高氮条件下香榧假种皮开裂的生理机制初探
Preliminary study on cracking mechanism of Torreya grandis aril under high nitrogen condition
[目的]香榧是我国南方特有的珍稀坚果,具有较高的营养价值和经济效益。香榧假种皮开裂是种子成熟采摘的重要标志,与种子品质密切相关。生产上,常因氮肥施用过多,导致香榧假种皮开裂率降低,严重影响坚果品质。然而,高氮条件下香榧假种皮开裂的生理机制尚不清楚。[方法]通过测定种实发育时期内各处理香榧假种皮开裂率、硬度、解剖结构等生理指标的变化,利用转录组和RT-qPCR验证筛选出高氮下参与假种皮开裂过程的关键结构基因和转录因子,并通过双荧光素酶和酵母单杂试验…查看全部>>
[Objective]Torreya grandis(T.grandis)is a rare nut peculiar to southern China,with high nutritional value and economic benefits.Aril cracking of T.grandis is an important sign of seed ripening and picking,and is closely related to seed quality.In practice,the excessive application of nitrogen fertilizers often leads to a decrease in the cracking rate of arils,which seriously affects the quality of nuts.However,the physiological mechanisms of seed abscission …查看全部>>
胡渊渊;吴翠萍;吴家胜;
Torreya grandis Cracking rate Cell wall component Cell wall modifcation genes
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