Rice Sesquiterpene Plays Important Roles in Antixenosis against Brown Planthopper in Rice

Kamolsukyeunyong, Wintai; Sukhaket, Wissarut; Pitija, Kitsada; Thorngkham, Pornwalai; Mahatheeranont, Sugunya; Toojinda, Theerayut; Vanavichit, Apichart

doi:10.3390/plants10061049

Cited by 6 publications

(8 citation statements)

References 26 publications

(34 reference statements)

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“…This did not occur in three hybrids (IR80814H, IR81954H, and IR81955H) that showed heterobeltiosis for resistance, thereby further suggesting that quantitative resistance to planthoppers is achievable through the careful selection of parental lines. In our oviposition experiments, plant size affected one of two cases of heterosis for antixenosis resistance; suggesting that there was little effect of breeding on other factors, such as plant volatiles or silicon-based defenses [ 48 , 49 , 50 , 51 , 52 , 53 , 54 ] that are involved in antixenosis resistance. The experiments indicate the importance of separating physiologically-dependent susceptibility (e.g., related to size, growth rates, etc.)…”

Section: Discussionmentioning

confidence: 86%

Heterosis for Resistance to Insect Herbivores in a 3-Line Hybrid Rice System

Horgan,

Bernal,

Ramal

et al. 2024

Insects

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Three-line hybrid rice is produced by crossing male sterile (A line) rice with a fertility-restorer (R line). Fertile lines (B lines) are also required to maintain A line seed for breeding programs. We used a range of hybrids and their parental lines to assess the frequency and nature of heterosis for resistance to the whitebacked planthopper (Sogatella furcifera), brown planthopper (Nilaparvata lugens) and yellow stemborer (Scirpophaga incertulas). Heterosis is defined as trait improvement above the average of the parental lines as a result of outbreeding. Based on the results from a greenhouse study that challenged hybrids and their parental lines with each herbivore species, we found that susceptibility to planthoppers was associated with one of the eight A lines tested, but resistance was improved by crossing with a relatively resistant restorer. Higher frequencies of heterosis for susceptibility in comparisons between hybrids and their B lines suggest that susceptibility was not related to the cytoplasmic genomes of the associated sterile A lines. Furthermore, because none of the parental lines possessed currently effective resistance genes, improved resistance against planthoppers was probably due to quantitative resistance. In a related field trial, hybrids had generally higher yields than their fertile parents and often produced larger grain; however, they were often more susceptible to stemborers, leaffolders (Cnaphalocrocis medinalis) and other caterpillars (Rivula atimeta). This was largely a consequence of hybrid heterosis for plant biomass and was strongly affected by crop duration. We make a series of recommendations to improve hybrid breeding to reduce the risks of herbivore damage.

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Section: Discussionmentioning

confidence: 86%

Heterosis for Resistance to Insect Herbivores in a 3-Line Hybrid Rice System

Horgan,

Bernal,

Ramal

et al. 2024

Insects

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“…Those studies revealed that RH had antixenosis and antibiosis mechanism of resistance to BPH. These characteristics are relevant to the Sesquiterpene Synthase gene that performs a common role in response to herbivore attacks on rice plants [ 25 , 61 ]. Interestingly, RH was reported to release the major sesquiterpenes induced by BPH as follows: β-ionone, β-ionone epoxide, E-β-farnesene, and linalool within 10 days of BPH infestation [ 61 ].…”

Section: Discussionmentioning

confidence: 99%

“…These characteristics are relevant to the Sesquiterpene Synthase gene that performs a common role in response to herbivore attacks on rice plants [ 25 , 61 ]. Interestingly, RH was reported to release the major sesquiterpenes induced by BPH as follows: β-ionone, β-ionone epoxide, E-β-farnesene, and linalool within 10 days of BPH infestation [ 61 ]. Our experiments did not find those compounds in the volatile collecting chamber within 3 h of BPH infestation.…”

Section: Discussionmentioning

confidence: 99%

Mechanisms of Trichomes and Terpene Compounds in Indigenous and Commercial Thai Rice Varieties against Brown Planthopper

Khetnon

Busarakam

Sukhaket

et al. 2022

Insects

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Plant trichomes generally act as a physical defense against herbivore attacks and are present in a variety of plants, including rice plants. This research examined the physical and chemical defenses of rice plants against the brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae). A total of 10 rice varieties were used in this study. An electron microscope was used to observe trichomes. Constitutive and induced volatile compound profiles were assessed using GC-MS analyses. The preference of BPH for volatiles from the 10 rice plants was tested using a two-choice arena olfactometer system. The density of prickle trichomes had a negative relationship with the BPH injury level. Without BPH infestation, the volatile of the most resistant rice variety (Rathu Heenati (RH)) was preferred by BPH than those of the other varieties, with the exception of Gled Plah Chawn. However, the relative BPH preference for volatiles from the RH variety decreased during BPH infestation. When rice plants were infested by BPH, the numbers of VOCs and these quantities decreased. In the RH variety, the emission of essentities found without BPH infestation ceased during infestation by BPH. During the BPH infestation, rice plants started to emit new VOCs that were not detected before the BPH infestation started. In conclusion, we discovered that rice plants defended against BPH by changing VOC components during BPH infestation and β-Sesquiphellandrene was likely the most effective component.

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“…Polyphenols are well known to have strong antioxidant activities [23]. Although found in less amount, terpenes [24] or sesquiterpenes [25] in rice could also contribute antioxidant activities.…”

Section: Total Phenolic Concentration (Tpc) and Total Flavonoid Content (Tfc)mentioning

confidence: 99%

Evaluating the Antioxidants, Whitening and Antiaging Properties of Rice Protein Hydrolysates

Chen

Dai²,

Chen

et al. 2021

Molecules

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Plant-derived protein hydrolysates have potential applications in nutrition. Rice protein hydrolysates (RPHs), an excellent source of proteins, have attracted attention for the development of cosmeceuticals. However, few studies have reported the potential application of RPH in analysis, and this study examined their antioxidant activities and the inhibitory activities of skin aging enzymes. The results indicated that the total phenolic and flavonoid concentrations were 2.06 ± 0.13 mg gallic acid equivalent/g RPHs and 25.96 ± 0.52 µg quercetin equivalent/g RPHs, respectively. RPHs demonstrated dose-dependent activity for scavenging free radicals from 1,1-diphenyl-2-picrylhydrazyl [half-maximal inhibitory concentration (IC50) = 42.58 ± 2.1 mg/g RPHs] and 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (IC50 = 2.11 ± 0.88 mg/g RPHs), dose-dependent reduction capacity (6.95 ± 1.40 mg vitamin C equivalent/g RPHs) and oxygen radical absorbance capacity (473 µmol Trolox equivalent/g RPHs). The concentrations of the RPH solution required to achieve 50% inhibition of hyaluronidase and tyrosinase activities were determined to be 8.91 and 107.6 mg/mL, respectively. This study demonstrated that RPHs have antioxidant, antihyaluronidase, and antityrosinase activities for future cosmetic applications.

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Rice Sesquiterpene Plays Important Roles in Antixenosis against Brown Planthopper in Rice

Cited by 6 publications

References 26 publications

Heterosis for Resistance to Insect Herbivores in a 3-Line Hybrid Rice System

Heterosis for Resistance to Insect Herbivores in a 3-Line Hybrid Rice System

Mechanisms of Trichomes and Terpene Compounds in Indigenous and Commercial Thai Rice Varieties against Brown Planthopper

Evaluating the Antioxidants, Whitening and Antiaging Properties of Rice Protein Hydrolysates

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