scholarly journals Leaf apoplastic alkalisation promotes transcription of the ABA synthesising enzyme Vp14 and stomatal closure in Zea mays L

2020 ◽  
Author(s):  
Christoph-Martin Geilfus ◽  
Xudong Zhang ◽  
Axel Mithöfer ◽  
Lisa Burgel ◽  
Gyöngyi Bárdos ◽  
...  
Keyword(s):  
Zea Mays ◽  
Plant Hormone ◽  
Zea Mays L ◽  
Stomatal Closure ◽  
Stomatal Aperture ◽  
Induced Responses ◽  
In Planta ◽  
Qrt Pcr ◽  
Chloride Salinity ◽  
Leaf Apoplast

Abstract The chloride component of NaCl-salinity causes the leaf apoplast to transiently alkalinize. This transition in pH reduces stomatal aperture. However, whether this apoplastic pH (pHapo) transient initiates stomatal closure by interacting with other chloride-stress-induced responses or whether the pH transient alone initiates stomatal closure is unknown. To clarify the problem, the transient alkalinization of the leaf apoplast was mimicked in intact maize (Zea mays L.) by infiltrating near-neutral pH buffers into the leaf apoplast. Effects of the pHapo transient could thus be investigated independently from other chloride-stress-derived effects. Microscopy-based ratiometric live pHapo-imaging was used to monitor pHapo  in planta. LC-MS/MS and real-time-qRT-PCR leaf analyses showed that the artificially induced pHapo transient led to an increase in the concentrations of the stomata-regulating plant hormone abscisic acid (ABA) and in transcripts of the key ABA-synthesizing gene ZmVp14 in the leaf. Since stomatal aperture and stomatal conductance decreased according to pHapo, we conclude that the pHapo transient alone initiates stomatal closure. Therefore, the functionality does not depend on interactions with other compounds induced by chloride-stress. Overall, our data indicate that the pH of the leaf apoplast links chloride-salinity with the control of stomatal aperture via effects exerted on the transcription of ABA.

The early stress response of maize ( Zea mays L.) to chloride salinity

2019 ◽  
Vol 205 (6) ◽  
pp. 586-597 ◽  
Author(s):  
Xudong Zhang ◽  
Christian Zörb ◽  
Markus Kränzlein ◽  
Bastian L. Franzisky ◽  
Hartmut Kaiser ◽  
...  
Keyword(s):  
Zea Mays ◽  
Stress Response ◽  
Zea Mays L ◽  
Early Stress ◽  
Chloride Salinity

Molecular cloning and structural analysis of a gene from Zea mays (L.) coding for a putative receptor for the plant hormone auxin.

1989 ◽  
Vol 8 (9) ◽  
pp. 2453-2461 ◽  
Author(s):  
T. Hesse ◽  
J. Feldwisch ◽  
D. Balshüsemann ◽  
G. Bauw ◽  
M. Puype ◽  
...  
Keyword(s):  
Zea Mays ◽  
Structural Analysis ◽  
Molecular Cloning ◽  
Plant Hormone ◽  
Zea Mays L ◽  
Putative Receptor

Mapping the anther culture response genes in maize (Zea mays L.)

Genome ◽  
1995 ◽  
Vol 38 (5) ◽  
pp. 968-975 ◽  
Author(s):  
V. H. Beaumont ◽  
T. R. Rocheford ◽  
J. M. Widholm
Keyword(s):  
Zea Mays ◽  
Anther Culture ◽  
Plant Hormone ◽  
Zea Mays L ◽  
Fragment Length Polymorphism ◽  
Rflp Analysis ◽  
Culture Process ◽  
Anther Culture Response ◽  
Chromosome Regions ◽  
Restriction Fragment Length

In order to map the genes conditioning the induction of embryos during our anther culture process, we evaluated F2 plants from three different crosses for their anther culture ability and also performed RFLP analysis on these plants. The results showed that six chromosomal regions appear to be associated with the ability to induce embryo-like structures from maize microspores. These regions are located on chromosomes 1 (two regions), 3, 5, 7, and 8. Some of these chromosomes are identical to those found in previous studies and we have localized the regions more precisely. Notably, all chromosome regions identified, except one, are near viviparous mutant loci. Since the viviparous mutations are known to involve the plant hormone abscisic acid (ABA), these results suggest that ABA or its antagonist, gibberellic acid (GA3), might somehow be related to anther culture ability. We also propose some combinations of probes to screen for anther culture ability in the three genotypes studied.Key words: restriction fragment length polymorphism, anther culture, gene mapping, Zea mays L.

scholarly journals Elucidating Cd-mediated distinct rhizospheric and in planta ionomic and physio-biochemical responses of two contrasting Zea mays L. cultivars

2021 ◽  
Vol 27 (2) ◽  
pp. 297-312
Author(s):  
Saghir Abbas ◽  
Muhammad Tariq Javed ◽  
Qasim Ali ◽  
Muhammad Sohail Akram ◽  
Kashif Tanwir ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
In Planta ◽  
Biochemical Responses

scholarly journals Effect of Nitrogen Nutritional Stress on some Mineral Nutrients and Photosynthetic Apparatus of Zea mays L. and Vigna unguiculata L.

2013 ◽  
Vol 5 (3) ◽  
pp. 376-382
Author(s):  
Akinbode Foluso OLOGUNDUDU ◽  
Adelusi Ajayi ADELUSI
Keyword(s):  
Zea Mays ◽  
Nutrient Solution ◽  
Vigna Unguiculata ◽  
Zea Mays L ◽  
Stomatal Closure ◽  
Photosynthetic Apparatus ◽  
Nutritional Stress ◽  
Magnesium Ion ◽  
Photosynthetic Parameters ◽  
Chlorophylls A And B

The study investigated the responses of maize (Zea mays L.) and cowpea (Vigna unguiculata L. Walp.) seedlings metabolic activities and photosynthetic apparatus to nitrogen nutritional stress. Germination of seeds was done using treated sand in sixty plastic pots and the seedlings were divided into four nutrient regimes. A group of the seedlings was nutrient stressed by administering 200 ml of complete nutrient solution minus nitrogen (-N) while the other groups were fed with five times (X5N) and ten times (X10N) the optimal concentration of nitrogen and the last regime was fed with full nutrient solution (FN). The photosynthetic parameters studied included chlorophylls ‘a’ and ‘b’ respectively; carotenes and xanthophyll while the mineral elements investigated include potassium, calcium and magnesium. The result of the growth analysis showed that nitrogen deficiency promotes an increase in the content of abscisic acid (ABA), causing stomatal closure and a reduction in photosynthesis. This explains the higher rate of leaf abscission in -N plants. A comparison of calcium ion and magnesium ion concentrations in both optimal and stressed conditions reveals that the two ions show antagonism in uptake. There is a correlation between nitrogen and magnesium accumulation as magnesium ion plays a vital role in chlorophyll biosynthesis, protein synthesis and photosynthesis. The pattern of accumulation of photosynthetic apparatus in both maize and cowpea follow a similar pattern. Chlorophyll a dictated the growth pattern of other photosynthetic apparatus in both Zea mays and Vigna unguiculata.

scholarly journals Pengaruh Rizobakteria Pemacu Tumbuh dan Toleran Kekeringan serta Kelimpahan dan Akitvitas Mikroba Tanah terhadap Tanaman Jagung (Zea mays L.)

Biospecies ◽  
2017 ◽  
Vol 10 (1) ◽  
Author(s):  
Hari KAPLI ◽  
Aris Tri WAHYUDI ◽  
Edi HUSEN
Keyword(s):  
Zea Mays ◽  
Plant Growth ◽  
Agricultural Land ◽  
Zea Mays L ◽  
Growth Parameters ◽  
Growth Promoter ◽  
In Planta ◽  
Dry Land ◽  
Drought Tolerant ◽  
Potential Land

Agricultural land in Indonesia was largely dominated by untapped potential land, almost of that potential land is dry land. Maize (Zea mays L.) is one of the staple crops that are known could be cultivated on dry land. Rizosphere has been known to containmicroorganisms that can improve the plant growth. In the previously study, we have screenedin vitro of rhizobacteria (6 isolates of Pseudomonas sp CRB and 7 isolates of Bacillus sp CR) as growth promoter of maize and drought tolerant. A total of 6 rhizobacterial formula were further applied in vivo in greenhouse to promote the growth of maize. In planta test on maize showed that formula CRB 19 and F3 (CR 83 + CRB 10) were the best formula that could enhance plant growth parameters under drought stress conditions. After that abundance and activities of microbe were analyzed by enumeration of total fungus, bacteria and actinomycetes, dehidrogease test, soil respiration test dan C-microbe test and those tests showed that formula CRB 19 and F3 (CR 83 + CRB 10) were the best formula.These formula could be recommended as inoculants of maize planted in dry land agriculture.   Keywords : drought tolerant,formulation, growth promoter, maize, rhizobacteria

Influence de l'âge sur les caractéristiques photosynthétiques de la feuille de maïs, Zea mays L

Agronomie ◽  
1982 ◽  
Vol 2 (2) ◽  
pp. 159-166 ◽  
Author(s):  
Olivier BETHENOD ◽  
Christine JACOB ◽  
Jean-Claude RODE ◽  
Jean-François MOROT-GAUDRY
Keyword(s):  
Zea Mays ◽  
Zea Mays L

PRODUKTIVITAS PUPUK ORGANIK TERHADAP HASIL TANAMAN JAGUNG (Zea mays L) DI TANAH MINERAL

1970 ◽  
Vol 3 (2) ◽  
pp. 318-326
Author(s):  
Yoyon Riono.
Keyword(s):  
Zea Mays ◽  
Zea Mays L

Penelitian tentang pengaruh pemberian produktivitas pupuk organik terhadap hasil Tanaman Jagung (Zea mays L) di tanah mineral penelitian ini di laksanakan pada bulan Februari sampai Mei, yang bertempat di Sungai Salak Kecsmstsn Tempuling Kabupaten Indragiri Hilir Provinsi Riau. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) yang disusun secara faktorial yang terdiri dari 2 faktor dan 3 ulangan. Faktor B adalah bokashi pupuk kandang yang terdiri dari 4 taraf yaitu B0 (tanpa pemberianpupuk kandang), B1 (5 ton/ha) dan B2 (10 tom/ ha), serta B3 (15 ton/ha) Parameter yang di amati adalah tinggi tanaman, panjang daun ke tujuh, berat brangkasan basah, berat berangkasan kering, berat tongkol pertanaman sampel, diameter tongkol , produksi per plot, dan berat 100 biji. Selanjutnya data yang di peroleh di olah secara statistik, apabila F hitung lebih besar dari F tabel di lanjutkan dengan uji lanjut Tukey HSD pada taraf 5%. Hasil penelitian menunjukan bahwa interaksi bokashi pupuk kandang dan varietas berpengaruh nyata terhadap berat tongkol dan produksi dan produksi per plot, akan tetapi tidak berpengaruh nyata terhadap tinggi tanaman, panjang daun ke tujuh, berat brangkasan basah, berat brangkasan kering , diameter tongkol dan berat 1000 biji. Untuk perlakuan bokashi pupuk kandang secara tunggal berpengaruh nyata terhadap terhadap diameter tongkol , akan tetapi tidak berpengaruh nyata terhadap tinggi tanaman, panjang daun ke tujuh, berat brangkasan basah, berat brangkasan kering, berat tongkol, produksi per plot, dan berat 1000 biji, perlakuan bokashi terbaik terdapat pada pemberian 15 ton/ha. Sedangkan perlakuan varietas secara tunggal berpengaruh nyata terhadap berat brangkasan basah, berat tongkol, dan produksi per plot seta berat 1000 biji, akan tetapi tidak berbeda nyata dengan tinggi tanaman, panjang daun ke tujuh, berat brangkasan kering, dan diameter tongkol. Varietass terbaik adalah NT 10

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