نتایج جستجو برای: Mineral nutrient

تعداد نتایج: 132470  

2017
Deborah Price Matt Hersom Joel Yelich Max Irsik Owen Rae

An animal’s requirements for TM begin while it is in utero, as TM are essential for proper embryonic development and survival (Ashworth and Antipatis, 2001; Hostetler et al., 2003). Moreover, TM deficiencies of the developing fetus carry over into the postnatal period with lesser TM storage in tissues of the neonates, further limiting neonatal growth, development, performance and immunity. Duri...

2014
Jasmin Seven Andrea Polle

Mycorrhizas are the chief organ for plant mineral nutrient acquisition. In temperate, mixed forests, ash roots (Fraxinus excelsior) are colonized by arbuscular mycorrhizal fungi (AM) and beech roots (Fagus sylvatica) by ectomycorrhizal fungi (EcM). Knowledge on the functions of different mycorrhizal species that coexist in the same environment is scarce. The concentrations of nutrient elements ...

2016
So Young Park Yun Jin Kim Sang Yeoup Lee Jeong Gyu Lee Hye Rim Hwang Dong Wook Jeong Young Hye Cho Eun Jung Choi Yu Hyeon Yi Young Jin Tak A Ra Jo Seung Hoon Lee Jeong Suk Jeon Bo Wha Lee

BACKGROUND Vitamin-mineral supplements are the most popular dietary supplements in Korea. However, few studies have assessed the relationship between vitamin-mineral supplementation and associated factors among the Korean elderly. The purpose of this study was to assess the use of vitamin-mineral supplements among elderly in Korea as well as its association with sociodemographic factors, health...

Journal: :Journal of experimental botany 1996
H Marschner E A Kirkby I Cakmak

Mineral nutrients taken up by the roots are, as a rule, transported in the xylem to the shoot, and photoassimilates transported in the phloem to the roots. According to the Thornley model of photosynthate partitioning, nutrient deficiencies should favour photosynthate partitioning to the roots. Examples are cited to show that this preferential partitioning is dependent on phloem mobility and he...

2016
Min Wang Lei Ding Limin Gao Yingrui Li Qirong Shen Shiwei Guo

Aquaporins, major intrinsic proteins (MIPs) present in the plasma and intracellular membranes, facilitate the transport of small neutral molecules across cell membranes in higher plants. Recently, progress has been made in understanding the mechanisms of aquaporin subcellular localization, transport selectivity, and gating properties. Although the role of aquaporins in maintaining the plant wat...

2009
Se Ra Hong Seung Min Lee Na Ri Lim Hwan Wook Chung Hong Seok Ahn

This study was performed to investigate the association between hair mineral levels and nutrient intakes, age, and BMI in female adults who visited a woman's clinic located in Seoul. Dietary intakes were assessed by food frequency questionnaire and mineral levels were measured in collected hairs, and the relationship between these was examined. The average daily nutrient intakes of subjects wer...

2013
Julia Kehr

Plants frequently have to cope with environments with sub-optimal mineral nutrient availability. Therefore they need to constantly sense changes of ion concentrations in their environment. Nutrient availabilities and needs have to be tightly coordinated between organs to ensure a balance between uptake and demand for metabolism, growth, reproduction, and defense reactions. To this end informati...

Journal: :Tree physiology 1997
E George B Seith C Schaeffer H Marschner

The spatial distribution of plant-available mineral nutrients in forest soils is often highly heterogeneous. To test the hypothesis that local nutrient enrichment of soil leads to increased root proliferation in the nutrient-rich soil zone, we studied the effects of nutrient enrichment on the growth and nutrient concentrations of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), Scots pine (P...

2009
M. E. SUMNER

The field of soil fertility deals mainly with the mineral nutrition of plants in which both the supplying power of the soil and the ability of the plant to absorb nutrients, are of importance. The soil may be considered as. the rooting medium which provides water and mineral nutrients necessary for plant growth. Ionic equilibria play a fundamental role in fertility relationships because they go...

2013
Lubomír Adamec

CARNIVOROUS PLANTS AS ECOLOGICAL GROUP Carnivorous plants (CPs) usually grow in nutrient-poor, wet or aquatic environments and possess foliar traps which capture animal prey (Juniper et al., 1989). There are about 600 terrestrial and 50 aquatic or amphibious species of CPs which supplement the conventional mineral nutrient uptake by roots or shoots from their environment by the absorption of nu...

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