Lishui Academy of Forestry Science

Lishui, China

Lishui Academy of Forestry Science

Lishui, China

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Ge Y.,Beijing Forestry University | Ge Y.,Lishui Academy of Forestry science | He X.,Lishui Academy of Forestry science | Wang J.,Lishui Academy of Forestry science | And 3 more authors.
Acta Physiologiae Plantarum | Year: 2014

Phoebe bournei commonly called nanmu is an important and endemic wood species in China, and its planting, nursing, and preserving are often affected by drought stress. Two-year-old P. bournei seedlings were subjected to water stress and recovery treatment to study their physiological and biochemical responses. Physiological and biochemical indices did not change when seedlings were subjected to mild water stress (<15 days of water withholding). As drought stress intensified (>20 days of water withholding), malondialdehyde and electrolyte leakage increased, and chlorophyll and soluble protein decreased, indicating an increased oxidative stress induced by water deficit. Enhanced activities of superoxide dismutase (SOD) and peroxidase (POX), accumulation of free proline and total soluble sugar contribute to plant protection against the oxidative stress. However, SOD and POX decreased when seedlings were subjected to an extended drought. After 5 days of recovery, physiological and biochemical indices were not restored to the control level values except for leaf relative water content when the seedlings were subjected to more than 20 days water stress. These results demonstrate that P. bournei could enhance their ability to mitigate water stress effects by up-regulating antioxidant system and osmotic adjustment, but these two protective mechanisms were limited when seedlings were subjected to moderate and severe water stress. The threshold of water deficit to P. bournei seedlings is 15-20 days, and permanent damage will be induced if water status is not improved before this threshold. The results will provide some theoretical and practical guidance for nanmu afforestation and production. © 2014 Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków.


Ge Y.J.,Beijing Forestry University | Ge Y.J.,Lishui Academy of Forestry science | Liu Y.J.,Lishui Academy of Forestry science | Shen A.H.,Zhejiang Academy of Forestry science | Lin X.C.,Zhejiang Agriculture And forestry University
Genetics and Molecular Research | Year: 2015

Fengshui forests (sacred groves) are important in traditional Chinese culture and home to many endangered species. These forests may provide protection for some endangered plant species outside the nature reserves, but little is known about their role in genetic conservation. Using inter-simple sequence repeat (ISSR) markers, we compared the genetic diversity of 6 populations of Phoebe bournei (Hemsl.) Yang, a commercially important woody species, which is under second-class national protection and endemic to China. Samples were collected from the nature reserves and Fengshui forests in southern China. Herein, we show that Fengshui forest populations are capable of maintaining some level of genetic diversity. For nature reserve populations, the average NA and NE were 1.58 and 1.39, respectively; and for Fengshui forests, they were 1.39 and 1.12, respectively. For nature reserve populations, Nei’s gene diversity (H) and Shannon’s index (I) were 0.32 and 0.11, respectively; and for Fengshui forests, they were 0.22 and 0.07, respectively. We discuss the reasons for the genetic differences between populations of the Fengshui forests and nature reserves and propose conservation strategies for the Fengshui forest. © FUNPEC-RP.


PubMed | Zhejiang Agriculture And forestry University, Beijing Forestry University, Zhejiang Academy of Forestry science and Lishui Academy of Forestry science
Type: Journal Article | Journal: Genetics and molecular research : GMR | Year: 2015

Fengshui forests (sacred groves) are important in traditional Chinese culture and home to many endangered species. These forests may provide protection for some endangered plant species outside the nature reserves, but little is known about their role in genetic conservation. Using inter-simple sequence repeat (ISSR) markers, we compared the genetic diversity of 6 populations of Phoebe bournei (Hemsl.) Yang, a commercially important woody species, which is under second-class national protection and endemic to China. Samples were collected from the nature reserves and Fengshui forests in southern China. Herein, we show that Fengshui forest populations are capable of maintaining some level of genetic diversity. For nature reserve populations, the average NA and NE were 1.58 and 1.39, respectively; and for Fengshui forests, they were 1.39 and 1.12, respectively. For nature reserve populations, Neis gene diversity (H) and Shannons index (I) were 0.32 and 0.11, respectively; and for Fengshui forests, they were 0.22 and 0.07, respectively. We discuss the reasons for the genetic differences between populations of the Fengshui forests and nature reserves and propose conservation strategies for the Fengshui forest.


Liu C.,Huazhong Agricultural University | Yan F.,Huazhong Agricultural University | Yan F.,Lishui Academy of Forestry Science | Gao H.,Huazhong Agricultural University | And 5 more authors.
Journal of the Science of Food and Agriculture | Year: 2015

BACKGROUND: Terpenoids are major components of carotenoids, limonoids and aromas in citrus fruits, resulting in fruit coloration, bitterness and aroma. In this study the carotenoid, limonoid and volatile profiles of red-flesh Chuhong pummelo (CH) and pale green-flesh Feicui pummelo (FC) were investigated by HPLC and GC/MS. RESULTS: Large differences were found in constituents of carotenoids and limonoids in juice sacs and flavedo and of aromas in flavedo of the two pummelos. For carotenoids in juice sacs, CH contained 57 times the amount in FC, mainly all-trans-lycopene and phytoene, whereas in flavedo it contained only 25% of that in FC, the latter showing a high proportion of β-carotene and other chloroplastic carotenoids. In comparison with FC, limonin and nomilin aglycone production was boosted in juice sacs of CH while being almost absent in flavedo. For volatiles in flavedo, the total amount was significantly higher in CH. PCA suggested that germacrene-type sesquiterpenoids, etc. were principal in distinguishing volatile profiles of the two pummelos. CONCLUSION: The data showed a different tissue-biased pattern of carotenoid and limonoid aglycone synthesis in pummelos with different flesh color, and the possible independently regulated synthesis of those metabolites in different fruit tissues. Furthermore, decreased carotenoid and limonoid aglycone production accompanied by increased accumulation of volatile terpenoids in flavedo of red-flesh CH was identified, indicating that a total capacity or a balance of production of various terpenoids might exist in pummelo fruit tissues. It was also suggested that substrate concentration is not the key factor affecting product concentrations during the synthesis of monoterpene derivatives. © 2014 Society of Chemical Industry.


Xu J.,Huazhong Agricultural University | Ma L.,Huazhong Agricultural University | Jiang D.,Chinese Academy of Agricultural Sciences | Zhu S.,Chinese Academy of Agricultural Sciences | And 5 more authors.
Food Chemistry | Year: 2015

Due to the furanocoumarin compounds in the fruit, the production and consumption of grapefruit have been affected in the past decades since the 'grapefruit juice effect' was declared. To provide elite germplasm and obtain knowledge for future citrus breeding programs, the contents of 4 furanocoumarin monomers (FCMs) in the juice sacs from 73 citrus germplasms were evaluated using ultra-performance liquid chromatography. 6′,7′-Dihydroxybergamottin and bergamottin were dominant in all the tested grapefruits, while there were some pomelos with dominant epoxybergamottin, and some with dominant 6′,7′-dihydroxybergamottin and bergamottin. The contents of FCMs were low or below detection in sweet oranges, mandarins, lemons and trifoliate oranges. The results also show that the dominant patterns of FCMs are genotype-related, and crossing and selection are effective approaches to alter FCM profiles in citrus breeding. Furthermore, the contribution of pomelo as a parent to grapefruit regarding their FCM profiles was discussed. © 2015 Published by Elsevier Ltd.

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