搜索结果: 16-30 共查到“知识库 植物化学”相关记录408条 . 查询时间(6.713 秒)
The intertwined population biology of two Amazonian myrmecophytes and their symbiotic ants
ant–plant interactions Cordia nodosa demography
2015/12/10
A major question in ecology is: how do mutualisms between species affect
population dynamics? For four years, we monitored populations of two Amazonian
myrmecophytes, Cordia nodosa and Duroia hirsut...
红树植物对根际微生物群落产生影响，应与其根区微域中的溶解性有机物（ｄｉｓｓｏｌｖｅｄ ｏｒｇａｎｉｃ ｍａｔｔｅｒ，简称 ＤＯＭ）密切相关．采用总有机碳
（ＴＯＣ）分析仪和三维荧光分析法对 ５ 种主要红树植物建群种的 ＤＯＭ 浓度和组分进行原位采样与测定．根际土和非根际土孔隙水 ＤＯＣ 的总平
均值分别为 ２０７．８７ ｍｇ·Ｌ
－１
、１４４．５１ ｍｇ·Ｌ
－１
．从三维荧光光谱图...
Influence of Mucilage Viscosity On The Globule Structure And Stability Of Certain Starch Emulsions
Globule structure Mucilage viscosity Stability Starch emulsions
2015/7/31
A study was carried out to determine the influence of mucilage viscosity on the globule structure (i.e. size and number) of certain starch emulsions. The starches investigated were cassava, potato and...
Nitrogen degradability and intestinal digestibility of rumen undegraded protein in rapeseed, rapeseed meal and extracted rapeseed meal
rapeseed rapeseed meal extracted rapeseed meal ruminant protein amino acids degradability intestinal digestibility
2015/6/4
In this study, nutritive values of rapeseed (R), rapeseed meal-expeller A (RM-A), rapeseed meal-expeller B (RM-B) and extracted rapeseed meal (ERM) were compared. The trials were performed using the i...
A novel Medicago truncatula HD-Zip gene, MtHB2, is involved in abiotic stress responses
MtHB2 Abiotic stress Medicago truncatula Arabidopsis thaliana Pro Solublesugars Oxidative damage
2015/2/5
The HD-Zip proteins are important transcription factors participating in numerous physiological processes in plants. In this study, we identified a homeobox-leucine zipper gene from Medicago truncatul...
Stimulation of root acid phosphatase by phosphorus deficiency is regulated by ethylene in Medicago falcata
Phosphorus deficiency Ethylene Medicago falcata Acid phosphatase activity Phosphate transporters Organic phosphorus
2015/2/5
Plants have developed numerous strategies to cope with phosphorus (P) deficiency resulting from low availability in soils. Evolution of ethylene and up-regulation of root secreted acid phosphatase act...
Aluminum-Induced Ethylene Production is Associated with Inhibition of Root Elongation in Lotus japonicus L.
Aluminum toxicity Ethylene production Lotus japonicus Medicago truncatula Root elongation
2015/2/5
Inhibition of root elongation by toxic aluminum (Al3+) occurs rapidly and is one of the most distinct and earliest symptoms of Al toxicity. To elucidate mechanism underlying Al3+-induced inhibition of...
Inhibition of nitric oxide synthase (NOS) underlies aluminum-induced inhibition of root elongation in Hibiscus moscheutos
aluminum (Al) toxicityHibiscus moscheutosnitric oxide (NO)nitric oxide synthase (NOS)root elongation
2015/2/5
Aluminum (Al) is toxic to plants when solubilized into Al3+ in acidic soils, and becomes a major factor limiting plant growth. However, the primary cause for Al toxicity remains unknown.Nitric oxide (...
RNDr. Zdenko Polák, CSc. – 70 years – Biographical Notice
Plant virology plant pathology experimental botany
2015/1/28
RNDr. Zdenko Polák, CSc., plant virologist, senior research scientist of the Research Institute of Crop Production inPrague-Ruzynì, former head of the Department of Plant Pathology of the Institute of...
REMOTE SENSING OF WATER COLOR: MODEL SENSITIVITY ANALYSIS AND ESTIMATION OF PHYTOPLANKTON SIZE FRACTIONS
Sensitivity analysis Phytoplankton size
2015/1/16
Phytoplankton size classes (pico-plankton, nano-plankton, and micro-plankton) provide information about pelagic ocean ecosystem structure, and their spatiotemporal variation is crucial in understandin...
A Comparison of Environmental Substrate Gradients and Calcium Selectivity in Plant Species of Calcareous Fens in Massachusetts
Calcareous fen calcium plant communities Parnassia glauca tissue analysis wetland chemistry
2014/11/17
The distribution and occurrence of plant species within a given region provides insight into the many environmental properties of that region. Although much research has been conducted on plant commun...
Long-term vegetation changes in a temperate forest impacted by climate change
Alaska biodiversity Callitropsis nootkatensis
2015/11/13
Pervasive forest mortality is expected to increase in future decades as a result of increasing
temperatures. Climate-induced forest dieback can have consequences on ecosystem services, potentially
m...
Three-liquid-phase extraction and separation of capsanthin and capsaicin from Capsicum annum L.
partition behaviour red pepper recovery three-liquid-phase system (TLPS)
2014/3/28
The extraction of capsanthin and capsaicin from red pepper (Capsicum annum L.) was studied using a three-liquid-phase system (TLPS) of acetone/K2HPO4/n-hexane. When the system consisted of 22% (w/w) a...
Interactive Effects of Elevated CO2 and Salinity on Three Common Grass Species
elevated CO2 salinity grass species c3 and c4 photosynthesis germination biomass
2015/5/22
Carbon dioxide (CO2) level in the atmosphere has increased steadily since Pre-Industrial times. The need for a better understanding of the effects of elevated CO2 on plant physiology and growth is cle...