Journal of Integrative Plant Biology This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

RACK1A promotes hypocotyl elongation by scaffolding light signaling components in Arabidopsis
J Integr Plant Biol. 2024 Apr 1. doi: 10.1111/jipb.13651. Online ahead of print.ABSTRACTPlants deploy versatile scaffold proteins to intricately modulate complex cell signaling. Among these, RACK1A (Receptors for Activated C Kinase 1A) stands out as a multifaceted scaffold protein functioning as a central integrative hub for diverse signaling pathways. However, the precise mechanisms by which RACK1A orchestrates signal transduction to optimize seedling development remain largely unclear. Here, we demonstrate that RACK1A facilitates hypocotyl elongation by functioning as a flexible platform that connects multiple key compon...
Source: Journal of Integrative Plant Biology - April 1, 2024 Category: Biology Authors: Yajuan Fu Wei Zhu Yeling Zhou Yujing Su Zhiyong Li Dayan Zhang Dong Zhang Jinyu Shen Jiansheng Liang Source Type: research

A signaling cascade mediating fruit trait development via phosphorylation-modulated nuclear accumulation of JAZ repressor
J Integr Plant Biol. 2024 Apr 1. doi: 10.1111/jipb.13654. Online ahead of print.ABSTRACTIt is generally accepted that jasmonate-ZIM domain (JAZ) repressors act to mediate jasmonate (JA) signaling via CORONATINE-INSENSITIVE1 (COI1)-mediated degradation. Here, we report a cryptic signaling cascade where a JAZ repressor, FvJAZ12, mediates multiple signaling inputs via phosphorylation-modulated subcellular translocation rather than the COI1-mediated degradation mechanism in strawberry (Fragaria vesca). FvJAZ12 acts to regulate flavor metabolism and defense response, and was found to be the target of FvMPK6, a mitogen-activated...
Source: Journal of Integrative Plant Biology - April 1, 2024 Category: Biology Authors: Wei Wang Jinyao Ouyang Yating Li Changsheng Zhai Bing He Huahan Si Kunsong Chen Jocelyn K C Rose Wensuo Jia Source Type: research

A transcriptional cascade mediated by two APETALA2 family members orchestrates carotenoid biosynthesis in tomato
In this study, we determined that SlAP2c, an APETALA2 (AP2) family member, acts as a transcriptional repressor to regulate carotenoid biosynthesis in tomato (Solanum lycopersicum). Knockout of SlAP2c in both the "MicroTom" and "Ailsa Craig" backgrounds resulted in greater lycopene accumulation, whereas overexpression of this gene led to orange-ripe fruit with significantly lower lycopene contents than the wild type. We established that SlAP2c represses the expression of genes involved in lycopene biosynthesis by directly binding to the cis-elements in their promoters. Moreover, SlAP2c relies on its EAR motif to recruit the...
Source: Journal of Integrative Plant Biology - March 28, 2024 Category: Biology Authors: Xiaoqing He Kaidong Liu Yi Wu Weijie Xu Ruochen Wang Julien Pirrello Mondher Bouzayen Mengbo Wu Mingchun Liu Source Type: research

Identification and characterization of camptothecin tailoring enzymes in Nothapodytes tomentosa
J Integr Plant Biol. 2024 Mar 22. doi: 10.1111/jipb.13649. Online ahead of print.ABSTRACTCamptothecin is a complex monoterpenoid indole alkaloid with remarkable antitumor activity. Given that two C-10 modified camptothecin derivatives, topotecan and irinotecan, have been approved as potent anticancer agents, there is a critical need for methods to access other aromatic ring-functionalized congeners (e.g., C-9, C-10, etc.). However, contemporary methods for chemical oxidation are generally harsh and low-yielding when applied to the camptothecin scaffold, thereby limiting the development of modified derivatives. Reported her...
Source: Journal of Integrative Plant Biology - March 22, 2024 Category: Biology Authors: Yin Chen Jian-Ping Huang Yong-Jiang Wang Meng-Ling Tu Junheng Li Bingyan Xu Guoqing Peng Jing Yang Sheng-Xiong Huang Source Type: research

The transcriptional control of LcIDL1-LcHSL2 complex by LcARF5 integrates auxin and ethylene signaling for litchi fruitlet abscission
J Integr Plant Biol. 2024 Mar 22. doi: 10.1111/jipb.13646. Online ahead of print.ABSTRACTAt the physiological level, the interplay between auxin and ethylene has long been recognized as crucial for the regulation of organ abscission in plants. However, the underlying molecular mechanisms remain unknown. Here, we identified transcription factors involved in indoleacetic acid (IAA) and ethylene (ET) signaling that directly regulate the expression of INFLORESCENCE DEFICIENT IN ABSCISSION (IDA) and its receptor HAESA (HAE), which are key components initiating abscission. Specifically, litchi IDA-like 1 (LcIDL1) interacts with ...
Source: Journal of Integrative Plant Biology - March 22, 2024 Category: Biology Authors: Xingshuai Ma Zidi He Ye Yuan Zhijian Liang Hang Zhang Vilde Olsson Lalun Zhuoyi Liu Yanqing Zhang Zhiqiang Huang Yulian Huang Jianguo Li Minglei Zhao Source Type: research