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

2018-08-27

Formation pattern in five types of pollen tetrad in Pseuduvaria trimera (Annonaceae)

Pollen is a male germ cell carrying genetic information , and its morphology has strong genetic conservatism .The nucleus location of the microspores together with cytokinesis determine the number and the spatial arrangement of callose plates , and further have an effect on the tetrad types .Our observations of the development of tetrads provide... Pollen is a male germ cell carrying genetic information, and its morphology has strong genetic conservatism. In angiosperms, in addition to the single pollen, there aredyads, tetrads, octads and polyads. In entomophilous plants, polyads ensures that pollinators can carry a larger amount of pollen at one time, increasing the fertilization rate wi...

2018-08-24

Mid-term Assessment Meeting on the Project “Development of New Technologies for Post-harvest Quality and Quality Control of Large-scale and Characteristic Fruits and Vegetables in South China”

South China Botanical Garden .Chinese Academy of Sciences organized the mid-term assessment meeting of the project “ Development of New Technologies for Post-harvest Quality and Quality Control of Large-scale and Characteristic Fruits and Vegetables in South China ( Project Number : 2016YFD0400904 ) ” supported by the National Key R&D Program ...
　　South China Botanical Garden, Chinese Academy of Sciences organized the mid-term assessment meeting of the project “Development of New Technologies for Post-harvest Quality and Quality Control of Large-scale and Characteristic Fruits and Vegetables in South China (Project Number: 2016YFD0400904)” supported by the National Key R&D Program ...

2018-08-17

A New Hypothesis On Plant Acclimation Developed

Anthropogenic nitrogen ( N ) deposition has accelerated terrestrial N cycling at regional and global scales , causing nutrient imbalance in many natural and semi-natural ecosystems .Dr . Xiankai Lu and his colleagues conducted an experiment employing a long-term N addition to examine ecosystem responses and plant acclimation to added N in an N-r...
　　Anthropogenic nitrogen (N) deposition has accelerated terrestrial N cycling at regional and global scales, causing nutrient imbalance in many natural and semi-natural ecosystems. How added N affects ecosystems where N is already abundant, and how plants acclimate to chronic N deposition in such circumstances, remains poorly understood. Dr. ...

2018-08-17

Research Progress on Community Ecology

Disentangling ecological processes that influence community assembly and species diversity across spatial scales remains a major goal of community ecology .Figure . The variations of functional trait diversity partitioned into purely abiotic , spatially structured abiotic , purely spatial and undetermined variables across spatial scales .
　　Disentangling ecological processes that influence community assembly and species diversity across spatial scales remains a major goal of community ecology. Community assembly processes influence spatial patterns of species diversity through their interactions with plant functional traits. Hence, quantifying spatial patterns of functional tr...

2018-05-31

SCBG Reported That Gibberellins Play an Essential Role in Late Embryogenesis of Arabidopsis

The plant hormone gibberellin ( GA ) plays key roles in almost all aspects of plant development , but its detailed function and underlying regulatory mechanism in embryo development are not yet clearly defined .A research team led by Prof . Hou Xingliang from South China Botanical Garden ( SCBG ) of the Chinese Academy of Sciences discovered an ...
　　The plant hormone gibberellin (GA) plays key roles in almost all aspects of plant development, but its detailed function and underlying regulatory mechanism in embryo development are not yet clearly defined.
　　Recently, a research team led by Prof. Hou Xingliang from South China Botanical Garden (SCBG) of the Chinese Academy of Sciences d...

2018-05-08

What explains high plant richness in East Asia? Time and diversification in the tribe Lysimachieae (Primulaceae)

What causes the disparity in biodiversity among regions is a fundamental question in biogeography , ecology , and evolutionary biology .We find that neither time nor diversification rates alone explain richness patterns among regions in Lysimachieae . Instead , a new index that combines both factors explains global richness patterns in the group...
　　What causes the disparity in biodiversity among regions is a fundamental question in biogeography, ecology, and evolutionary biology. Evolutionary and biogeographic processes (speciation, extinction, dispersal) directly determine species richness patterns, and can be studied using integrative phylogenetic approaches. However, the strikingly...

2018-05-04

A Series of Researches on The Response of Tree Radial Growth to Global Changes

Tree growth of boreal forest plays an important role on global carbon ( C ) cycle , while tree growth in the western Canadian boreal mixed forests has been predicted to be negatively affected by regional drought .Results indicated that tree growth of two species were both primarily affected by competition or tree size , while climatic indices sh... Tree growth of boreal forest plays an important role on global carbon (C) cycle, while tree growth in the western Canadian boreal mixed forests has been predicted to be negatively affected by regional drought. Individual tree growth can be controlled by many factors, such as competition, climate, tree size and age. However, information about con...

2018-04-28

A new endemic genus of China bryophytes, Gaolejeunea

Discovered in 1974 by Prof . Chien GAO , an acknowledged authority on Chinese bryology , at Hongqilinchang ( now Shiwandashan National Forest Park ) , Shangsi , Guangxi , Cheilolejeunea gaoi R . L . Zhu .However , the presence of Allorgella-type denticulations that formed by two adjacent cells on leaf and underleaf margins , small ovate leaf lob... Discovered in 1974 by Prof. Chien GAO, an acknowledged authority on Chinese bryology, at Hongqilinchang (now Shiwandashan National Forest Park), Shangsi, Guangxi, Cheilolejeunea gaoi R.L.Zhu, M.L.So et Grolle was a peculiar member of the Chinese Lejeuneaceae. It was described as a new species of Cheilolejeunea (Cheilolejeuneinae, Lejeuneeae) in ...