熊友才
1.作物生理生态学;2.农业生态学;3.社会生态学。
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- 姓名:熊友才
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学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
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学科领域:
生态学
- 研究兴趣:1.作物生理生态学;2.农业生态学;3.社会生态学。
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熊友才, You-Cai Xiong a, b, Feng-Min Li a, ∗, Ting Zhang a, Chen Xia a
Environmental and Experimental Botany 59(2007)193-205,-0001,():
-1年11月30日
The objectives of this study were to: (1) characterize the evolutional tendency of the non-hydraulic root-sourced signal (NRS) from wheat wild relatives to its modern hexaploid species, and (2) test whether species sensitivity to the NRS was allied with their drought tolerance profiles. The NRS was judged to begin when there was a significant lowering of stomatal conductance without change in leaf relative water content (RWC). The lethal soil water content (LSWC) was operationally characterized as the soil water content (SWC) at the drying lethal point of wheat plants. The threshold of soil water content (TSWC) at which the NRS was triggered, and the LSWC differed amongst six wheat species. For "MO1" and "MO4" representing 'diploid' species, the TSWC and the LSWC were initiated successively at about 51% FWC (field water capacity) and about 30% FWC, respectively. Conversely, "Plateau 602" and "Longchun 8139-2" (modern hexaploid species) exhibited the TSWC and the LSWC between about 68% FWC and less than 14% FWC, a much wider threshold range (TR). Increasing TSWC was significantly correlated with decreasing LSWC (r=0.9464**). The widened TR from the TSWC to the LSWC was also significantly correlated with longer survival days (SD) and higher maintenance ratio of grain yield (MRGY), respectively (r=0.9411** and 0.8068*, respectively). Meanwhile, those species having higher TSWC had the least reduction ratio of stomatal conductance under the decreasing soil moisture from −0.2 to −1MPa. This suggests that advances in yield performance and drought tolerance would be made evolutionally by targeted selection for an earlier onset of NRS.
Non-hydraulic root-sourced signal (, NRS), , Spring wheat, Lethal soil water content (, LSWC), , Drought tolerance, Evolutionary mechanism, Threshold range
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熊友才, You-Cai Xiong a, c, Geng-Mei Xing b, Feng-Min Li a, Shao-Ming Wang d, Xian-Wei Fan a, Zhi-Xiao Li a, Ya-Fu Wang a, *
Plant Physiology and Biochemistry 44(2006)161-169,-0001,():
-1年11月30日
Interrelationship among abscisic acid (ABA) content, accumulation of free polyamines and biosynthesis of β-N-oxalyl-L-α,β-diaminopropionic acid (ODAP) was studied in grass pea (Lathyrus sativus L.) seedlings under drought stress induced by 10% polyethylene glycol (PEG6000). Increase of ABA content occurred prior to that of ODAP and polyamine contents, and was found significantly positive correlation between ABA content and ODAP content. Addition of exogenous ABA increased ODAP content in leaves. On the other hand, pretreatment with α-difluoromethylarginine (DFMA), a polyamine biosynthesis inhibitor, significantly suppressed the accumulation of free putrescine (Put), free spermidine (Spd) and free spermine (Spm), which in turn inhibited biosynthesis of ODAP in well-watered leaves. Meanwhile, addition of exogenous Put alleviated DFMA-induced inhibition on the biosynthesis of Put and Spd, but did not affect the biosynthesis of Spm and ODAP in well-watered leaves. Same result was also achieved in drought-stressed leaves. Increasing accumulation of ODAP was significantly correlated with increasing Spm content (R=0.7957**) but not with that of Spd and Put. Therefore, it can be argued that ABA stimulated the biosynthesis of ODAP simultaneously with increasing the level of free Spm under drought stress condition.
Grass pea, β-N-oxalyl-L-α,, β-diaminopropionic acid (, ODAP), , polyamines, drought stress,, abscisic acid (, ABA),
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熊友才, YOU-CAI XIONG*, GENG-MEI XING**, CHUN-MEI GONG*, FENG-MIN LI*, SHAO-MING WANG***, ZHI-XIAO LI* AND YA-FU WANG*
Pak. J. Bot., 38 (4): 999-1014, 2006.,-0001,():
-1年11月30日
The effects of exogenous abscissic acid (ABA) application on the antioxidant defenses were investigated in grass pea (Lathyrus sativus L.) seedlings. Four treatment combinations of ABA (1×10-3 nM ABA) and PEG (10% polyethylene glycol, PEG 6000) were designed to evaluate their short-term (48h) effect: (1) Well-watered group (Control group1), (2) PEG treatment, (3) ABA treatment, and (4) PEG+ABA treatment. In addition, 2 other treatments were used to evaluate the long-term (15d) effect of ABA: well-watered group (Control group2) and ABA treatment. Time-course analyses of ABA content, the production of malondialdehyde (MDA) and H2O2, and the activities of superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) and peroxidase (POD) in water-stressed leaves showed that a significant increase in ABA content preceded that of MDA and H2O2 in long term experiment, which was followed by a substantial increase in the activities of four antioxidant enzymes. Under the short-term drought stress, ABA application promoted the activities of antioxidant enzymes, and reduced the accumulation of MDA and H2O2 significantly. On the contrary, long term application of exogenous ABA increase the generation of MDA and H2O2 significantly. It could be argued that during a successive application of exogenous ABA, ABA played a dual role by which the beneficial role in the initial stage shifted to a detrimental one under prolonged treatment in up-regulating protective defense strategies in plants.
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熊友才, S.M. Wanga, b, X.Zhang b, Y. Lia, L.Zhang b, Y.C. Xionga, G.Wang b, *
Journal of Arid Environments 63(2005)203-222,-0001,():
-1年11月30日
The aim of this study was to investigate the spatial distribution patterns of soil seed bank of Stipagrostis pennata (Trin.) de Winter during different seasons in the Gurbantonggut Desert of north-west China.Results indicated that spatial patterns of the soil seed bank of S. pennata were similar to the distribution patterns of its associated standing vegetation, and there was a significant variation in soil seed densities among the different parts of the dunes.The highest soil seed density was found on the top of sampled dunes and in the soil of the underlayers of standing vegetation beds of S. pennata.The number of seeds stored in the soil decreased with distance from established stands of this grass species.Moreover, during secondary seed dispersal, which is air-borne in the windy season, a small proportion of seeds was also trapped by other plant species.Furthermore, the directional density distribution of seeds was strongly associated with the directions of the prevailing threshold wind (X6ms 1), and higher soil seed densities usually occurred on the leeward side of the vegetation stands.Based on these investigations, wind is, probably, the key factor in forming the spatial patterns of S. pennata seed banks in the region.On the other hand, grazing affected the quality and quantity of S. pennata seed storage, as a result of delayed development and the above-ground shoots being damaged by grazing.This occurred in spring to early summer, which is the most suitable growth season for the grass.Nevertheless, grazing had little influence on the spatial distribution patterns of the seed bank over all seasons.Germination trials showed that the percentage of viable soil seeds increased continuously throughout summer and autumn.The results also revealed the clear ecological characteristics influencing the population distribution of S. pennata.
Poaceae, Plant population, Soil seed density, Sand dune, Junger basin
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熊友才, Guoju Xiao a, b, c, Qiang Zhang b, *, Youcai Xiong d, Miaozi Lin e, Jing Wang d
Soil & Tillage Research 93(2007)429-437,-0001,():
-1年11月30日
A field experiment was conducted at the Haiyuan Experimental Station (36º34′N, 105º39′E), in a semiarid region of China, from 2000 to 2003 for rain-fed spring wheat (Triticum aestivum) production to maximize the utilization of low rainfall. This paper reports the two field cultivations of rainwater harvesting with a sowing in the furrow between film-covered ridges (SFFCR), and with a sowing in the holes on film-covered ridges (SHFCR). At the same time, the periods and indices of supplemental irrigation during the whole growth stage of rain-fed spring wheat were also studied. The periods of supplemental irrigation included the three-leaf stage (irrigated once), the elongation stage to flowering stage (irrigated twice), and the flowering stage to filling stage (irrigated once). The indices of supplemental irrigation during the whole growth stage of rain-fed spring wheat must reach over 59 and 40 mm in order to realize the 2250 and 2000kg ha 1 yield, respectively. This research also presented such a concept of efficient water saving supplemental irrigation, which was considered as a new index of water saving irrigation. The experimental result showed that the efficiency of water saving supplemental irrigation of field cultivation with SFFCR was 5.5-5.8%, and with SHFCR was 9.4-9.6%. The efficiency of water saving supplemental irrigation of field cultivation with SHFCR was improved by 40.4% in comparison with SFFCR. Consequently, in this region, the integration of rainwater harvesting and supplemental irrigation can play a crucial role in the improvement of rain-fed spring wheat yields and water use.
Efficiency of water saving supplemental irrigation, Rain-fed spring wheat, Rainwater harvesting, Supplemental irrigation, Semiarid region of China
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熊友才, Sheng-Mao Yang·S. S. Malhi·Jian-Rong Song·You-Cai Xiong·Wei-Yun Yue·Li Li Lu·Jian-Guo Wang·Tian-Wen Guo
Nutr Cycl Agroecosyst (2006) 76: 81-94,-0001,():
-1年11月30日
Application of chemical fertilizers and farmyard manure affects crop productivity and improves nutrient cycling within soil-plant systems, but the magnitude varies with soil-climatic conditions. A long-term (1982-2004) field experiment was conducted to investigate the effects of nitrogen (N), phosphorus (P), and potassium (K) fertilizers and farmyard swine manure (M) on seed and straw yield, protein concentration, and N uptake in the seed and straw of 19-year winter wheat (Triticum aestivum L.) and four-year oilseed (three-year canola, Brassica napus L. in 1987, 2000 and 2003; one-year flax, Linum usitatisimum L. in 1991), accumulation of nitrate-N (NO3-N) in the soil profile (0-210cm), and N balance sheet on balanced application of N, P, and K fertilizers and manure at proper rates is important for protecting soil and groundwater from potential NO3-N pollution and for maintaining high crop productivity in the rainfed region of Northwestern China.
Calcaric cambisols·Farmyard manure·Long-term fertilization·N balance sheet ·Nitrate-N accumu-lation·Nitrogen·Phosphorus·Potassium·Yield·Dryland of China
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熊友才, T.-C. Wanga, Y.-C. Xionga, b, J.-P. Geb, S.-M. Wangc, Y. Lia, D.-X. Yueb, T.M. Wangb, G. Wanga, *
Journal of Arid Environments 72(2008)84-96,-0001,():
-1年11月30日
The recovery of vegetation cover following soil disturbance by the plateau zokor (Myospalax baileyi) was investigated from 2001 to 2004 in a subalpine meadow of the Qinghai-Tibet Plateau. Two adjacent plots were compared: one control community (undisturbed by zokors for over 5 years) and one disturbed community (with new mounds present before enclosure in year 2000). Vegetation on mounds tended to recover over time. Plant diversity, cover, biomass and density reached 88.5%, 87.9%, 73.1%, and 52.7% of the values for the control community, respectively, over the 4-year period when zokors were excluded. The edges around mounds showed a gradual increase in aboveground biomass and vegetation density from 2001 to 2004, which compensated for the lack of plant cover on the center of the mounds. The total number of species in the disturbed community increased from 15 in 2001 to 27 in 2004, and contained three alien species which were not found in the control plot, which contained 30 species. The average species diversity in mound sites (41.8) was generally higher than that of the control plot (1.7). It is probable that plateau zokors are important for maintaining or restoring the disturbance-dependent elements of native plant communities. In addition, zokor disturbance resulted in a significant change in soil particle size, increased soil water content from about 20% to 25% and soil organic carbon content from 108 to 114g/kg (0-20cm soil layer) after 4 years of restoration. The improvement in soil quality might be associated with the rate of vegetation recovery following zokor disturbance. Therefore, through modulation of vegetation recovery, plateau zokors might be said to act as ecosystem engineers in alpine meadows.
China, Disturbance, Edge effect, Soil, Vegetation restoration
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熊友才, Jun-Quan Zhao, Guo-Zhen Du, You-Cai Xiong, Yi-Fu Wen, Monika Bhadauria, and Satendra Kumar Nirala
Arch Pharm Res Vol 30, No 12, 1575-1583, 2007,-0001,():
-1年11月30日
We determined a minimum effective dose of gallic acid (3,4,5-trihydroxy benzoic acid; 50mg/kg, i.p.) and piperine (10mg/kg, p.o.) through their therapeutic potential and further evaluated them individually and in combination against beryllium-induced biochemical alterations and oxidative stress consequences in female albino rats. The administration of beryllium altered blood biochemical variables by significantly depleting hemoglobin, albumin and urea, whereas it enhanced bilirubin and creatinine. The release of serum transaminase, lactate dehydrogenase and/-glutamyl transpeptidase was significantly greater, and was concomitant with a decrease in serum alkaline phosphatase. A significant increase in lipid peroxidation and a decrease in glutathione, superoxide dismutase and catalase in the liver and kidney was an indication of oxidative stress due to beryllium exposure. Individual administration of gallic acid and piperine moderately reversed the altered biochemical variables, whereas the combination of these was found to completely reverse the beryllium-induced biochemical alterations and oxidative stress consequences. We concluded that gallic acid exerts a synergistic effect when administered with piperine and provides a more pronounced therapeutic potential in reducing beryllium-induced hepatorenal dysfunction and oxidative stress consequences.
Beryllium toxicity,, Gallic acid,, 3,, 4,, 5-Trihydroxy benzoic acid,, Piperine,, Biochemical alterations,, Hepatorenal dysfunction,, Oxidative stress,, Combined therapy
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【期刊论文】Ecosystem Health Assessment of the Jinghe River Watershed on the Huangtu Plateau
熊友才, An-Ning Suo, , You-Cai Xiong, Tian-Ming Wang, Dong-Xia Yue, Jian-Ping Ge
EcoHealth 5, 127-136, 2008,-0001,():
-1年11月30日
An improved Costanza model was developed to assess the health of the Jin he River Watershed ecosystem. The watershed is located at the center of the Huangtu Plateau in China and has suffered a severe disturbance in the last few decades. Three indicators including vigor, organization, and resilience were calculated respectively by merging ground-based observations with remotely sensed data on a watershed scale. Health indices of 12 topographic sub-watersheds were calculated using a modified Costanza formula. Health evaluated results indicated that sub-watersheds in the Huangtu mountain region were relatively healthy ecosystems with scores over 0.673. The sub-watersheds in the loess mountain and the loess gully regions, e.g., Jinghe, Heihe, and Honghe regions, scored moderately; their evaluated value ranged from 0.505 to 0.606. The two sub-watersheds in the loess gully region and all sub-watersheds in the loess hilly region scored the lowest, less than 0.50 and were considered unhealthy ecosystems. It can be argued that the loess hilly region and the loess gully regions should be in primary consideration for ecological protection and rehabilitation. This study provided a possible quantitative model for ecological planning and landscape management with respect to topographic conditions in this area.
ecosystem health,, Costanza model,, watershed,, health indices,, Jinghe River Watershed
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