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Article: Molecular Analysis of Drought Tolerance in Guava Based on In Vitro PEG Evaluation

Abouzaid, Eman / El-Sayed A. Mohamed / El-Sayed N. El-Sayed / Muhammad Youssef

Tropical plant biology. 2016 June, v. 9, no. 2

2016

Abstract: Forty landraces of guava were subjected to drought tolerance evaluation based on in vitro polyethylene glycol (PEG) treatment. Nodal stem segments with lateral buds were used as explant. Five concentrations (i.e. 0, 4, 6, 8 and 10Â %) of PEG were tested, ...

Abstract	Forty landraces of guava were subjected to drought tolerance evaluation based on in vitro polyethylene glycol (PEG) treatment. Nodal stem segments with lateral buds were used as explant. Five concentrations (i.e. 0, 4, 6, 8 and 10Â %) of PEG were tested, among which the optimum concentration for screening was determined as 8Â %. Analysis of variance showed highly significant variation among the tested landraces, concentrations of PEG and the interaction between them in the percentage of response (%R), number of shoot per explant (NSE) and drought susceptibility index. The average percentage of reduction due to PEG treatment was 48.30 and 52.57Â % for the %R and NSE, respectively. Heritability and genetic advance were increased due to drought stress for %R, while they were decreased for NSE, indicating that %R was more related to drought stress than NSE. The molecular analysis of the highest and lowest responsive landraces was performed using sequence related amplified polymorphism (SRAP) and inter-simple sequence repeats (ISSR). Both markers were effective in discriminating the tested landraces and completely separated them into two clusters related to %R under PEG. ISSR showed a higher percentage of polymorphism, polymorphic information content and diversity index compared with SRAP. However, SRAP was more effective than ISSR in showing a higher primer resolving power and a number of unique specific bands for drought tolerance and susceptibility. Drought in vitro evaluation method established here is effective, inexpensive and manageable in genotype screening for drought tolerance in guava and could be used in other woody plant species.
Keywords	analysis of variance ; buds ; drought ; drought tolerance ; genetic improvement ; genotype ; guavas ; heritability ; in vitro studies ; landraces ; microsatellite repeats ; polyethylene glycol ; screening ; water stress ; woody plants
Language	English
Dates of publication	2016-06
Size	p. 73-81.
Publishing place	Springer US
Document type	Article
ZDB-ID	2455624-5
ISSN	1935-9764 ; 1935-9756
ISSN (online)	1935-9764
ISSN	1935-9756
DOI	10.1007/s12042-016-9164-5
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Search for the rare decays K(L)→π0π0μ+μ- and K(L)→π0π0X0→π0π0μ+μ-.

Abouzaid, E / Arenton, M / Barker, A R / Bellantoni, L / Blucher, E / Bock, G J / Cheu, E / Coleman, R / Corcoran, M D / Cox, B / Erwin, A R / Escobar, C O / Glazov, A / Golossanov, A / Gomes, R A / Gouffon, P / Hsiung, Y B / Jensen, D A / Kessler, R /

Kotera, K / Ledovskoy, A / McBride, P L / Monnier, E / Nguyen, H / Niclasen, R / Phillips, D G / Ping, H / Ramberg, E J / Ray, R E / Ronquest, M / Santos, E / Slater, W / Smith, D / Solomey, N / Swallow, E C / Toale, P A / Tschirhart, R / Velissaris, C / Wah, Y W / Wang, J / White, H B / Whitmore, J / Wilking, M J / Winston, R / Worcester, E T / Worcester, M / Yamanaka, T / Zimmerman, E D / Zukanovich, R F

Physical review letters

2011 Volume 107, Issue 20, Page(s) 201803

Abstract: The KTeV E799 experiment has conducted a search for the rare decays, K(L)→π(0)π(0)μ(+)μ(-) and K(L)→π(0)π(0)X(0)→π(0)π(0)μ(+)μ(-), where the X(0) is a possible new neutral boson that was reported by the HyperCP experiment with a mass of (214.3 ± 0.5) MeV/ ...

Abstract	The KTeV E799 experiment has conducted a search for the rare decays, K(L)→π(0)π(0)μ(+)μ(-) and K(L)→π(0)π(0)X(0)→π(0)π(0)μ(+)μ(-), where the X(0) is a possible new neutral boson that was reported by the HyperCP experiment with a mass of (214.3 ± 0.5) MeV/c(2). We find no evidence for either decay. We obtain upper limits of Br(K(L)→π(0)π(0)X(0)→π(0)π(0)μ(+)μ(-)) < 1.0 × 10(-10) and Br(K(L)→π(0)π(0)μ(+)μ(-)) < 9.2 × 10(-11) at the 90% confidence level. This result rules out the pseudoscalar X(0) as an explanation of the HyperCP result under the scenario that the dsX(0) coupling is completely real.
Language	English
Publishing date	2011-11-11
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.107.201803
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Determination of the parity of the neutral pion via its four-electron decay.

Kotera, K / Ledovskoy, A / McBride, P L / Monnier, E / Nguyen, H / Niclasen, R / Phillips, D G / Ramberg, E J / Ray, R E / Ronquest, M / Santos, E / Slater, W / Smith, D / Solomey, N / Swallow, E C / Toale, P A / Tschirhart, R / Wah, Y W / Wang, J / White, H B / Whitmore, J / Wilking, M J / Winstein, B / Winston, R / Worcester, E T / Yamanaka, T / Zimmerman, E D / Zukanovich, R F

Physical review letters

2008 Volume 100, Issue 18, Page(s) 182001

Abstract: We present a new determination of the parity of the neutral pion via the double Dalitz decay pi0-->e+e-e+e-. Our sample, which consists of 30,511 candidate decays, was collected from KL-->pi0pi0pi0 decays in flight at the KTeV-E799 experiment at Fermi ... ...

Abstract	We present a new determination of the parity of the neutral pion via the double Dalitz decay pi0-->e+e-e+e-. Our sample, which consists of 30,511 candidate decays, was collected from KL-->pi0pi0pi0 decays in flight at the KTeV-E799 experiment at Fermi National Accelerator Laboratory. We confirm the negative pi0 parity and place a limit on scalar contributions to the pi0-->e+e-e+e- decay amplitude of less than 3.3% assuming CPT conservation. The pi0gammagamma form factor is well described by a momentum-dependent model with a slope parameter fit to the final state phase-space distribution. Additionally, we have measured the branching ratio of this mode to be B(pi0-->e+e-e+e-)=(3.26+/-0.18)x10(-5).
Language	English
Publishing date	2008-05-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.100.182001
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Search for lepton-flavor-violating decays of the neutral kaon.

Abouzaid, E / Arenton, M / Barker, A R / Bellantoni, L / Bellavance, A / Blucher, E / Bock, G J / Cheu, E / Coleman, R / Corcoran, M D / Cox, B / Erwin, A R / Escobar, C O / Glazov, A / Golossanov, A / Gomes, R A / Gouffon, P / Hsiung, Y B / Jensen, D A /

Kessler, R / Kotera, K / Ledovskoy, A / McBride, P L / Monnier, E / Nguyen, H / Niclasen, R / Ii, D G Phillips / Ping, H / Ramberg, E J / Ray, R E / Ronquest, M / Santos, E / Slater, W / Smith, D / Solomey, N / Swallow, E C / Toale, P A / Tschirhart, R / Wah, Y W / Wang, J / White, H B / Whitmore, J / Wilking, M J / Winstein, B / Winston, R / Wolfe, C / Worcester, E T / Worcester, M / Yamanaka, T / Zimmerman, E D / Zukanovich, R F

Physical review letters

2008 Volume 100, Issue 13, Page(s) 131803

Abstract: The Fermilab KTeV experiment has searched for lepton-flavor-violating decays of the K(L) meson in three decay modes. We observe no events in the signal region for any of the modes studied, and we set the following upper limits for their branching ratios ... ...

Abstract	The Fermilab KTeV experiment has searched for lepton-flavor-violating decays of the K(L) meson in three decay modes. We observe no events in the signal region for any of the modes studied, and we set the following upper limits for their branching ratios at the 90% C.L.: BR(K(L) --> pi(0) micro(+/-) e(-/+)) <7.6 x 10(-11); BR(K(L) --> pi(0)pi(0) micro(+/-) e(-/+)) <1.7 x 10(-10); BR(pi(0) --> micro(+/-) e(-/+)) <3.6 x 10(-10). This result represents a factor of 82 improvement in the branching ratio limit for K(L) --> pi(0) micro(+/-) e(-/+) and is the first reported limit for K(L) --> pi(0)pi(0) micro(+/-) e(-/+).
Language	English
Publishing date	2008-04-04
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.100.131803
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: First observation of K{L}-->pi{+/-}e{-/+}nue{+}e{-}.

Kotera, K / Ledovskoy, A / McBride, P L / Monnier, E / Nelson, K S / Nguyen, H / Niclasen, R / Phillips, D G / Ping, H / Ramberg, E J / Ray, R E / Ronquest, M / Santos, E / Slater, W / Smith, D / Solomey, N / Swallow, E C / Toale, P A / Tschirhart, R / Velissaris, C / Wah, Y W / Wang, J / White, H B / Whitmore, J / Wilking, M J / Winstein, B / Winston, R / Worcester, E T / Worcester, M / Yamanaka, T / Zimmerman, E D / Zukanovich, R F

Physical review letters

2007 Volume 99, Issue 8, Page(s) 81803

Abstract: This Letter is the first report of the K{L}-->pi{+/-}e{-/+}nue{+}e{-} decay. Based on 19 208+/-144 events, we determine the branching fraction, B(K{L}-->pi{+/-}e{-/+}nue{+}e{-}M_{e{+}e{-}}>5 MeV/c{2},E{e{+}e{-}}{*}>30 MeV)=(1.285+/-0.041)x10{-5}, and ... ...

Abstract	This Letter is the first report of the K{L}-->pi{+/-}e{-/+}nue{+}e{-} decay. Based on 19 208+/-144 events, we determine the branching fraction, B(K{L}-->pi{+/-}e{-/+}nue{+}e{-}M_{e{+}e{-}}>5 MeV/c{2},E{e{+}e{-}}{*}>30 MeV)=(1.285+/-0.041)x10{-5}, and Gamma(K{e3ee}M{e{+}e{-}}>5 MeV/c{2})/Gamma(K{e3})=[4.57+/-0.04(stat)+/-0.14(syst)]x10{-5}. This ratio agrees with a theoretical prediction based on chiral perturbation theory (ChPT) calculated to O(p{4}). The measured kinematical distributions agree with those predicted by just ChPT O(p{4}), but show significant disagreement with ones predicted by leading-order ChPT.
Language	English
Publishing date	2007-08-24
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.99.081803
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Measurements of the decay KL-->e+ e- gamma.

Abouzaid, E / Arenton, M / Barker, A R / Bellantoni, L / Blucher, E / Bock, G J / Cheu, E / Coleman, R / Corcoran, M D / Cox, B / Erwin, A R / Glazov, A / Golossanov, A / Hsiung, Y B / Jensen, D A / Kessler, R / Kobrak, H G E / Kotera, K / LaDue, J /

Ledovskoy, A / McBride, P L / Monnier, E / Nguyen, H / Niclasen, R / Ramberg, E J / Ray, R E / Ronquest, M / Shields, J / Slater, W / Smith, D / Solomey, N / Swallow, E C / Toale, P A / Tschirhart, R / Wah, Y W / Wang, J / White, H B / Whitmore, J / Wilking, M J / Winston, R / Worcester, E T / Yamanaka, T / Zimmerman, E D

Physical review letters

2007 Volume 99, Issue 5, Page(s) 51804

Abstract: The E799-II (KTeV) experiment at Fermilab has collected 83 262 K(L)-->e+ e- gamma(gamma) events above a background of 79 events. We measure a decay width, normalized to the K(L)-->pi0pi0pi(D)0 (pi0-->gammagamma, pi0-->gammagamma, pi(D0-->e+ e- gamma( ... ...

Abstract	The E799-II (KTeV) experiment at Fermilab has collected 83 262 K(L)-->e+ e- gamma(gamma) events above a background of 79 events. We measure a decay width, normalized to the K(L)-->pi0pi0pi(D)0 (pi0-->gammagamma, pi0-->gammagamma, pi(D0-->e+ e- gamma(gamma)) decay width, of Gamma(K(L)-->e+e-gamma(gamma))/Gamma(K(L)-->pi0pi0pi(D)0)=(1.3302+/-0.0046(stat)+/-0.0102(syst)) x 10(-3). We also measure parameters of two K(L)gammagamma form factor models. In the Bergström-Massó-Singer parametrization, we find Calpha(K)= -0.517 +/- 0.030(stat) +/- 0.022(syst). We separately fit for the first parameter of the D'Ambrosio-Isidori-Portolés model and find alpha(DIP)= -1.729 +/- 0.043(stat) +/- 0.028(syst).
Language	English
Publishing date	2007-08-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.99.051804
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Measurement of the K0 charge radius and a CP-violating asymmetry and a search for CP-violating E1 direct photon emission in the rare decay KL--> pi+ pi- e+ e-.

Abouzaid, E / Arenton, M / Barker, A R / Bellantoni, L / Bellavance, A / Blucher, E / Bock, G J / Cheu, E / Coleman, R / Corcoran, M D / Corti, G / Cox, B / Erwin, A R / Escobar, C O / Glazov, A / Golossanov, A / Gomes, R A / Gouffon, P / Hanagaki, K /

Hsiung, Y B / Huang, H / Jensen, D A / Kessler, R / Kotera, K / Ledovskoy, A / McBride, P L / Monnier, E / Nelson, K S / Nguyen, H / Niclasen, R / Ping, H / Qi, X R / Ramberg, E J / Ray, R E / Ronquest, M / Santos, E / Shields, J / Slater, W / Smith, D / Solomey, N / Swallow, E C / Toale, P A / Tschirhart, R / Velissaris, C / Wah, Y W / Wang, J / White, H B / Whitmore, J / Wilking, M / Winstein, B / Winston, R / Worchester, E T / Worchester, M / Yamanaka, T / Zimmerman, E D / Zukanovich, R F

Physical review letters

2006 Volume 96, Issue 10, Page(s) 101801

Abstract: Using the complete KTeV data set of 5,241 candidate K(L)--> pi(+) pi(-) e(+) e(-) decays (including an estimated background of 204 +/- 14 events), we have measured the coupling g(CR)= 0.163 +/- 0.0149(stat) +/- 0.023(syst) of the CP conserving charge ... ...

Abstract	Using the complete KTeV data set of 5,241 candidate K(L)--> pi(+) pi(-) e(+) e(-) decays (including an estimated background of 204 +/- 14 events), we have measured the coupling g(CR)= 0.163 +/- 0.0149(stat) +/- 0.023(syst) of the CP conserving charge radius process and from it determined a K(0) charge radius of <r(2)(K(0))> = [-0.077 +/- 0.007(stat) +/- 0.011(syst)]fm(2). We have determined a first experimental upper limit of 0.04 (90% C.L.) /g(e1)/ / /g(M1)/ of the couplings for the E1 and M1 direct photon emission processes. We also report the measurement of /g(M1)/ including a vector form factor /g(M1)/(1 + (a(1)/a(2))/((M(2)(p)-(M(2)(k))= 2M(K)E(gamma*)), where vector /g(M1)/= 1.11+/- 0.12(stat) +/- 0.08(syst) and a(1)/a(2) = [-0.744 +/- 0.027(stat) +/- 0.032(syst)] GeV(2)/c(2). Finally, a CP-violating asymmetry of [13.6 +/- 1.4(stat) +/- 1.5(syst)]% in the CP and T odd angle phi between the decay planes of the e(+) e(-) and pi(+) pi(-) pairs in the K(L) center of mass is reported.
Language	English
Publishing date	2006-03-17
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.96.101801
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Observation of the decay xi0 --> sigma+ mu- nu(mu).

Abouzaid, E / Alexopoulos, T / Arenton, M / Barbosa, R F / Barker, A R / Bellantoni, L / Bellavance, A / Blucher, E / Bock, G J / Cheu, E / Coleman, R / Corcoran, M D / Cox, B / Erwin, A R / Escobar, C O / Glazov, A / Golossanov, A / Gomes, R A / Gouffon, P /

Hanagaki, K / Hsiung, Y B / Huang, H / Jensen, D A / Kessler, R / Kotera, K / LaDue, J / Ledovskoy, A / McBride, P L / Monnier, E / Nelson, K S / Nguyen, H / Niclasen, R / Ping, H / Prasad, V / Qi, X R / Ramberg, E J / Ray, R E / Ronquest, M / Santos, E / Shields, J / Slater, W / Smith, D / Solomey, N / Swallow, E C / Toale, P A / Tschirhart, R / Velissaris, C / Wah, Y W / Wang, J / White, H B / Whitmore, J / Wilking, M / Winstein, B / Winston, R / Worcester, E T / Worcester, M / Yamanaka, T / Zimmerman, E D / Zukanovich, R F

Physical review letters

2005 Volume 95, Issue 8, Page(s) 81801

Abstract: The xi0 muon semileptonic decay has been observed for the first time with nine identified events using the KTeV beam line and detector at Fermilab. The decay is normalized to the xi0 beta decay mode and yields a value for the ratio of decay rates gamma( ... ...

Abstract	The xi0 muon semileptonic decay has been observed for the first time with nine identified events using the KTeV beam line and detector at Fermilab. The decay is normalized to the xi0 beta decay mode and yields a value for the ratio of decay rates gamma(xi0 --> sigma+ mu- nu(mu))/gamma(xi0 --> sigma+ e- nu(e)) of [1.8(-0.5)(+0.7)(stat) +/- 0.2(syst)] x 10(-2). This is in agreement with the SU(3) flavor symmetric quark model.
Language	English
Publishing date	2005-08-19
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.95.081801
Database	MEDical Literature Analysis and Retrieval System OnLINE

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