نتایج جستجو برای: nitrogen deficiency

تعداد نتایج: 254005  

Journal: :The Journal of clinical investigation 1984
P Price J A Wass J E Griffin M Leshin M O Savage D M Large D E Bu'Lock D C Anderson J D Wilson G M Besser

We describe the clinical and biochemical features of six men with male pseudohermaphroditism due to androgen resistance. Each of the subjects had male-gender behavior but incomplete virilization. The underlying defects in androgen metabolism were defined by studies of the 5 alpha-reductase enzyme and the androgen receptor in fibroblasts cultured from biopsies of genital skin. Four of the six ha...

Journal: :بوم شناسی کشاورزی 0
سید محمد سیدی پرویز رضوانی مقدم

more nitrogen use efficiency in crops is important for maintaining and developing sustainable agriculture. in order to study the effect of different levels of mushroom compost and different resource of nitrogen on yield, yield attributes and nitrogen use efficiency of wheat (triticum aestivum l.), an experiment was conducted at faculty of agriculture, ferdowsi university of mashhad, iran, durin...

Journal: :Molecular Horticulture 2023

Abstract Although it is well established that nitrogen (N) deficiency induces leaf senescence, the molecular mechanism of N deficiency-induced senescence remains largely unknown. Here, we show an abscisic acid (ABA)-responsive NAC transcription factor (TF) involved in senescence. The overexpression MdNAC4 led to increased ABA levels apple calli by directly activating biosynthesis gene MdNCED2 ....

2015
Yangjun Zhang Lubin Tan Zuofeng Zhu Lixing Yuan Daoxin Xie Chuanqing Sun

Nitrogen (N), the most important mineral nutrient for plants, is critical to agricultural production systems. N deficiency severely affects rice growth and decreases rice yields. However, excessive use of N fertilizer has caused severe pollution to agricultural and ecological environments. The necessity of breeding of crops that require lower input of N fertilizer has been recognized. Here we i...

2013
P. Price J. A. H. Wass J. E. Griffin M. Leshin D. M. Large D. C. Anderson J. D. Wilson G. M. Besser

We describe the clinical and biochemical features of six men with male pseudohermaphroditism due to androgen resistance. Each of the subjects had male-gender behavior but incomplete virilization. The underlying defects in androgen metabolism were defined by studies of the 5a-reductase enzyme and the androgen receptor in fibroblasts cultured from biopsies of genital skin. Four of the six have 5a...

Claver Ngaboyisonga, Duncan Kirubi Kiarie Njoroge Sam. M. Githiri

Quality Protein Maize (QPM) has about twice the amount of lysine and tryptophan of normal maize and hence represents an important tool of correcting its deficiency in protein quality. However, the effects of low nitrogen and drought on genetic parameters such as gene action and combining abilities of protein quantity and quality of QPM are not known. To study how these genetic parameters are af...

2017
Xiaohuan Mu Qinwu Chen Fanjun Chen Lixing Yuan Guohua Mi

Nitrogen is a major limiting factor for crop productivity. The relationship between photosynthesis and nitrogen nutrition has been widely studied. However, the molecular response of leaf photosynthesis to low nitrogen supply in crops is less clear. In this study, RNA sequencing technology (RNA-Seq) was used to investigate the gene expressions related to photosynthesis in maize in response to lo...

2016
Nana Su Qi Wu Jin Cui

Effects of nitrogen (N) deficiency and sucrose (Suc) addition on regulation of anthocyanin biosynthesis and their relationship were investigated in this study. Radish sprouts subjected to N deficiency had 50% higher anthocyanin accumulation than when grown in Hoagland solution (a nutrient medium with all macronutrients). The contents of endogenous soluble sugars (Suc, fructose, and glucose) in ...

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