The characteristic sour-sweet balance of citrus fruits is largely defined by citric acid accumulation in the vacuoles of juice sacs. Previous studies identified several proteins — such as CsPH8, CsAN1 and CsPH4 — that control acid storage and transport. However, little was known about the CsAN11 protein. Many citrus cultivars exhibit wide variations in acidity, even among closely related varieties, …
Gene Plays Role in Boosting Citrus Cold Tolerance
A pioneering study has uncovered the role of a key gene, PtrPAT1, in boosting cold tolerance in citrus plants by regulating the accumulation of glycine betaine (GB). This breakthrough deepens understanding of how plants cope with cold stress and opens the door to developing cold-resistant citrus varieties. Citrus plants, traditionally cultivated in tropical and subtropical climates, are highly vulnerable to …
New Orange Variety Introduced in China
Li Ningxian, a fruit grower in China’s Jiangxi province, discovered in 2004 that some of his Nanfeng oranges matured about six weeks earlier than usual. Although he attempted to propagate these early-maturing branches, the variety proved unstable with sugar content. Ningxian sought help from YI Hualin, a professor at Huazhong Agricultural University College of Horticulture & Forestry Sciences, who specializes …












