As one of the most populous country in the world, China's patients are also one of the largest in the world. China has emerged as the world’s second largest economy after three decades of market transition (1), which has the largest number of ageing population and the aging population grows fastest in the world (2). Along with the social development, the human's physical life and spiritual life...

Developing seeds are net importers of organic and inorganic nutrients. Nutrients enter seeds through the maternal vascular system at relatively high concentrations in the phloem. They exit importing sieve elements via interconnecting plasmodesmata and, during subsequent symplasmic passage, are sequestered into labile storage pools (vacuoles; starch). Transporters function to retrieve nutrients ...