With no lysine kinases: the key regulatory networks and phytohormone cross talk in plant growth, development and stress response

Saddhe, Ankush Ashok; Karle, Suhas Balasaheb; Aftab, Tariq; Kumar, Kundan

doi:10.1007/s00299-021-02728-y

Cited by 13 publications

(11 citation statements)

References 64 publications

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“…There is enough evidence to suggest that role of these hormones has no limitations to a specific stage, and an interlinked network of these hormones is associated with the regulation of various aspects of fruit development ( Fenn and Giovannoni, 2021 ; Xiong et al, 2021 ). They synchronize signals between seed and surrounding tissue, regulating the whole process of fruit development starting from fruit setting, growth, maturation, and ripening ( Fuentes et al, 2019 ; Saddhe et al, 2021 ). The advance in genomics has assisted in understanding the overlapping patterns of gene expressions involved with these hormonal actions across different crop plant species ( Zhang et al, 2009b ; Gao et al, 2018 ).…”

Section: Crosstalk Between Phytohormones Influencing Fruit Developmen...mentioning

confidence: 99%

Abscisic Acid: Role in Fruit Development and Ripening

Gupta¹,

Wani

Razzaq

et al. 2022

Front. Plant Sci.

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Abscisic acid (ABA) is a plant growth regulator known for its functions, especially in seed maturation, seed dormancy, adaptive responses to biotic and abiotic stresses, and leaf and bud abscission. ABA activity is governed by multiple regulatory pathways that control ABA biosynthesis, signal transduction, and transport. The transport of the ABA signaling molecule occurs from the shoot (site of synthesis) to the fruit (site of action), where ABA receptors decode information as fruit maturation begins and is significantly promoted. The maximum amount of ABA is exported by the phloem from developing fruits during seed formation and initiation of fruit expansion. In the later stages of fruit ripening, ABA export from the phloem decreases significantly, leading to an accumulation of ABA in ripening fruit. Fruit growth, ripening, and senescence are under the control of ABA, and the mechanisms governing these processes are still unfolding. During the fruit ripening phase, interactions between ABA and ethylene are found in both climacteric and non-climacteric fruits. It is clear that ABA regulates ethylene biosynthesis and signaling during fruit ripening, but the molecular mechanism controlling the interaction between ABA and ethylene has not yet been discovered. The effects of ABA and ethylene on fruit ripening are synergistic, and the interaction of ABA with other plant hormones is an essential determinant of fruit growth and ripening. Reaction and biosynthetic mechanisms, signal transduction, and recognition of ABA receptors in fruits need to be elucidated by a more thorough study to understand the role of ABA in fruit ripening. Genetic modifications of ABA signaling can be used in commercial applications to increase fruit yield and quality. This review discusses the mechanism of ABA biosynthesis, its translocation, and signaling pathways, as well as the recent findings on ABA function in fruit development and ripening.

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Section: Crosstalk Between Phytohormones Influencing Fruit Developmen...mentioning

confidence: 99%

Abscisic Acid: Role in Fruit Development and Ripening

Gupta¹,

Wani

Razzaq

et al. 2022

Front. Plant Sci.

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“…Of the other two clusters, one (cluster B) comprises nodes for response to salt stress (GO:0009651) and osmotic stress (GO:0006970), together with 126 significantly upregulated genes (Table S8). In cluster B, the most strongly upregulated genes are for a serine-threonine protein kinase (Table S12), which is a family well connected to drought response (Saddhe et al , 2021) and salt stress (GO:0009651; 19-fold), and for an uncharacterized transcription factor (18-fold). Drought, salt, and osmotic stress response pathways are well-known to overlap (Buti et al , 2019).…”

Section: Resultsmentioning

confidence: 99%

Drought and recovery in barley: key gene networks and retrotransposon response

Paul¹,

Tanskanen²,

Jääskeläinen³

et al. 2023

Preprint

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SUMMARYDuring drought, plants close their stomata at a critical soil water content (SWC), together with diverse physiological, developmental, and biochemical responses.Using precision-phenotyping lysimeters, we imposed pre-flowering drought on four barley varieties (Arvo, Golden Promise, Hankkija 673 and Morex) and followed their physiological responses. For Golden Promise, we carried out RNA-seq on leaf transcripts before and during drought, and during recovery, also examining retrotransposonBARE1expression. Transcriptional data were subjected to network analysis.The varieties differed by their critical SWC, Hankkija 673 responding at the highest and Golden Promise at the lowest. Pathways connected to drought and salinity response were strongly upregulated during drought; pathways connected to growth and development were strongly downregulated. During recovery, growth and development pathways were upregulated; altogether 117 networked genes involved in ubiquitin-mediated autophagy were downregulated. The differential response to SWC suggests adaptation to distinct rainfall patterns.We identified several strongly differentially expressed genes not earlier associated with drought response in barley.BARE1transcription is strongly transcriptionally upregulated by drought and downregulated during recovery unequally between the investigated cultivars. The downregulation of networked autophagy genes suggests a role for autophagy in drought response; its importance to resilience should be further investigated.

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“…H 2 O 2 has been confirmed to affect seed germination and seed longevity through activating multiple MAPK cascades which are involved in responses to various biotic and abiotic stresses and developmental processes [ 15 , 65 , 66 ]. WNK is a newly discovered protein kinase of MAPKKK family that has been reported as a regulator of plant stress resistance and tissue development [ 67 , 68 ], but little is known of their roles in seed biology. In rice, a genome-wide expression analysis of WNK kinase gene family showed that WNK6 , WNK7 , and WNK8 might potentially play a role during heat stress [ 69 ].…”

Section: Discussionmentioning

confidence: 99%

“…Its expression level during aging was under high correlation coefficients with the expression of AsMDHAR , AsMn-SOD , and the activity of CAT. Moreover, previous works indicated that WNK8 was involved in ABA signal transduction and ABA synthesis, and its RNAi line exhibits higher ABA content than that of the wild [ 67 , 71 ]. It is commonly known that ABA inhibits seed germination, so the down-regulation of WNK8 in this study may cause an increase in ABA content, and thus inhibit seed germination.…”

Section: Discussionmentioning

confidence: 99%

Dynamic Responses of Antioxidant and Glyoxalase Systems to Seed Aging Based on Full-Length Transcriptome in Oat (Avena sativa L.)

Sun

Mao

et al. 2022

Antioxidants

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Seed aging is a major challenge for food security, agronomic production, and germplasm conservation, and reactive oxygen species (ROS) and methylglyoxal (MG) are highly involved in the aging process. However, the regulatory mechanisms controlling the abundance of ROS and MG are not well characterized. To characterize dynamic response of antioxidant and glyoxalase systems during seed aging, oat (Avena sativa L.) aged seeds with a range of germination percentages were used to explore physiological parameters, biochemical parameters and relevant gene expression. A reference transcriptome based on PacBio sequencing generated 67,184 non-redundant full-length transcripts, with 59,050 annotated. Subsequently, eleven seed samples were used to investigate the dynamic response of respiration, ROS and MG accumulation, antioxidant enzymes and glyoxalase activity, and associated genes expression. The 48 indicators with high correlation coefficients were divided into six major response patterns, and were used for placing eleven seed samples into four groups, i.e., non-aged (Group N), higher vigor (Group H), medium vigor (Group M), and lower vigor (Group L). Finally, we proposed a putative model for aging response and self-detoxification mechanisms based on the four groups representing different aging levels. In addition, the outcomes of the study suggested the dysfunction of antioxidant and glyoxalase system, and the accumulation of ROS and MG definitely contribute to oat seed aging.

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With no lysine kinases: the key regulatory networks and phytohormone cross talk in plant growth, development and stress response

Cited by 13 publications

References 64 publications

Abscisic Acid: Role in Fruit Development and Ripening

Abscisic Acid: Role in Fruit Development and Ripening

Drought and recovery in barley: key gene networks and retrotransposon response

Dynamic Responses of Antioxidant and Glyoxalase Systems to Seed Aging Based on Full-Length Transcriptome in Oat (Avena sativa L.)

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