模拟森林凋落物淋洗液中苹果酸/盐浓度范围,研究不同浓度苹果酸/盐对风干暗棕壤中磷有效性的影响及机制,同时采用盆栽试验,在自然暗棕壤中对苹果酸/盐提高磷的有效性进行验证,并探讨苹果酸/盐对落叶松和水曲柳幼苗吸收运输磷素养分的影响。结果表明:苹果酸/盐溶液显著促进A1层和B层风干暗棕壤磷的活化,释放量随浓度增加而增大,但B层释放效应较弱。对A1层和B层风干暗棕壤磷的释放作用苹果酸盐强于同浓度的苹果酸,因此推断,苹果酸/盐促进暗棕壤磷释放的主要机理在于苹果酸阴离子反应。苹果酸/盐对暗棕壤磷的释放具有累加性 ...
宋金凤 +5 more
doaj
以湘中丘陵区檵木-南烛-杜鹃灌草丛(LVR)、檵木-杉木-白栎灌木林(LCQ)、马尾松-柯(又名石栎)-檵木针阔混交林(PLL)、柯-红淡比-青冈常绿阔叶林(LAG)4种林地为对象,采用Tiessen和Moir修正后的Hedley磷(P)分级方法,研究不同植被恢复阶段林地土壤P各分级组分含量及其组成比例。结果表明:随着植被恢复,同一土层全磷(TP)、总无机磷(Pi)、总有机磷(Po)含量增加,NaHCO3-Pi、NaOH-Pi、HCl-Pi和NaHCO3-Po、NaOH-Po属于快速积累型 ...
王留芳 +4 more
doaj
[Quercetin inhibits proliferation and migration and promotes apoptosis of gastric cancer cells by promoting phosphorylation-mediated YAP inactivation]. [PDF]
Wang Y +8 more
europepmc +1 more source
[PINK1 suppresses colorectal cancer cell growth through epigenetic regulation of histone modifications]. [PDF]
Wang M, Luan S, Fan X, Han D, Zhu Y.
europepmc +1 more source
[Antitumor component-Ι in <i>Agkistrodon halys</i> venom inhibits proliferation and migration of cisplatin-resistant gastric cancer cells by downregulating RAI14]. [PDF]
Li Y +7 more
europepmc +1 more source
[<i>Qingjie Fuzheng</i> Granules alleviates 5-fluorouracil-induced skeletal muscle injury in tumor-bearing mice by inhibiting mitochondria-dependent apoptosis and activating the AMPK-PGC-1α pathway]. [PDF]
Zhao J +5 more
europepmc +1 more source
[Research progress on extracellular vesicles derived from platelet-rich plasma in tissue repair and regeneration]. [PDF]
Han J, Cheng B.
europepmc +1 more source
【目的】 探讨EBV LMP2A基因对人胃癌细胞生物学特性的影响?【方法】 用包含LMP2A基因的逆转录病毒载体转染人胃癌细胞株(SGC7901),QRT-PCR检测LMP2A基因的表达,CCK8检测细胞增殖情况;流式细胞术检测细胞凋亡;划痕试验和transwell检测细胞迁移能力;克隆形成试验检测细胞成瘤能力?【结果】 LMP2A基因转染的胃癌细胞生长速度增快?凋亡减少?迁移能力增强,在平板和软琼脂中集落形成能力增强?【结论】 LMP2A基因能明显增强胃癌细胞的恶性生物学行为?
doaj
[LINC00261 suppresses esophageal squamous cell carcinoma proliferation, invasion, and metastasis by targeting the miR-23a-3p/ZNF292 axis]. [PDF]
Mi Y +6 more
europepmc +1 more source
[<i>Yiqi Jiedu</i> Formula inhibits proliferation, invasion and migration of nasopharyngeal carcinoma cells by inhibiting the AKT1/GLUT1 signaling pathway]. [PDF]
Xu H +8 more
europepmc +1 more source

