2020
DOI: 10.1038/s41438-020-00397-8
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The role of arabinogalactan proteins (AGPs) in fruit ripening—a review

Abstract: Arabinogalactan proteins (AGPs) are proteoglycans challenging researchers for decades. However, despite the extremely interesting polydispersity of their structure and essential application potential, studies of AGPs in fruit are limited, and only a few groups deal with this scientific subject. Here, we summarise the results of pioneering studies on AGPs in fruit tissue with their structure, specific localization pattern, stress factors influencing their presence, and a focus on recent advances. We discuss the… Show more

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Cited by 43 publications
(30 citation statements)
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“…Given that this continuum can be compromised during abiotic stress, the up-regulated AGPs are believed to form a ‘buffer zone’ that stabilizes the membrane by preventing its direct interaction with the cell wall ( Lamport et al , 2006 ). Indeed, a decrease in AGP epitopes and their rearrangement have been linked to the disruption of the membrane–wall continuum in senescing fruits ( Leszczuk et al , 2020 ). AGPs have also been postulated as cell wall plasticizers ( Lamport et al , 2006 ) and may perform a similar role to that of the aforementioned RG-I side chains during dehydration.…”
Section: Functional Relations Between Cell Wall Components and Respon...mentioning
confidence: 99%
“…Given that this continuum can be compromised during abiotic stress, the up-regulated AGPs are believed to form a ‘buffer zone’ that stabilizes the membrane by preventing its direct interaction with the cell wall ( Lamport et al , 2006 ). Indeed, a decrease in AGP epitopes and their rearrangement have been linked to the disruption of the membrane–wall continuum in senescing fruits ( Leszczuk et al , 2020 ). AGPs have also been postulated as cell wall plasticizers ( Lamport et al , 2006 ) and may perform a similar role to that of the aforementioned RG-I side chains during dehydration.…”
Section: Functional Relations Between Cell Wall Components and Respon...mentioning
confidence: 99%
“…Recently, a lot of attention has been paid to AGPs and their involvement in apple fruit ripening [ 225 ]. It was shown that AGPs are spatio-temporarily related to fruit ripening and correlated with cell wall reorganization, according to immunolocalization studies [ 226 , 227 ].…”
Section: Developmental Consequences Of Glycosylation: From Flowers To Germinating Seedsmentioning
confidence: 99%
“…AGPs mark critical cell fate transitions [47] in both sporophyte and gametophyte generations. Thus, judging from extensive cytochemical studies, seed germination, vegetative growth, flowering, fertilization [48], embryogenesis [49][50][51], phyllotaxis [52] and fruit ripening [53] all involve AGPs. However structural elucidation of Hyp glycosubstituents was lacking.…”
Section: Indirect Evidence For the Role Of Agps In Ca 2+ Homeostasismentioning
confidence: 99%