News----Chinese Academy of Sciences ,South China Botanical Garden

2011-10-21

Allotetraploid Origin and Divergence in Eleusine

Hybridization followed by allopolyploidization is a principal speciation mode for Eleusine(Poaceae)in East Africa and Americas. LIU Qing of South China Botanical Garden and her cooperators of Smithsonian Institution employ two LCN markers and plastid markers to support independent allotetraploid origins for E. 200922).The paper has been publishe... Hybridization followed by allopolyploidization is a principal speciation mode for Eleusine (Poaceae) in East Africa and Americas. Recently, Dr. LIU Qing of South China Botanical Garden and her cooperators of Smithsonian Institution employed two LCN markers and plastid markers to support independent allotetraploid origins for E. kigeziensis and t...

2011-10-18

Increased Phosphorus Availability Mitigates the Inhibition of Nitrogen Deposition on CH4 Uptake in an Old-growth Tropical Forest

More and more studies indicate that,nitrogen deposition inhibites forest soil methane(CH4)uptake. MO Jiangming from ecosystem management group of South China Botanical Garden(SCBG).Recently,Dr. This work was guided by Prof. MO Jiangming from ecosystem management group of SCBG and Prof. This finding firstly revealed the effects of N/P interaction... More and more studies indicate that, nitrogen deposition inhibites forest soil methane (CH4) uptake. Consequently, nitrogen (N) deposition increases atmospheric CH4 concentration due to weaken the function of forest soil as CH4 sink. This standpoint has been supported by Dr. ZHANG Wei (Zhang et al., Journal of Geophysical Research-Atmospheres, 2...

2011-10-14

New Advance on Accumulation of Carbon from Old-growth Forest Soils in SCBG

LIU Lei and ZHANG Tao from South China Botanical Garden investigated the responses of soil microbial biomass and community composition to phosphorus(P)addition in three tropical forests. They found that addition of P significantly altered the microbial community composition and increased soil respiration in old-growth forest,which was nitrogen(N... Dr. LIU Lei and ZHANG Tao from South China Botanical Garden investigated the responses of soil microbial biomass and community composition to phosphorus (P) addition in three tropical forests. They found that addition of P significantly altered the microbial community composition and increased soil respiration in old-growth forest, which was nit...

2011-09-02

Bioactive Constituents from Litchi Seeds

The seeds of Litchi chinensis Sonn. (Sapindaceae)have been used as a traditional Chinese medicine recorded in the Pharmacopoeia of the People’s Republic of China. Litchi seeds possess pharmacological effects of blood glucose reduction,blood lipid regulation,antitumor,and so on,while their bioactive constituents are still poorly understood Under... The seeds of Litchi chinensis Sonn. (Sapindaceae) have been used as a traditional Chinese medicine recorded in the Pharmacopoeia of the People’s Republic of China. Litchi seeds possess pharmacological effects of blood glucose reduction, blood lipid regulation, antitumor, and so on, while their bioactive constituents are still poorly understood....