Exploring Cell Wall Composition and Modifications During the Development of the Gynoecium Medial Domain in Arabidopsis

Herrera-Ubaldo, Humberto; Folter, Stefan de

doi:10.3389/fpls.2018.00454

Cited by 32 publications

(41 citation statements)

References 59 publications

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“…Changes in pectin methylesterification occur in tomato, apple, and strawberry fruits during ripening; pectin methylesterification is also critical for proper seed development and germination [29,30], or root development [31,32]. The most abundant polysaccharides of the secondary CW are mannans, which play a key role for proper gynoecium, i.e., fruit transition [33,34].…”

Section: Plant Cell Wall Modifications Are Coordinated To Developmentmentioning

confidence: 99%

Plant Cell Walls Tackling Climate Change: Biotechnological Strategies to Improve Crop Adaptations and Photosynthesis in Response to Global Warming

Ezquer

Salameh

Colombo

et al. 2020

Plants

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Plant cell wall (CW) is a complex and intricate structure that performs several functions throughout the plant life cycle. The CW of plants is critical to the maintenance of cells' structural integrity by resisting internal hydrostatic pressures, providing flexibility to support cell division and expansion during tissue differentiation, and acting as an environmental barrier that protects the cells in response to abiotic stress. Plant CW, comprised primarily of polysaccharides, represents the largest sink for photosynthetically fixed carbon, both in plants and in the biosphere. The CW structure is highly varied, not only between plant species but also among different organs, tissues, and cell types in the same organism. During the developmental processes, the main CW components, i.e., cellulose, pectins, hemicelluloses, and different types of CW-glycoproteins, interact constantly with each other and with the environment to maintain cell homeostasis. Differentiation processes are altered by positional effect and are also tightly linked to environmental changes, affecting CW both at the molecular and biochemical levels. The negative effect of climate change on the environment is multifaceted, from high temperatures, altered concentrations of greenhouse gases such as increasing CO 2 in the atmosphere, soil salinity, and drought, to increasing frequency of extreme weather events taking place concomitantly, therefore, climate change affects crop productivity in multiple ways. Rising CO 2 concentration in the atmosphere is expected to increase photosynthetic rates, especially at high temperatures and under water-limited conditions. This review aims to synthesize current knowledge regarding the effects of climate change on CW biogenesis and modification. We discuss specific cases in crops of interest carrying cell wall modifications that enhance tolerance to climate change-related stresses; from cereals such as rice, wheat, barley, or maize to dicots of interest such as brassica oilseed, cotton, soybean, tomato, or potato. This information could be used for the rational design of genetic engineering traits that aim to increase the stress tolerance in key crops. Future growing conditions expose plants to variable and extreme climate change factors, which negatively impact global agriculture, and therefore further research in this area is critical.

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Section: Plant Cell Wall Modifications Are Coordinated To Developmentmentioning

confidence: 99%

Plant Cell Walls Tackling Climate Change: Biotechnological Strategies to Improve Crop Adaptations and Photosynthesis in Response to Global Warming

Ezquer

Salameh

Colombo

et al. 2020

Plants

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“…Our findings suggest that these two processes are altered in septum cells of the ntt stk mutant. We have recently shown that global changes in cell wall composition take place during gynoecium development (Herrera-Ubaldo and de Folter, 2018), for instance mannan polysaccharide content decreases when the gynoecium matures. Here, mannan polysaccharide content in mutant and wild-type gynoecia was analyzed; an evident alteration in mannan accumulation was observed in the medial region of the single and double mutants, suggesting that the reduction in expression of the mannanase gene AT3G26140 observed by in situ hybridization and qRT-PCR could be related to the increase in mannan accumulation.…”

Section: Co-expression Network To Identify Target Genesmentioning

confidence: 99%

“…Sections (12-15 µm) were obtained on a rotary microtome (Reichert-Jung 2040; Leica). Tissue sections were stained with a solution of 0.5% Alcian Blue and counterstained with 0.5% Neutral Red as previously described (Zúñiga-Mayo et al, 2012), or with Toluidine Blue as previously described (Herrera-Ubaldo and de Folter, 2018). NTT::GUS and STK::GUS inflorescences were collected and stained as previously described (Marsch-Martínez et al, 2014).…”

Section: Histology and Microscopy Analysesmentioning

confidence: 99%

“…Sections were treated with 1 M KOH for 60 min to unmask the manna epitopes (Marcus et al, 2010). Sections were washed three times with wash buffer (2% BSA, 1% PBS pH 7.0) at room temperature before incubation with the LM21 anti-mannan monoclonal antibody (PlantProbes; Marcus et al, 2010) diluted 1:500 in wash buffer for 16 h at 25°C; as described previously (Herrera-Ubaldo and de Folter, 2018). Samples were washed three times with wash buffer and incubated for 4 h at 25°C with the secondary antibody DyLight 488conjugated goat anti-rat IgM mu chain (ab98368, Abcam) diluted 1:1000 in wash buffer.…”

Section: Mannan Immunolabelingmentioning

confidence: 99%

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New roles of NO TRANSMITTING TRACT and SEEDSTICK during medial domain development in Arabidopsis fruits

et al. 2018

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The gynoecium, the female reproductive part of the flower, is key for plant sexual reproduction. During its development, inner tissues such as the septum and the transmitting tract tissue, important for pollen germination and guidance, are formed. In Arabidopsis, several transcription factors are known to be involved in the development of these tissues. One of them is NO TRANSMITTING TRACT (NTT), essential for transmitting tract formation. We found that the NTT protein can interact with several gynoecium-related transcription factors, including several MADS-box proteins, such as SEEDSTICK (STK), known to specify ovule identity. Evidence suggests that NTT and STK control enzyme and transporterencoding genes involved in cell wall polysaccharide and lipid distribution in gynoecial medial domain cells. The results indicate that the simultaneous loss of NTT and STK activity affects polysaccharide and lipid deposition and septum fusion, and delays entry of septum cells to their normal degradation program. Furthermore, we identified KAWAK, a direct target of NTT and STK, which is required for the correct formation of fruits in Arabidopsis. These findings position NTT and STK as important factors in determining reproductive competence.

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“…One of the topics which started to be tackled recently [ 36 , 37 ] and that will be surely further explored is the possible role of the TT regulators in affecting gene expression patterns of TT cell wall polysaccharides [ 73 ], since cell wall remodeling plays an essential role during PT growth along this tissue, being directly related to its nutritional, supportive, and guiding roles.…”

Section: Key To the Highway: Pollen–pistil Interactions In The Ttmentioning

confidence: 99%

Paving the Way for Fertilization: The Role of the Transmitting Tract

Pereira

Moreira

Coimbra

et al. 2021

IJMS

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Angiosperm reproduction relies on the precise growth of the pollen tube through different pistil tissues carrying two sperm cells into the ovules’ embryo sac, where they fuse with the egg and the central cell to accomplish double fertilization and ultimately initiate seed development. A network of intrinsic and tightly regulated communication and signaling cascades, which mediate continuous interactions between the pollen tube and the sporophytic and gametophytic female tissues, ensures the fast and meticulous growth of pollen tubes along the pistil, until it reaches the ovule embryo sac. Most of the pollen tube growth occurs in a specialized tissue—the transmitting tract—connecting the stigma, the style, and the ovary. This tissue is composed of highly secretory cells responsible for producing an extensive extracellular matrix. This multifaceted matrix is proposed to support and provide nutrition and adhesion for pollen tube growth and guidance. Insights pertaining to the mechanisms that underlie these processes remain sparse due to the difficulty of accessing and manipulating the female sporophytic tissues enclosed in the pistil. Here, we summarize the current knowledge on this key step of reproduction in flowering plants with special emphasis on the female transmitting tract tissue.

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Exploring Cell Wall Composition and Modifications During the Development of the Gynoecium Medial Domain in Arabidopsis

Cited by 32 publications

References 59 publications

Plant Cell Walls Tackling Climate Change: Biotechnological Strategies to Improve Crop Adaptations and Photosynthesis in Response to Global Warming

Plant Cell Walls Tackling Climate Change: Biotechnological Strategies to Improve Crop Adaptations and Photosynthesis in Response to Global Warming

New roles of NO TRANSMITTING TRACT and SEEDSTICK during medial domain development in Arabidopsis fruits

Paving the Way for Fertilization: The Role of the Transmitting Tract

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