2020年9月28日 · We present an updated report of the biological function of GI, integrating late insights into its role in floral initiation, flower development and volatile flower production. GIGANTEA (GI) is a gene involved in multiple biological functions, which have been analysed and are partially conserved in a series of mono- and dicotyledonous plant species.

2023年7月1日 · GIGANTEA (GI) encodes a component of the circadian clock core oscillator and has been identified as a regulatory pathway of the circadian rhythm and photoperiodic flowering in model plants. However, the regulatory pathway of GI affecting flowering time is unknown in maize.

1999年9月1日 · Flowering of Arabidopsis is promoted by long days and delayed by short days. Mutations in the GIGANTEA (GI) gene delay flowering under long days but have little or no effect under short days. We have now isolated the GI gene and show that it encodes a novel, putative membrane protein.

2011年7月12日 · We found that GI expressed in either mesophyll or vascular bundles rescues the late-flowering phenotype of the gi-2 loss-of-function mutant under both short-day and long-day conditions. Interestingly, GI expressed in mesophyll or vascular tissues increases FT expression without up-regulating CO expression under short-day conditions.

2020年8月19日 · gi 是生物节律钟输出的重要基因， 也是植物进行正常生命活动的 重要基因， 它编码一个含多个跨膜的核蛋白， 在光周期和生物节律 钟调控植物开花途径中起重要作用。

GI是一种核蛋白 (唐维等, 2014) ,最先在拟南芥中发现GI作为开花调控因子,调控植物成花 (Suárez López et al., 2001)。 在LD条件下,拟南芥gi突变体延迟开花 (Fowler et al., 1999) ,而在拟南芥中过表达GI则出现早花表型 (Mizoguchi et al., 2005)。深入研究发现, At GI蛋白能与FKF1 (F-BOX 1)蛋白形成At GIFKF1复合体,通过降解CO抑制因子CDF1 (Cycling Doe Factor1)的表达来激活CO基因。 为研究GI的功能和作用,分别在拟南芥的叶肉、维管束、表皮、顶端分生组织和根部表达GI。

2015年1月25日 · GIGANTEA (GI) is a plant specific nuclear protein and functions in diverse physiological processes such as flowering time regulation, light signaling, hypocotyl elongation, control of circadian rhythm, sucrose signaling, starch accumulation, chlorophyll accumulation, transpiration, herbicide tolerance, cold tolerance, drought tolerance, and miRN...

GIGANTEA (GI) is a plant-specific nuclear protein, identified for the first time in Arabidopsis thaliana as a late flowering mutant [1]. Although six decades have passed since its discovery, its precise molecular function has not been completely elucidated.

2024年2月1日 · CCA1 prolongs the flowering time of Arabidopsis by directly repressing the expression of the flowering activators GI, SOC1, and FT. During the daytime, CCA1 binds to the CCA1-binding site (CBS) in the promoters of SOC1 and GI, …

GIGANTEA (GI) encodes a component of the circadian clock core oscillator and has been identified as a regulatory pathway of the circadian rhythm and photoperiodic flowering in model plants. However, the regulatory pathway of GI affecting flowering time is unknown in maize. Here, we identified that t …