Picture Show
Member Center
Reader Center
-
Hosted by:Chinese Academy of Sciences
Sponsored by:Institute of Botany, Chinese Academy of Sciences, Botanical Society of China
Co-hosted by:Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences
Institute of Biotechnology and Germplasm Resources, Yunnan AgriculturalAcademy
Fujian Agriculture and Forestry University
Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University
State Key Laboratory of Crops Biology, Shandong Agricultural University
WeChat:zwxb_2009
Table of Content
- Effect of Amino Acid Site Mutation on the Structure and Function of Phytochrome B in Arabidopsis thaliana
- Yanxiao Chen, Yaping Li, Jinjun Zhou, Lixia Xie, Yongbin Peng, Wei Sun, Yanan He, Conghui Jiang, Zenglan Wang, Zhongke Zheng, Xianzhi Xie
- Chinese Bulletin of Botany. 2024, 59(3): 0-0. doi:10.11983/CBB23074
- Abstract ( 106 ) PDF (1267KB) ( 158 ) Save
- References | Related Articles | Metrics
- A Comprehensive Overview of the Studies on the Gene Function in Pteridophytes
- Fengpan Wang, Zhaoxuan Zhong, Lijun Chen, Jiangping Shu, Yuehong Yan
- Chinese Bulletin of Botany. 2024, 59(3): 0-0. doi:10.11983/CBB23090
- Abstract ( 107 ) PDF (1564KB) ( 229 ) Save
- References | Related Articles | Metrics
Organisms have evolved different photoreceptors in
order to adapt to the ever-changing conditions of the external light
environment. Among them, photochrome is one of classic plant photoreceptors,
mainly perceiving red and far-red light.
Phytochrome detects red and far-red light through the light conversion between
the dark-adapted Pr state and the light-activated Pfr state. All plant
phytochromes have a conserved N-terminal photoreceptor region and a C-terminal regulatory
region. The N-terminal includes NTE, PAS, GAF and PHY subdomains, while
C-terminal includes two PAS domains and a histidine kinase-related domain
(HKRD). In order to further understand how the structure of photochromes
controls its function, many photochrome-deficient derivatives and amino acid
site mutants have been obtained and fully studied. It has been found that the
N-terminal domain plays important roles in the spectral properties, light
signal perception and light signal transduction of phyB. The C-terminal domain
is believed to be essential for dimerization and nuclear localization of
photochrome. This paper mainly reviews the mutations of amino acid sites in
various subdomains of phyB in Arabidopsis thaliana and their effects on
the function of phyB, in order to have a deeper understanding of the structure
and functional regulation of phytochrome B. It lays a foundation for future
crops to obtain desired physiological characteristics through gene editing.
Pteridophytes (lycophytes and ferns) are the second most diverse lineage of
vascular plants on the earth, exceeded only by angiosperms. These plants share
several morphological and physiological traits with other vascular and
sporophyte plants, and play a vital role in the evolutionary progression of
land plants from lower to higher forms. Pteridophytes exhibit many unique
biological processes different from other plant groups, and play a pivotal role
in the study of plant genome evolution, organ development, reproductive
phenomena, and adaptation to changing environment. The swift advancement and
implementation of modern sequencing technology has greatly accelerated the
sequencing and assembly of whole genomes, and greatly promoted the exploration
gene function of pteridophytes. To gain an enhanced comprehension of the
present interesting fields and noteworthy development in functional genomics
research of pteridophytes, this article provides a thorough overview of the
functional investigation of pteridophyte genes from various perspectives. It
mainly focuses on the development of organs, reproductive processes,
adaptability to the environment, and the synthesis of secondary metabolites. It
presents a systematic exploration of the molecular functions of multiple genes,
highlighting the practical implementation of gene function research in clarifying
the unique biological processes specific to pteridophytes. This highlights the
significance of investigating the unique biological phenomena of pteridophytes
at the molecular level, as it facilitates a better understanding and
utilization of this diverse group of plants. In addition, this article puts
forward several recommendations on how to expedite the research on gene function
of pteridophytes, and to take advantage of molecular function studies in
exploring the biological characteristics of terrestrial plants and expanding
the application scope of pteridophytes.