Hormonal treatment of the bark of rubber trees (Hevea brasiliensis) increases latex yield through latex dilution in relation with the differential expression of two aquaporin genes

Tungngoen, Kessarin; Viboonjun, Unchera; Kongsawadworakul, Panida; Katsuhara, Maki; Julien, Jean Louis; Sakr, Soulaïman; Chrestin, Hervé; Narangajavana, Jarunya

doi:10.1016/j.jplph.2010.06.009

Cited by 48 publications

(39 citation statements)

References 43 publications

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“…A similar regulation of other aquaporin genes expression by ABA, such as TaNIP from wheat [84], HbPIP2;1 and HbTIP1;1 from rubber trees [85], NtAQP1, NtPIP1;1 and NtPIP2;1 from Nicotiana [86], and ZmPIPs from Zea mays [87], has been reported, supporting the idea that FaNIP1;1 could participate in water uptake and distribution during ripening in response to the increase of the ABA content inside the strawberry receptacle cells.…”

Section: 2supporting

confidence: 71%

“…Thus, FaNIP1;1 expression increased when the achenes were removed from the strawberry receptacle. Regulation by auxins has been described and demonstrated for several aquaporins genes as FaPIP1;1 gene, which has been related to the strawberry ripening process [20]; HbPIP2;1, HbTIP1;1 and HbPIP1;1, from rubber trees, related with the latex production [85]; and other aquaporins related to cellular water flux during leaf unfolding in tobacco or the gravitropic bending of leaf in rice [92,93]. Thus, the dual regulation for both hormones of FaNIP1;1 support the idea that the ABA/auxin ratio is the signal that could actually trigger strawberry fruit ripening supporting the proposal of Perkins-Veazie [63] and the findings described in Jia et al [1], Medina-Puche et al [3] and Chai et al [64].…”

Section: Auxins Regulate Fanip1;1 Expressionmentioning

confidence: 99%

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Functional characterization of FaNIP1;1 gene, a ripening-related and receptacle-specific aquaporin in strawberry fruit

et al. 2015

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Section: 2supporting

confidence: 71%

Section: Auxins Regulate Fanip1;1 Expressionmentioning

confidence: 99%

Functional characterization of FaNIP1;1 gene, a ripening-related and receptacle-specific aquaporin in strawberry fruit

et al. 2015

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“…5). It was interesting to detect a high expression of several HbPLYs in latex since ABA signalling maybe to participate in latex and rubber production24. Some genes involved in rubber biosynthesis in latex were up-regulated by ABA (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Ethylene (ET) is widely applied regularly on the trunk of rubber trees to stimulate latex production2223. ABA treated rubber trees exhibited earlier significant response, leading to 4.3-fold significant increases in latex yield24, suggesting latex production maybe be also regulated by ABA signalling. SRPP is a major component of latex and clearly participates in the biosynthesis of natural rubber1725.…”

mentioning

confidence: 99%

Identification and characterization of the abscisic acid (ABA) receptor gene family and its expression in response to hormones in the rubber tree

Guo

Zhou²,

et al. 2017

Sci Rep

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Abscisic acid (ABA) is an essential phytohormone involved in diverse physiological processes. Although genome-wide analyses of the ABA receptor PYR/PYL/RCAR (PYL) protein/gene family have been performed in certain plant species, little is known about the ABA receptor protein/gene family in the rubber tree (Hevea brasiliensis). In this study, we identified 14 ABA receptor PYL proteins/genes (designated HbPYL1 through HbPYL14) in the most recent rubber tree genome. A phylogenetic tree was constructed, which demonstrated that HbPYLs can be divided into three subfamilies that correlate well with the corresponding Arabidopsis subfamilies. Eight HbPYLs are highly expressed in laticifers. Five of the eight genes are simultaneously regulated by ABA, jasmonic acid (JA) and ethylene (ET). The identification and characterization of HbPYLs should enable us to further understand the role of ABA signal in the rubber tree.

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“…In rubber, ethephon increases both the metabolic pathways of rubber biosynthesis and water flow towards the laticifer cells, hence prolonging latex flow through a dilution process that delays coagulation (Coupé and Chrestin 1989;Tungngoen et al 2011). Both processes are also possible in gum production by A. senegal.…”

Section: Discussionmentioning

confidence: 99%

Ethephon: a tool to boost gum arabic production from Acacia senegal and to enhance gummosis processes

Abib

Ntoupka²,

Peltier

et al. 2012

Agroforest Syst

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Gum arabic production from Acacia senegal is lower in sub-humid areas than arid areas. Water stress is thought to be the reason for higher yields in arid areas. The application of ethephon is thought to mimic the effect of water stress in other plants. The objective of this study was to determine if the application of ethephon would increase the gum yields of Acacia senegal under sub-humid conditions in Cameroon. Trees receiving 40 or 120 mg ethephon were compared to controls in field experiments at a semi-arid and a sub-humid location in Northern Cameroon, over two seasons. Two provenances from drier areas (Sudan) were compared to the local one. In the first season, gum yield of the local provenance treated with ethephon was increased by 400-600 % compared to the untreated trees. Gum yield at the semi-arid location was 77, 313 and 214 g/tree with 0, 40 and 120 mg ethephon/tree, respectively, while at the sub-humid location, it was 30, 186 and 114 g/tree with 0, 40 and 120 mg ethephon/tree. However, in the second season, the effect of ethephon was not significant in the semi-arid area, whereas it was evident in the sub-humid area (up to 478 g/tree). Moreover, ethephon did not affect gum yield of provenances from drier areas (Sudan). This showed that the water-stress hypothesis has to be refined. The development of ethephon-based tapping systems is promising, but requires further studies with a wider range of environmental conditions and A. senegal provenances.

show abstract

Hormonal treatment of the bark of rubber trees (Hevea brasiliensis) increases latex yield through latex dilution in relation with the differential expression of two aquaporin genes

Cited by 48 publications

References 43 publications

Functional characterization of FaNIP1;1 gene, a ripening-related and receptacle-specific aquaporin in strawberry fruit

Functional characterization of FaNIP1;1 gene, a ripening-related and receptacle-specific aquaporin in strawberry fruit

Identification and characterization of the abscisic acid (ABA) receptor gene family and its expression in response to hormones in the rubber tree

Ethephon: a tool to boost gum arabic production from Acacia senegal and to enhance gummosis processes

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