Inflorescence stalks produced the highest amount of ethylene in response to IAA as compared with other plant parts tested. Leaf age had an effect on IAA-induced ethylene with the youngest leaves showing the greatest stimulation. The highest amount of IAA-induced ethylene was produced in the root or inflorescence tip with regions below this producing less. Inflorescence stalks treated with IAA, 2,4-D, or NAA over a range of concentrations exhibited an increase in ethylene production starting at 1 μM with increasingly greater responses up to 100 μM, followed by a plateau at 500 μM and a significant decline at 1000 μM. Both 2,4-D and NAA elicited a greater response than IAA at all concentrations tested in inflorescence stalks. Inflorescence leaves treated with IAA, 2,4-D, or NAA exhibited the same trend as inflorescence stalks. However, they produced significantly less ethylene. Inflorescence stalks and leaves treated with 100 μM IAA exhibited a dramatic increase in ethylene production 2 h following treatment initiation. Inflorescence stalks showed a further increase 4 h following treatment initiation and no further increase at 6 h. However, there was a slight decline between 6 h and 24 h. Inflorescence leaves exhibited similar rates of IAA-induced ethylene between 2 h and 24 h. Light and high temperature caused a decrease in IAA-induced ethylene in both inflorescence stalks and leaves. Three auxin-insensitive mutants were evaluated for their inflorescence's responsiveness to IAA. aux2 did not produce ethylene in response to 100 μM IAA, while axr1-3 and axr1-12 showed reduced levels of IAA-induced ethylene as compared with Columbia wild type. Inflorescences treated with brassinolide alone had no effect on ethylene production. However, when brassinolide was used in combination with IAA there was a dramatic increase in ethylene production above the induction promoted by IAA alone.
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影响因子：
6.4
作者：
Arteca, RN;Arteca, JM
通讯作者：
Arteca, JM
DOI：
10.1073/pnas.45.3.335
发表时间：
1959-01-01
影响因子：
11.1
作者：
BURG, SP;THIMANN, KV
通讯作者：
THIMANN, KV
影响因子：
4.3
作者：
DELAAT, AMM;BRANDENBURG, DCC;VANLOON, LC
通讯作者：
VANLOON, LC
影响因子：
4.2
作者：
SAKURAI, A;FUJIOKA, S
通讯作者：
FUJIOKA, S
影响因子：
4.3
作者：
WRIGHT, STC
通讯作者：
WRIGHT, STC