当前位置:首页>农业>JIPB | 华中农业大学油菜团队联合崖州湾国家实验室发现新型植物生长调节物质,助力多种作物增产

JIPB | 华中农业大学油菜团队联合崖州湾国家实验室发现新型植物生长调节物质,助力多种作物增产

  • 2026-05-09 02:52:05
JIPB | 华中农业大学油菜团队联合崖州湾国家实验室发现新型植物生长调节物质,助力多种作物增产

作物产量主要取决于收获器官的大小, 揭示其调控机制是提升作物产量的关键。近日华中农业大学油菜团队联合崖州湾国家实验室在JIPB发表了题为“12-hydroxylauric acid, a novel growth regulator, promotes plant organ development”的研究论文 (https://doi.org/10.1111/jipb.70243)该研究首次揭示12-羟基月桂酸 (12-HOLA) 作为BnaA09.CYP78A9的催化产物是一种潜在的新型植物内源生长调节物可显著促进油菜、大豆、番茄和黄瓜等多种作物的果实和种子发育展现出广阔的应用前景。

团队前期研究表明CACTA-like转座子插入可显著上调BnaA09.CYP78A9基因表达促进油菜角果伸长和籽粒增大。该研究进一步揭示BnaA09.CYP78A9可将月桂酸转化为12-羟基月桂酸在长角果油菜品种中12-HOLA的积累量是短角果品种的5倍以上表明12-HOLA与器官增大密切相关 (图1)。

BnaA09.CYP78A9酶活鉴定及12-羟基月桂酸含量检测

基于这一发现研究团队假设并验证了12-HOLA的生物学功能。在2022至2025年间团队在湖北武汉、荆州以及海南三亚等多个试验点对油菜、大豆、黄瓜和番茄开展了系统的田间喷施试验。结果显示喷施60 ppm 12-HOLA后: 油菜产量在不同品种和地点增产7.91%–30.82%; 大豆增产30.14%; 黄瓜增产24.37%果实鲜重增加20.64%; 番茄果实鲜重增加11.92%。以上结果表明12-羟基月桂酸具有广谱促进生长的活性在多种作物的增产增效中具有重要应用潜力 (图2)。

图2 12-HOLA田间喷施处理促进多种作物产量提高

为了探究其分子机制研究团队通过转录组学和生理生化分析发现12-HOLA能迅速激活植物体内的生长素响应网络上调YUCPINEXPA等生长素合成、运输及信号传导相关基因的表达促进细胞伸长。同时12-HOLA还显著增强了油菜角果的碳代谢活性为种子发育提供了更充足的物质和能量 (图3)。

图3 12-HOLA促进油菜角果伸长的机制

综上该研究不仅揭示了BnaA09.CYP78A9催化合成12-HOLA调控器官发育的分子机制还首次提出12-HOLA作为一种天然、绿色植物生长调节物质的应用前景。同时为作物高产育种和精准调控提供了新策略也为开发新型植物生长调节剂奠定了重要基础。

崖州湾国家实验室博士后彭妍和华中农业大学/崖州湾国家实验室博士研究生张蒙玲为共同第一作者华中农业大学/崖州湾国家实验室郭亮教授、华中农业大学刘克德教授为共同通讯作者。该研究得到了国家自然科学基金、国家杰出青年科学基金、武汉知识创新工程-基础研究、崖州湾国家实验室基础研究项目和中央高校基础研究基金的资助。

文章引用:
Peng, Y., Zhang, M., Tan, Z., Lou, H., Yang, B., Zhang, Y., Zhao, Z., Fan, R., Fan, H., Chen, J., et al. (2026). 12-hydroxylauric acid, a novel growth regulator, promotes plant organ development. J. Integr. Plant Biol.https://doi.org/10.1111/jipb.70243
域合集:

#Abiotic Stress Responses# 

#Cell and Developmental Biology#

#Functional Omics and Systems Biology# 

#Global Change Biology#

#Gene Editing#

#Molecular Physiology#   

#Metabolism and Biochemistry#

#Molecular Ecology and Evolution#

#Plant Biotic Interactions#   

#Photosynthesis and Crop Physiology#  

#Plant Reproductive Biology#   

#Plant Phylogenomics# 

#Plant Epigenetics#

#Synthetic Biology# 

物种合集:

#水稻##小麦##大豆##玉米##拟南芥##蔬菜##园艺植物#

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  1. CONNECT:[ UseTime:0.000608s ] mysql:host=127.0.0.1;port=3306;dbname=h_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000746s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000295s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000279s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000531s ]
  6. SELECT * FROM `set` [ RunTime:0.000206s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000572s ]
  8. SELECT * FROM `article` WHERE `id` = 502500 LIMIT 1 [ RunTime:0.001117s ]
  9. UPDATE `article` SET `lasttime` = 1778537341 WHERE `id` = 502500 [ RunTime:0.010837s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000391s ]
  11. SELECT * FROM `article` WHERE `id` < 502500 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000613s ]
  12. SELECT * FROM `article` WHERE `id` > 502500 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000393s ]
  13. SELECT * FROM `article` WHERE `id` < 502500 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001033s ]
  14. SELECT * FROM `article` WHERE `id` < 502500 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000735s ]
  15. SELECT * FROM `article` WHERE `id` < 502500 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003605s ]
0.094544s