Article
Plant Sciences
Bo Gao, Shaowu Hu, Liquan Jing, Xichao Niu, Yunxia Wang, Jianguo Zhu, Yulong Wang, Lianxin Yang
Summary: The study found that elevated CO2 levels significantly increased rice grain yield, especially when no leaf or spikelet removal was performed. The increase in grain yield was associated with an increase in panicle number and fully-filled grain percentage (FGP).
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Biochemistry & Molecular Biology
Milan Kumar Lal, Nitin Sharma, Sandeep B. Adavi, Eshita Sharma, Muhammad Ahsan Altaf, Rahul Kumar Tiwari, Ravinder Kumar, Awadhesh Kumar, Abhijit Dey, Vijay Paul, Brajesh Singh, Madan Pal Singh
Summary: Elevated CO2 levels and high temperature stress can significantly impact the source-sink relationship and sugar metabolism in crops. This can result in compromised crop growth and quality attributes. This review aims to provide insights for future researchers on how crops adapt their source-sink processes under changing climate scenarios.
PLANT MOLECULAR BIOLOGY
(2022)
Review
Plant Sciences
Erik H. Murchie, Matthew Reynolds, Gustavo A. Slafer, M. John Foulkes, Liana Acevedo-Siaca, Lorna McAusland, Robert Sharwood, Simon Griffiths, Richard B. Flavell, Jeff Gwyn, Mark Sawkins, Elizabete Carmo-Silva
Summary: Source traits, such as photosynthesis, play a crucial role in enhancing crop yield potential. However, for a comprehensive understanding, the interactions of various processes in crop regulation, including sink activities, need to be considered. This review uses 'wiring diagrams' to integrate these interactions and examine the regulation of source traits at different stages of wheat development. The review also discusses challenges and opportunities in photosynthesis components due to canopy formation and the feedback regulation of source activity.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Horticulture
Gabriela Justamante Handel Schmitz, Luciano Freschi, Renata Callegari Ferrari, Fernanda Helena Goncalves Peroni-Okita, Beatriz Rosana Cordenunsi-Lysenko
Summary: Starch synthesis and degradation in banana pulp have been extensively studied, but little is known about these processes in the peel. This study explored the potential link between photosynthetic activity and starch accumulation in banana peel. The results showed that as bananas ripen, starch in the peel is degraded while soluble sugars increase, similar to what occurs in the pulp.
SCIENTIA HORTICULTURAE
(2022)
Article
Plant Sciences
C. Zhang, K. Yan, L. Z. Lin, Y. M. Fang, X. Y. Zhang
Summary: This study conducted a pruning experiment to investigate the effects of source-sink regulation on the photosynthetic physiology and fruit yield of Roxburgh rose. The results showed that cutting off vegetative branches reduced physiological fruit loss and malformed fruits, while increasing single fruit quality and yield. The stomatal characteristics, composition of mesophyll tissue, and photosynthesis of leaves on reproductive branches were significantly affected by the ratio of vegetative and reproductive shoots. These findings provide guidance for improving the fruit yield of Roxburgh rose.
Article
Agriculture, Multidisciplinary
W. U. Xiao-li, L. I. U. Miao, L. Chao-su, Allen David (Jack) Mchugh, L. Ming, X. I. O. N. G. Tao, L. I. U. Yu-bin, T. A. N. G. Yong-lu
Summary: The source-sink ratio affects wheat yield, but is influenced by climate and nitrogen deficiency. An increase in sink capacity leads to a higher degree of source limitation. Chuanmai 104 shows better performance in source-sink relations.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2022)
Review
Biochemistry & Molecular Biology
Laise Rosado-Souza, Ryo Yokoyama, Uwe Sonnewald, Alisdair R. Fernie
Summary: Agriculture is facing challenges of increased demand and environmental deterioration. This review discusses studies on source-sink interactions and efforts to improve photosynthesis, carbon-concentrating mechanisms, and nitrogen and water-use efficiencies, as well as the importance of transport and sink functions in determining crop yield. Future strategies should focus on optimizing each step to enhance yield.
Review
Plant Sciences
Yucheng Ming, Libo Jiang, Dongchao Ji
Summary: This review discusses the recent advances in epigenetic regulation of tomato fruit ripening, including DNA methylation, N6-Methyladenosine mRNA modification, histone demethylation/deacetylation, and non-coding RNA. This research contributes to a better understanding of the regulatory mechanisms governing tomato fruit ripening and provides new insights for precise modulation of these mechanisms.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Changan Zhu, Shaofang Wu, Ting Sun, Zhiwen Zhou, Zhangjian Hu, Jingquan Yu
Summary: Rosmarinic acid (RA) treatment in postharvest significantly delayed ripening, reduced ethylene production, inhibited color change, promoted amino acid accumulation, and enhanced antioxidant activity in tomato fruits. These findings indicate a novel function of RA in fruit ripening, offering an attractive strategy to manage and improve the quality of tomato fruits.
Article
Plant Sciences
Yoav Ahouvi, Zechariah Haber, Yair Yehoshua Zach, Leah Rosental, David Toubiana, Davinder Sharma, Saleh Alseekh, Hiromi Tajima, Alisdair R. Fernie, Yariv Brotman, Eduardo Blumwald, Nir Sade
Summary: Changes in climate conditions can decrease the productivity of crop plants by inducing chloroplast degradation and reducing carbon and nitrogen assimilation. This study demonstrates that delaying stress-induced senescence through modulation of the tomato chloroplast vesiculation pathway can lead to more efficient use of carbon and nitrogen and higher yields. Furthermore, CRISPR/CAS9 knockout of the CV pathway in tomato plants with enhanced sink capacity improves stress tolerance and fruit quantity, quality, and harvest index. Metabolic and transcriptomic analysis also identified genes and pathways associated with stress response and improved tomato fruit quality under stress conditions.
PLANT AND CELL PHYSIOLOGY
(2023)
Review
Plant Sciences
Zhiya Liu, Xuetong Wu, Huwei Liu, Meiling Zhang, Weibiao Liao
Summary: Fruit ripening is regulated by transcription factors, plant hormone ethylene, and DNA methylation. DNA methylation affects fruit ripening by transferring methyl groups. Tomato fruit ripening is dynamically regulated by DNA methylation and demethylation, but the specific molecular mechanism is still unclear.
PHYSIOLOGIA PLANTARUM
(2022)
Article
Agriculture, Multidisciplinary
Majid Alikhani-Koupaei, Abdollah Ehtesham Nia
Summary: This study investigated the impact of reducing sink on source in On-palms with a bunch number greater than eight. The study found that removing bunches stabilized yield components and fruit size during mid-Kimri, suggesting a sink limitation. Bunch thinning increased these indicators compared to normal trees with a bunch number between six and eight, indicating a source limitation.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Plant Sciences
Jose F. Sanchez-Sevilla, Miguel A. Botella, Victoriano Valpuesta, Victoria Sanchez-Vera
Summary: Autophagy is a catabolic and recycling pathway essential for maintaining cellular homeostasis in plants. In cultivated strawberry fruits, autophagy occurs in two waves, characterized by differential expression of ATG genes and ATG8 lipidation. This process plays a significant role in fruit ripening, affecting growth and development.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Horticulture
Xiaohong Kou, Sen Yang, Liping Chai, Caie Wu, Jiaqian Zhou, Yefang Liu, Zhaohui Xue
Summary: Fruit ripening is a complex and delicate process in which abscisic acid plays an important role as a plant hormone. It achieves fruit softening, coloring, and aroma synthesis by regulating key ripening genes, other plant hormones, and transcription factors.
SCIENTIA HORTICULTURAE
(2021)
Review
Plant Sciences
Javier Brumos
Summary: Fruit ripening is a highly regulated developmental process aiming to attract herbivores by maximizing organoleptic traits. The process involves coordinated changes in color, flavor, and firmness. Dynamic interactions between hormones, transcription factors, and epigenetic modifications establish a complex regulatory network for ripening-related gene expression.
CURRENT OPINION IN PLANT BIOLOGY
(2021)
Article
Plant Sciences
Fatima Naim, Karina Khambatta, Lilian M. V. P. Sanglard, Georgina Sauzier, Juliane Reinhardt, David J. Paterson, Ayalsew Zerihun, Mark J. Hackett, Mark R. Gibberd
Summary: Metal homeostasis plays a crucial role in plant growth and development. Using X-ray fluorescence microscopy, researchers visualized and analyzed the distribution of essential mineral nutrients in wheat leaves infected with a fungal pathogen, revealing hyperaccumulation and depletion patterns around the infection site. The study demonstrates the capability of XFM for high-resolution mapping of nutrient distribution in diseased leaves.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Dinorah M. S. Marcal, Rodrigo T. Avila, Luisa F. Quiroga-Rojas, Raylla P. B. de Souza, Carlos C. Gomes Junior, Lucas R. Ponte, Marcela L. Barbosa, Leonardo A. Oliveira, Samuel C. Martins, Jose D. C. Ramalho, Fabio M. DaMatta
Summary: The study found that high light and eC(a) can independently improve the growth and photosynthetic performance of coffee plants, with some allometric changes observed under the combination of eC(a) and high light. Stimulation of photosynthetic rates by eC(a) did not directly affect stomatal and mesophyll conductances, and no signs of photosynthetic downregulation were found regardless of treatments.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Plant Sciences
Lucas de Avila Silva, Rebeca P. Omena-Garcia, Jorge A. Condori-Apfata, Paulo Mafra de Almeida Costa, Natalia Machado Silva, Fabio M. DaMatta, Agustin Zsogon, Wagner L. Araujo, Edgard A. de Toledo Picoli, Ronan Sulpice, Adriano Nunes-Nesi
Summary: The study found that nitrogen can promote changes in specific leaf area (SLA) through metabolism and anatomical traits in Capsicum plants. Different commercial cultivars of Capsicum exhibited varied responses in SLA to changes in both irradiance level and nitrogen supply, indicating the influence of genotype and metabolites content on leaf characteristics.
Article
Plant Sciences
Marco A. Toral-Juarez, Rodrigo T. Avila, Amanda A. Cardoso, Fred A. L. Brito, Kleiton L. G. Machado, Wellington L. Almeida, Raylla P. B. Souza, Samuel C. Martins, Fabio M. DaMatta
Summary: The study showed that a drought-tolerant Coffea canephora clone exhibited less damage and higher recovery after waterlogging and reoxygenation compared to a drought-sensitive clone. Differences between the clones were more pronounced during the reoxygenation phase, possibly due to previous drought experiences. These findings suggest the potential for selecting new coffee genotypes with enhanced tolerance to both drought and waterlogging for increased sustainability under changing climates.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Cell Biology
Bernard Gutmann, Michael Millman, Lilian Vincis Pereira Sanglard, Ian Small, Catherine Colas des Francs-Small
Summary: In Arabidopsis thaliana, there are numerous C-to-U RNA editing events in the mitochondria and chloroplasts, with specificity provided by PPR proteins. The study identified MEF100 as essential for editing at specific sites in Arabidopsis mitochondria, affecting Complex I activity and leading to physiological consequences. Loss of the necessity for MEF100 editing results in divergence in the MEF100 binding site.
Article
Agronomy
Isabel Marques, Duarte Gouveia, Jean-Charles Gaillard, Sonia Martins, Magda C. Semedo, Fernando C. Lidon, Fabio M. DaMatta, Ana I. Ribeiro-Barros, Jean Armengaud, Jose C. Ramalho
Summary: Drought has a significant impact on coffee production, affecting its quality and quantity. The proteomic response to water deficits varies between different genotypes, with C. arabica showing a stronger ability to adapt and repair compared to C. canephora. Developing new coffee varieties that can withstand water scarcity is crucial.
Article
Chemistry, Applied
Acacio Rodrigues-Salvador, Jaciara Lana-Costa, Rebeca Patricia Omena-Garcia, Willian Batista-Silva, Federico Scossa, Laise Rosado-Souza, Jorge Luis Perez-Diaz, Paulo Eduardo Menezes-Silva, Fabio M. DaMatta, Ronan Sulpice, Wagner L. Araujo, Agustin Zsogon, Alisdair R. Fernie, Adriano Nunes-Nesi
Summary: Through analyzing ten diverse Capsicum chinense accessions, the study found that despite variations in fruit pungency, the composition and metabolite levels in fruit placenta and pericarp were stable across accessions. Most of the metabolite variability occurred between fruit developmental stages rather than among accessions.
Article
Plant Sciences
Moab T. Andrade, Leonardo A. Oliveira, Talitha S. Pereira, Amanda A. Cardoso, Willian Batista-Silva, Fabio M. DaMatta, Aguston Zsogon, Samuel C. Martins
Summary: This study investigates the effects of the dgt mutation on plant hydraulics and leaf gas exchange in tomato plants. The dgt mutant shows reduced vessel diameter and conduit number in petioles and stems, resulting in lower hydraulic conductivities. Interestingly, despite similar root characteristics, the dgt mutant has lower root hydraulic conductance. Additionally, the increased vein and stomatal density in the dgt mutant does not lead to higher leaf gas exchange due to compromised hydraulic efficiency.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Plant Sciences
Isabel Marques, Ana P. Rodrigues, Duarte Gouveia, Fernando C. Lidon, Sonia Martins, Magda C. Semedo, Jean-Charles Gaillard, Isabel P. Pais, Jose N. Semedo, Paula Scotti-Campos, Fernando H. Reboredo, Fabio L. Partelli, Fabio M. DaMatta, Jean Armengaud, Ana I. Ribeiro-Barros, Jose C. Ramalho
Summary: This study investigated the defense mechanisms of Coffea plants against drought and their interaction with high levels of carbon dioxide. The results showed that the Icatu variety exhibited increased tolerance to drought under high carbon dioxide concentration, and several proteins demonstrated significant changes in response to severe water deficit. These findings are important for understanding and improving drought tolerance in Coffea species.
JOURNAL OF PLANT PHYSIOLOGY
(2022)
Article
Plant Sciences
Gabriella Vinci, Isabel Marques, Ana P. Rodrigues, Sonia Martins, Antonio E. Leitao, Magda C. Semedo, Maria J. Silva, Fernando C. Lidon, Fabio M. DaMatta, Ana Ribeiro-Barros, Jose C. Ramalho
Summary: This study aims to understand the response mechanisms of coffee plants to temperature and carbon dioxide concentration changes, providing guidance for breeding coffee genotypes adapted to global warming conditions. The study found that temperature was the major factor affecting protective molecules and genes, while carbon dioxide concentration attenuated the response to temperature and promoted better recovery. Hybrid plants exhibited stronger gene expression responses, while Marsellesa showed greater acclimation potential.
Article
Biochemistry & Molecular Biology
Isabel Marques, Isabel Fernandes, Octavio S. Paulo, Dora Batista, Fernando C. Lidon, Fabio Partelli, Fabio M. DaMatta, Ana I. Ribeiro-Barros, Jose C. Ramalho
Summary: This study analyzed the transcriptome changes in coffee plants under different water availability and elevated CO2 levels. Severe water deficits led to down-regulation of most differentially expressed genes, while elevated CO2 mitigated the impacts of drought. The response of coffee plants to water stress is mainly associated with reactive oxygen species scavenging and ABA signaling pathways.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Paula Moolhuijzen, Lilian M. V. P. Sanglard, David J. Paterson, Sean Gray, Karina Khambatta, Mark J. Hackett, Ayalsew Zerihun, Mark R. Gibberd, Fatima Naim
Summary: In susceptible wheat cultivars infected with Pyrenophora tritici-repentis, calcium oscillations are modified, resulting in frozen host defence signals and silencing of recognition and defence mechanisms. In contrast, resistant cultivars show heightened defence response and calcium accumulation at later stages of disease development. By using gene expression data and high-resolution elemental imaging, the study provides insights into spatial and temporal changes in the asymptomatic green region, highlighting the benefits of spatially resolved molecular analysis and nutrient mapping in understanding complex plant-pathogen interactions.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Ueliton S. de Oliveira, Antonio H. de Souza, Moab T. de Andrade, Leonardo A. Oliveira, Debora G. Gouvea, Samuel C. V. Martins, Jose D. C. Ramalho, Amanda A. Cardoso, Fabio M. DaMatta
Summary: This study reveals that coffee plants grown under high light and elevated CO2 concentration exhibit increased stomatal conductance and adjustments in hydraulic architecture, leading to improved water supply to the leaves.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Forestry
Rodrigo T. Avila, Cade N. Kane, Timothy A. Batz, Christophe Trabi, Fabio M. Damatta, Steven Jansen, Scott A. M. McAdam
Summary: This study investigates the correlation between the relative vessel area of xylem and the resistance to embolism in different species from the genera Acer, Cinnamomum, Ilex, Quercus, and Persea. The results show that a low vessel lumen fraction (VLF) increases the resistance to gas movement and reduces the likelihood of embolism propagation, while a high VLF enhances gas transport and connectivity between conduits. Gas movement rate due to local pressure differences and xylem network connectivity is identified as a central driver of embolism propagation in angiosperm vessels.
Article
Forestry
Leonardo A. Oliveira, Amanda A. Cardoso, Moab T. Andrade, Talitha S. Pereira, Wagner L. Araujo, Gleison A. Santos, Fabio M. Damatta, Samuel C. Martins
Summary: The ongoing changes in climate and the resulting mortality of forests emphasize the need to understand plant traits that contribute to drought tolerance. This study assessed key foliar traits in three commercial Eucalyptus hybrids, highlighting the importance of xylem resistance to embolism in drought tolerance.