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在人工光照下种植的转基因茄子果实中,β-胡卜素的积累很高

Ryohei Yamamoto¹, Seigo Higuchi¹, Yuji Iwata²

¹Faculty of Agriculture, Ryukoku University, 1-5 Yokotani, Seta Oe-cho, Otsu, Shiga 520-2194, Japan.

Plant biotechnology (Tokyo, Japan)

|October 28, 2024

概括

经过基因改造以产生β-胡卜素的转基因茄子在人工照明下显示出明显更高的积累. 然而,增加的β-胡卜素可能会抑制水果的发育,而LED照明可能不足以提供最佳的水果组.

科学领域:

农业科学农业科学
植物生物技术植物生物技术
营养生物化学营养生物化学

背景情况:

茄子 (Solanum melongena L.) 的水果自然含有低水平的胡卜素,与西红等相关物种不同.
以前的研究成功地将β-胡卜素生物合成基因 (crtB) 引入茄子,导致温室种植的水果中适度的积累.

研究的目的:

在人工照明条件下 (HID和LED) 评估转基因茄子水果中的β-胡卜素积累.
评估增强的β-胡卜素水平对茄子果实发育和设置的影响.
研究不同光源对转基因茄子生长和产量的影响.

主要方法:

含有crtB基因的转基因茄子系 (T1和T2代) 在人工气候室中生长.
在高强度放电 (HID) 和发光二极管 (LED) 照明下,分析了水果中的β-胡卜素含量.
转基因 (T-DNA+) 和非转基因 (T-DNA-) 植物之间的水果重量和大小进行了比较.

主要成果:

转基因茄子水果中的β-胡卜素积累平均为8.83μg g-1 FW,大约是之前温室效应结果的五倍.
在HID和LED照明之间,或T1和T2代之间,没有发现β-胡卜素水平的显著差异.
与非转基因对照组相比,转基因水果的重量和尺寸显著减少,这表明潜在的生长抑制.
与HID条件相比,在LED照明下的部分植物显示果减少或果实较小.

结论:

人工照明,特别是HID,可以支持转基因茄子中的高β-胡卜素积累.
升高的β-胡卜素水平可能会对茄子果实发育产生负面影响,需要进一步调查.
测试的LED照明条件可能不足以促进这些转基因菌株的果实发育.
这些发现为在受控环境下选择和种植高β-胡卜素茄子品种提供了洞察力.

关键词:

茄子茄子茄子茄子果子的果子的果子的果子的果子基因工程是基因工程,是基因工程.乙-胡卜素 β-胡卜素的含量

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