6. reuquyetthong
TRANSCRIPT
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PHN GII
THC VT BC CAO
ThS. Hong Qunh HoaBM Thc vt, Trng i hc Dc H Ni
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Mc tiu hc tp1. Trnh by c c im chung ca phn
gii thc vt bc cao.
2. Trnh by c c im chung, vai tr vi din lm thuc trong ngnh:
i. Ruii. Thng t.iii. C thp btiv. Dng xv. Thngvi. Ngc lan
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Ni dung dy hc
1. c im chung phn gii TVBC2. Phn loi PGTVBC3. Cc ngnh thuc PGTVBC
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1. c im chung ca phn gii
thc vt bc cao C dip lc, tdng. Mi trng sng chuyn ln cn. Cth phn ho thnh: r, thn, l, hoa, qu vht. Sth tinh dn thot li khi mi trng nc:
Ngnh Ru v Dng x: tinh trng c roi bi sang tinon. Ngnh Thng: mt si din (Tu, Bch qu) vn croi tinh trng.
Ngnh Ngc lan: tinh trng khng c roi, c ng phndn ng
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Sxen k th h gia TGT v TBT tin hodn:
Ngnh Ru: TGT > TBT
Ngnh Dng x - Ngc lan: TBT > TGT Thc vt bc cao (ngnh Thng v Ngc
lan) c ht, cy mm nm trong ht.
S loi ln
c im chung ca phn gii thc vt bc
cao (tip)
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S phn loi cc ngnh TVBC
To
N. Dng x trn
N. Dx trn thusinh
T tin DX
K Devon
N. Ru
N. Thng N. L thng N. C thp bt
N. Dng x
N. Thng
Dng x c ht
Nguyn i c sinh
Dng x c ht
Nguyn i trung sinh
N. Ngc lan
793 loi VN56 loi VN
2 loi VN3 loi VN
713 loi VN
51 loi VN9 462 loi VN
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2. Ngnh Ru (Bryopyta)2.1. c im chung
2.2. Phn loi2.3. Cc i din
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Cu to c quan dinh dng C thc thn, l, r gi. Cha c m dn in hnh. Thch nghi vi ni m t.
Sinh sn: Sinh dng: tch nhnh tn, rtruyn
th.V tnh: Bo t.
Hu tnh: Non giao
2.1. c im chung ca
ngnh Ru
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Sinh sn sinh dng ngnh Ru:
R truyn th
Sinh sn sinh dng lp Ru tn
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TGT > TBT
Cy ru ci Cy ru c
Ti tinhTi non Tinh trng
Non cu
Hp t
Th Ti bo tTi bo t
Bo t
Si nguyn ti
Chu trnh sng ca ngnh Ru
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2.2. a dng v phn loi
2.2.1. Lp Ru sng (Anthoceropsida)
2.2.2. Lp Ru tn (Marchantiopsida)2.2.3. Lp Ru (Bryopsida)
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Hng dn TcLp Ru sng v lp Ru tn:
1. c im hnh thi tn.2. Cc hnh thc sinh sn.3. c im hnh thi ca cc b
phn sinh sn.
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Tc ti liu v tr li cc cu hi
sau:1. c im c quan dinh dng cangnh Thng t v C thp bt.
2. c im qu trnh sinh sn cangnh Thng t v C thp bt.
3. V s chu trnh sng.
3. Ngnh Thng t (Lycopodiophyta)
4. Ngnh C thp bt (Equisetophyta)
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5. Ngnh Dng x (Pterophyta)
5.1.c im chung
5.2. Phn loi v
a dng5.3. Cc i din
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5.1. c im chung ca ngnh
Dng x CQ dinh dng
(TBT): Sng a sinh, b sinh,
bm trn , thu sinh. Cy g, bi, tho. C thn r. L ln: nguyn, chia
thy, kp.
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5.1. c im chung ca ngnh
Dng x (tip)
Cu to gii phu: Trung tr nguyn, trung trng, a tr. Mch ngn hnh thang.
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Sinh sn Sinh dng: r,
cnh, c, thn r.
V tnh: Bo tng trong ti bot.
Hu tnh: Nongiao.
5.1. c im chung ca ngnh Dng x(tip)
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Chu trnh sng ca cy Dng x
TBT > TGT
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5.2. a dng v phn loi a dng:
TG: 300 chi, 10700 loiVN: 713 loi.
Phn loi: Lp Li rn (Ophioglossopsida) Lp To sen (Marattiopsida) Lp Dng x (Polipodiopsida)
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H Dng x (Polypodiaceae)c im:
L
a dng. ti bo t hnh trn, hnh thn, ni
lin thnh vch di hoc ph kn mtdi.
Ti bo t c vng c gii v tr kinhtuyn.
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a dng: VN c 29 chi.
i din: Tc k (Drynaria fortuneiJ. Sm.) rng trng (Platycerium coronarium
Desv.) Li mo tai chut (Pyrrhosia
lanceolataFarw.)
H Dng x (Polypodiaceae)
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6. Ngnh Thng (Pinophyta)
6.1.c im chung
6.2.
a dng v phn loi6.3.i din
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6.1. c im chung ca
ngnh Thng (Pinophyta) C quan sinh dng:
TBT l cy g, cy bi, dy leo g. Mch dn l mch ngn hnh ng xu, cha c si
g v m mm g.
Sinh sn: c ht. Th tinh thot li khi mi trng nc. C quan sinh sn: nn c v nn ci. TGT rt gim, nm trong TBT. Ht trn nm trong qu m.
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C quan sinh sn ca ngnh Thng
L bo t ln (Nnci): mang bo tln (non).
L bo t nh (Nnc): mang ccbo t nh (htphn).
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6.2. a dng v phn loia dng: VN c 51 loi.
Phn loi: 3 lp Lp Tu(Cycadopsida) Lp Thng (Pinopsida)
Lp Dy gm (Gnetopsida)
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6.2.1. Lp Tu(Cycadopsida)c im chung: Cy g khc gc. L kp lng chim ln. Hin ch cn b Tu(Cycadopsida).
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H Tu(Cycaceae)c im Thn ct, khng phn nhnh. L kp lng chim ngn, l non xonc.
Nnc v nn ci khc gc. Nn c mang ht phn, cha cc tinhtrng c roi (chi Cycas). Nn ci mang cc non, cha non cu.
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H Tu(Cycaceae)i din:Vn tu(Cycas revolutaThunb.)
Thin tu(C. pectinataGriff.)
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6.2.2. Lp Thng (Pinopsida)c im chung: Cy g
, phn nhnh nhi
u.
L nh, n, nguyn, khng cung,hnh kim/mi gio.
Phn loi:
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Phn loi Lp ThngTT B H1 L qut Bch qu (Ginkgoaceae)
2 Bch tn Bch tn (Araucariaceae)
3 Hong n Hong n (Cupressaceae)
4 Bt mc (Taxodiaceae)
Thng Thng (Pinaceae)Kim giao (Podocarpaceae)
Thng Thng (Taxaceae)
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H Hong n (Cupressaceae)c im chung:
Cy to, nh. Cnh hnh tr. L mc i/vng, l non khc l trng
thnh.
Nn c nh, hnh ui sc. Nn ci k l hay ngn cnh, c vy
mc i hay vng 4.
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i din: Bch xanh (Calocedrus macrolepsisKurz.). Hong n (Cupressus torulosaD. Don). P mu (Fokienia hodginsiiHenry et Thom). Trc bch (Pladycladus orientalisFranco).
H Hong n (Cupressaceae)
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H Thng (Pinaceae)c im chung:
Cy to, c nha. Cnh mc vng, chi c vy. L mc so le, hnh kim. Nnn tnh cng gc. Nn c ring l hoc thnh cm ngn
cnh.
Nn ci gm cc vy mc k l bc, mangnon.
Qu hnh nn, mang cc vy ho g.
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i din:Vn sam (Abies delavayiFranch.) Du sam (Keteleeria evelynianaMasters) Thng ba l (Pinus khasyaRoyle) Thng hai l (Pinus merkusii) Thng ui nga (P. massonianaLamb.) Thit sam (Tsuga dumosa)
H Thng (Pinaceae)
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n tp v cng cSo snh gia 3 ngnh Ru, Dng xv
Thng cccim sau: C quan dinh dng. Hnh thc sinh sn v c quan sinh
sn. ng dng trong i sng / ngnh
Dc.